Calecim Professional Serum and the Rise of Regenerative, Clinic-Grade Skincare: What the Science and Real Users Reveal

Table of Contents

1. Key Highlights
2. Introduction
3. How regenerative skincare differs from conventional actives
4. What PTT-6® is and how it works
5. The clinical origin story: why practitioners began using regenerative serums
6. What the studies show: measurable markers and their limitations
7. Real-world results: how patients and everyday users describe the effect
8. How to incorporate a clinic-grade regenerative serum into your routine
9. Safety, sourcing and ethical considerations
10. Comparing regenerative serums with other high-performance options
11. Who is most likely to benefit
12. Practical considerations: cost, packaging and sensory factors
13. Evidence gaps and what robust trials would address
14. Regulatory context and labeling: what “clinic-grade” actually means
15. Ethical communication and marketing
16. Cost versus value: is clinic-grade regenerative skincare worth it?
17. The scent and the look: why sensory details matter to adoption
18. Case example: pairing PTT-6® serum with microneedling
19. Practical guidance for clinicians and patients
20. The future of clinic-born skincare: where research is headed
21. Final considerations: balancing optimism with critical evaluation
22. FAQ

Key Highlights

• Clinic-born regenerative serums like Calecim Professional Serum use cell-derived signalling proteins (PTT-6®) rather than live stem cells to mimic wound-healing signals associated with collagen, elastin and hydration.
• Early clinical testing and widespread clinical use report measurable increases in elastin and hyaluronic acid markers, faster post-procedure recovery and gradual improvements in skin texture; users describe brighter, plumper, and calmer skin over time.
• Incorporating such serums into at-home routines or immediately after in-clinic treatments is common practice, but consumers should understand the evidence limits, application methods, ethical sourcing, cost and safety considerations.

Introduction

A subtle shift is underway in how people choose skincare. Glossy marketing and celebrity collaborations no longer hold the same sway as formulations that bring clinical science into everyday routines. At the center of that movement sits a compact, pink bottle that a growing number of dermatologists and patients describe as “clinic-grade” rather than “beauty-counter.” Calecim Professional Serum — once reserved for post-procedure care — now features in regular bathroom cabinets. Its claim to distinctiveness is PTT-6®, a complex of signalling proteins harvested from ethically sourced umbilical cord lining stem cells. The formula does not transplant cells. Instead, it delivers the cocktail of growth factors, cytokines and exosome-like proteins those cells secrete — the biochemical cues that coordinate repair and renewal in wounded tissue.

The product’s trajectory — from practitioner-supported post-procedure aid to mainstream consumer favorite — reveals how regenerative medicine concepts have begun to reshape cosmetics. Examining the science behind signalling molecules, the clinical observations that encouraged at-home use, the available trial data and the practical realities of integrating such serums into skincare routines clarifies both the potential and the limits of clinic-grade regenerative skincare.

How regenerative skincare differs from conventional actives

Traditional cosmetic serums typically rely on two approaches: topical hydration and targeted modulation of skin processes. Hyaluronic acid binds water to restore plumpness; retinoids accelerate cell turnover and stimulate collagen; antioxidants counter oxidative stress. Regenerative serums aim for a different level of interaction. Rather than simply supplying a single active molecule, they deliver a complex blend of signalling proteins intended to replicate the communication patterns cells use during wound healing.

Cell signalling molecules — growth factors, cytokines and proteins carried in exosomes — instruct cells such as fibroblasts and keratinocytes to produce structural proteins, regulate inflammation and coordinate tissue repair. Regenerative serums like Calecim’s do not introduce live stem cells to the skin. They supply the signalling milieu those cells generate, concentrated into a topical preparation. The idea is not immediate resurfacing or hydration alone, but gradual support for the biological pathways that maintain firmness, elasticity and skin hydration.

This distinction has practical implications. Conventional actives often produce visible changes on the skin’s surface within weeks. Regenerative signalling approaches are designed to support deeper cellular processes; improvement tends to be incremental and cumulative. Users frequently report changes such as smoother texture, improved suppleness and better recovery after procedures rather than overnight transformations.

What PTT-6® is and how it works

PTT-6® is the proprietary complex that defines Calecim Professional Serum. According to the manufacturer and clinicians using the product, the complex contains more than 3,000 different growth factors, cytokines and exosome-like proteins per millilitre. These molecules are derived from the secretome — the collection of proteins secreted by umbilical cord lining stem cells — rather than from intact cells themselves.

Why focus on secreted proteins? During wound healing the body orchestrates repair through a carefully timed suite of signalling molecules. Growth factors recruit and activate fibroblasts, the cells responsible for synthesizing collagen and elastin. Cytokines modulate inflammation, ensuring the response is robust but not destructive. Exosomes and small vesicles shuttle regulatory proteins and microRNA between cells, amplifying or dampening responses where needed. Recreating that signalling environment topically aims to nudge skin cells toward behaviours associated with repair and maintenance: increased synthesis of structural proteins, improved hydration and an enhanced ability to recover from insult.

Clinical users emphasize that the intended mechanism is signalling, not cell replacement. The proteins in PTT-6® operate as messengers. They interact with receptors on the surface of skin cells to modulate gene expression and cellular activity. The serum’s application after controlled micro-injury — microneedling, lasers, or other resurfacing methods — takes advantage of temporarily increased skin permeability and the heightened receptivity of activated cells to regenerative cues.

The clinical origin story: why practitioners began using regenerative serums

Regenerative serums did not arrive on shelves overnight. Their emergence followed observations in aesthetic clinics. Practitioners performing microneedling, lasers and other procedures noted that applying a concentrated mix of healing signals immediately after treatment seemed to speed recovery and improve outcomes.

Dr Edel Woods, an aesthetic physician and founder of ORA Skin Clinic, describes the logic plainly: the body releases a specific, orchestrated pattern of signalling molecules during wound healing; applying a similar combination topically supports that process. In practice, clinicians observed reduced post-procedure redness, faster restoration of normal texture and a general easing of patient discomfort. Those benefits were particularly valuable in settings where clinicians intentionally create micro-injury to stimulate collagen formation.

Early adopters used such serums as adjuncts to clinical procedures. They reported two kinds of benefits: acute peri-procedural improvements and longer-term skin quality gains among patients who continued home use. The pattern was consistent enough that manufacturers developed consumer-facing formulations with clinic-strength concentrations, enabling patients to continue the same signalling support between visits.

This route from clinic to consumer is mirrored in other areas of medicine-to-beauty translation — elements of professional protocols migrate into mass-market offerings once demand and safety data align.

What the studies show: measurable markers and their limitations

Objective measures from early testing have been encouraging but must be interpreted carefully. A study referenced by the manufacturer and clinicians reported a 56 percent increase in elastin production and an 83 percent increase in hyaluronic acid levels in a cohort of forty participants. A smaller, targeted trial involving nine subjects who applied the serum to eyelid skin indicated improvements in elasticity, firmness and a reduction in perceived fine lines.

These markers matter. Elastin contributes to the skin’s ability to rebound and maintain structure; hyaluronic acid is central to tissue hydration and plumpness. Increases in these molecules align with the reported subjective improvements: smoother texture, increased plumpness and better hydration.

Limitations deserve equal attention. The trials described are small and, as reported, likely industry-sponsored. Sample sizes — forty and nine participants — do not provide the statistical power of larger randomized controlled trials. The studies’ designs, endpoint definitions, control conditions and peer review status are not fully detailed in publicly available summaries. That does not negate the reported changes, but it does mean results should be viewed as preliminary evidence rather than definitive proof.

Clinical observations and patient-reported outcomes provide valuable context. Practitioners have noted consistent benefits in recovery times and texture among patients continuing the serum post-treatment. Consumer reviews highlight steady improvements over weeks and months. Together, laboratory markers, clinical experience and user feedback create a convergent picture: PTT-6®-based formulations appear to support processes associated with improved skin function and appearance. Robust, independent clinical trials would strengthen the evidence base and clarify which patient populations are most likely to benefit.

Real-world results: how patients and everyday users describe the effect

Patient experience provides the clearest picture of how regenerative serums function outside controlled environments. Users commonly describe gradual changes rather than dramatic overnight effects. Typical reports include:

• Improved hydration and a “plumper” appearance, often described as regained volume or reduced hollowness.
• Smoother texture and reduced visibility of fine lines, especially when combined with other active treatments like retinoids or in-clinic procedures.
• Faster recovery after microneedling or laser treatments, with redness calming more quickly and skin regaining normal texture in fewer days.
• The ability to simplify routines; some users report replacing several growth-factor products with a single serum that delivers clinic-grade signalling.

Trustpilot and other review platforms feature comments echoing these themes. One reviewer reported restored glow, increased plumpness and visible improvement in skin volume. Another said the serum reduced lines and left the skin “super soft and smooth.” For those undergoing procedures, users often pair the serum with a recovery complex or night products; reports indicate noticeable calming within hours and visible brightness within days.

Real-world use highlights two practical points: first, outcomes accumulate; second, synergy matters. Users who layer regenerative serums with evidence-based actives such as tretinoin and vitamin C, or who apply the serum immediately after microneedling, commonly report more noticeable improvements than those using it in isolation for a short period.

How to incorporate a clinic-grade regenerative serum into your routine

Integrating a regenerative serum into a skincare routine requires an understanding of timing, layering and the product’s intended purpose.

• Baseline application: Common practice is to apply a few drops onto clean, towel-dried skin. Many users apply the serum before night cream, allowing the signalling proteins to interact with skin cells overnight when repair processes are active. A few drops spread across the face are typically sufficient; clinical-grade products aim to deliver concentrated activity in small volumes.
• Pairing with active ingredients: Some users combine the serum with antioxidant vitamin C in the morning and tretinoin in the evening. Clinicians advise spacing potent actives when introducing new products. For example, apply vitamin C in the morning with sunscreen and reserve the serum for the evening to complement nightly repair processes. If using tretinoin, many users continue both but monitor irritation; starting slowly and increasing tolerance is common practice.
• Post-procedural use: When used after microneedling, lasers or other controlled resurfacing procedures, the serum is typically applied immediately to support recovery. Clinicians highlight that the injured skin is receptive to signalling cues, which may improve both comfort and outcomes.
• Combination with moisturizers and sunscreens: Regenerative serums are part of a broader regimen. They work alongside moisturizers that seal hydration and sunscreens that protect repair processes from UV damage. A typical routine might include gentle cleanser → serum → moisturizer → sunscreen in the morning, and cleanser → serum → moisturizer at night.
• Frequency and duration: Users generally apply the serum daily; visible improvements often develop over weeks to months. Clinical results cited involved sustained use, and anecdotal reports describe continuing the product long-term as a maintenance strategy.

Patch testing is prudent for anyone trying a new biologically active product. Although the serum is designed to be well tolerated — and clinics commonly use it — individual sensitivities can occur. If irritation or unexpected reactions arise, discontinue use and consult a clinician.

Safety, sourcing and ethical considerations

Regenerative serums turn on the spotlight not only on efficacy but also on sourcing and safety. Calecim’s PTT-6® is derived from umbilical cord lining stem cells, sourced under protocols the manufacturer describes as ethical. The product’s design deliberately avoids applying intact, living cells to patients; it uses secreted proteins instead. That distinction is important for safety and regulatory categorization: topical signalling proteins do not constitute cell therapy.

Public concerns sometimes focus on whether human-derived materials raise risks of immune reaction or infection. Manufacturers and clinicians emphasize that secretome preparations undergo stringent processing and testing to remove cellular debris and potential contaminants. Nonetheless, because formulations contain biologically active proteins, rigorous manufacturing standards and transparent sourcing protocols are essential.

Regulatory frameworks differ internationally for cosmetics versus medical therapies. Topical serums marketed as cosmetics are subject to different oversight than injectable or transplantable cell therapies. Clinicians using such serums in procedural settings do so within the scope of their professional judgment, combining them with standard antiseptic and procedural safeguards.

Ethical sourcing matters beyond safety. Umbilical cord tissues are typically donated after birth with informed consent. Ethical programs ensure donors understand how tissues will be used and that compensation or coercion are avoided. Transparent information about sourcing, processing and testing helps clinicians and consumers make informed decisions.

Comparing regenerative serums with other high-performance options

Consumers evaluating clinic-grade serums face a landscape of alternatives: retinoids, peptides, platelet-rich plasma (PRP), microneedling alone, hyaluronic acid injectables, and more. Regenerative serums occupy a specific niche within that spectrum.

• Retinoids: Retinoids remodel skin by increasing cell turnover and stimulating collagen synthesis. They are well-established with robust trial evidence. Regenerative serums aim to support repair pathways rather than accelerate cellular turnover directly, and can be complementary to retinoid regimens.
• Peptides: Many peptide serums claim to signal fibroblasts to produce more collagen. Regenerative serums differ by offering a far broader array of signalling molecules, not just a handful of peptides.
• PRP and autologous treatments: Platelet-rich plasma uses a patient’s own blood-derived growth factors, applied topically or injected. PRP concentrates autologous signalling proteins in a way analogous to secretome approaches. Regenerative serums use standardized, non-autologous secretomes, offering consistency and availability without requiring a blood draw or in-clinic preparation.
• Injectable fillers and neuromodulators: These procedures alter appearance immediately — fillers restore volume, neuromodulators reduce dynamic lines. Regenerative serums aim to improve the skin’s baseline quality and resilience rather than create immediate volumetric change.
• Microneedling with or without adjuncts: Microneedling creates channels that increase product penetration and stimulate collagen. When combined with a regenerative serum, clinicians report enhanced recovery and additive signalling effects because micro-injury increases cell receptivity.

The choice among these options depends on goals. For those seeking gradual improvement in skin quality and resilience, regenerative serums offer a biologically informed option. For immediate volumizing or dynamic wrinkle correction, injectables remain the primary tools. Many patients find multi-modal approaches — combining in-clinic procedures with at-home regenerative support — deliver the most satisfying results.

Who is most likely to benefit

Observations from clinics and user testimonials suggest several groups are particularly likely to notice benefits:

• Patients undergoing in-clinic resurfacing or microneedling who want to improve recovery time and outcomes.
• Individuals noticing age-related declines in skin firmness and hydration who prefer a biologically oriented approach rather than strictly cosmetic masking.
• Users who already employ potent actives (tretinoin, vitamin C) and seek an adjunct that supports repair pathways.
• Those willing to commit to sustained use: regenerative signalling effects accumulate over weeks and months rather than producing overnight change.

Younger users seeking immediate, dramatic results from a single product may be less satisfied. Regenerative serums function best as part of a long-term maintenance strategy that includes sun protection, gentle exfoliation as tolerated and appropriate in-clinic procedures when indicated.

Practical considerations: cost, packaging and sensory factors

A frequent critique of clinic-grade serums is cost. Because they are concentrated and often derived from specialized processes, prices tend to be higher than typical retail serums. Users and clinicians emphasize value in terms of outcomes rather than unit price; a small number of drops per application can make concentrated formulations economical over time.

Packaging reflects the product’s sensitivity. Many regenerative serums use opaque bottles and droppers to minimize light exposure and contamination. Some practitioners refrigerate stock in clinics to prolong stability before dispensing. Consumers should follow manufacturer guidance on storage and shelf life.

Sensory characteristics matter. The Calecim Professional Serum described by users and reviewers is small, pink and has a faint yeasty scent for some. Texture is typically lightweight and absorbent, designed to layer under moisturizers without pillowing. Some users notice immediate sensory comfort; others focus solely on long-term visual improvements.

Evidence gaps and what robust trials would address

The current data set contains promising signals but gaps remain. Future independent, randomized controlled trials should address:

• Larger sample sizes with diverse demographics, including a range of ages, skin types and ethnic backgrounds, to determine generalizability.
• Head-to-head comparisons with placebo or established actives to quantify incremental benefits.
• Standardized, blinded outcome measures for elasticity, hydration, fine lines, patient-reported outcomes and post-procedure recovery times.
• Long-term safety monitoring to assess immunologic or other delayed adverse events.
• Dose-response evaluations to identify optimal concentration and application frequency.

Transparency in funding and peer review is critical. Independent replication of manufacturer-reported results will strengthen clinical confidence and help clinicians decide where regenerative serums fit in treatment algorithms.

Regulatory context and labeling: what “clinic-grade” actually means

“Clinic-grade” is a label that conveys professional endorsement rather than a specific regulatory classification. In practice, products branded or sold through clinics may contain higher concentrations of actives and more controlled sourcing and processing than mass-market items. However, regulatory frameworks vary by country. Many regenerative serums are marketed as topical cosmetics rather than medical therapies, a distinction with implications for claims, testing requirements and oversight.

A product used in conjunction with clinical procedures is often vetted within professional communities due to anecdotal evidence and practitioner experience. That does not substitute for formal regulatory approval of therapeutic claims. Consumers should read labels carefully and look for transparency about ingredient sourcing, processing and testing, as well as clear instructions for clinical use versus at-home application.

Ethical communication and marketing

As regenerative science intersects with consumer beauty, clear, accurate communication becomes essential. Distinguishing secretome-based signalling proteins from “stem cell therapies” protects consumers from confusion and unrealistic expectations. Marketing language should avoid implying that topical use replicates the full biological complexity of cell therapies or delivers rapid, dramatic reversal of aging.

Clinicians have a role in setting expectations. In practice, informed consent for in-clinic use and clear guidance for at-home maintenance help patients understand the product’s purpose: to support repair and resilience over time, not to produce instant or permanent restoration of youthful tissue architecture.

Cost versus value: is clinic-grade regenerative skincare worth it?

Evaluations of cost should weigh the concentration and intended outcomes. Regenerative serums typically require only small amounts per application; a single bottle can last several months with routine use. For patients combining the serum with in-clinic procedures, the added cost may be reasonable relative to improved recovery and perceived outcomes. For standalone consumers, value depends on goals: those seeking cumulative improvements in texture, hydration and skin resilience often justify the expense; shoppers seeking rapid change may prefer alternative interventions.

Consider the product’s place in a broader regimen. Daily sunscreen, appropriate exfoliation, and evidence-based actives like retinoids and antioxidants deliver strong returns on investment. Regenerative serums complement — rather than replace — these foundations.

The scent and the look: why sensory details matter to adoption

A product’s sensory profile influences adherence. Calecim’s serum is described as slightly yeasty-smelling by some users and comes in a small pink package. For many, mild scent or unconventional aesthetic is a small price for perceived benefits. For fragrance-sensitive users, a faint yeasty aroma or any scent at all may be a deterrent; testing the product on a small area before applying broadly is a practical precaution.

Clinics prioritize formulation tolerance because patient comfort is essential during post-procedure care. Practitioners report high acceptability among patients, though individual preferences differ. Packaging that minimizes exposure to air and light also helps preserve the integrity of sensitive proteins, which in turn influences both performance and scent stability.

Case example: pairing PTT-6® serum with microneedling

A typical clinical sequence illustrates the serum’s role. A patient undergoes microneedling to address fine lines and textural irregularities. Immediately post-procedure, while microchannels are still present, the clinician applies PTT-6®-containing serum. The signalling proteins interact with activated fibroblasts and keratinocytes, supporting the wound-healing cascade in a guided manner. The patient reports reduced redness within hours and an overall smoother texture within days to weeks. Continued at-home use of the serum maintains the signalling input between treatments, supporting gradual improvements in elastin and hyaluronic acid markers over months.

This scenario captures the serum’s dual function: it is both an acute recovery aid and a chronic maintenance tool.

Practical guidance for clinicians and patients

Clinicians advising patients on regenerative serums should:

• Clarify what the product contains (secreted proteins, not live cells) and explain the intended mechanism in plain terms.
• Set expectations about timelines: improvements tend to be gradual and cumulative.
• Recommend patch testing for sensitive individuals.
• Provide guidance on layering with other actives, especially retinoids and exfoliants, to minimize irritation.
• Use the product in procedural protocols where evidence and experience suggest benefits, and document outcomes to inform practice.

Patients should:

• Read product labeling and sourcing statements.
• Apply small amounts, observing skin response before increasing frequency.
• Use sunscreen diligently; cellular repair is compromised by UV exposure.
• Discuss the product with their treating clinician if undergoing aesthetic procedures to ensure appropriate timing and combination with other treatments.

The future of clinic-born skincare: where research is headed

The translation of regenerative medicine principles into topical skincare is likely to deepen. Areas to watch include:

• Refined secretome preparations that target specific pathways for elasticity, pigmentation or barrier function.
• Combination products that pair signalling proteins with stabilizing matrices to improve penetration and longevity.
• Larger independent clinical trials examining both objective markers and patient-centered outcomes.
• Personalized approaches that match specific secretome profiles with individual patient biology.

As evidence accumulates, clinical protocols will evolve to leverage signalling proteins in targeted ways — as adjuncts to procedures, as maintenance therapy and potentially as early interventions to sustain skin function across decades.

Final considerations: balancing optimism with critical evaluation

Regenerative, clinic-grade serums represent a shift toward bioinformed skincare. The idea of supplying the skin with a concentrated set of signals associated with repair resonates with both clinicians and consumers. Early evidence — from laboratory markers to clinical observation and user reviews — indicates that such products can support elasticity, hydration and recovery after procedures.

Skepticism remains a healthy part of evaluation. The studies reported to date are limited in size and scope. Independent replication and larger trials will sharpen understanding of who benefits most and by how much. Meanwhile, practical experience suggests that for many users, integrating a signalling-protein serum into a broader regimen yields meaningful, cumulative improvements in skin quality.

For those curious about clinic-inspired approaches without invasive procedures, products like Calecim Professional Serum offer a researched, practitioner-endorsed option. They combine regenerative biology with the convenience of at-home application. The value they deliver will hinge on realistic expectations, long-term use and compatibility with a foundational regimen: sun protection, appropriate actives and, when indicated, professional treatments.

FAQ

Q: What exactly is in the Calecim Professional Serum? A: The serum contains a proprietary PTT-6® complex composed of growth factors, cytokines and exosome-like proteins derived from the secretome of ethically sourced umbilical cord lining stem cells. It delivers a concentrated set of signalling proteins rather than live cells.

Q: How does a regenerative serum differ from a retinoid or peptide serum? A: Retinoids accelerate cell turnover and stimulate collagen production; peptides typically target individual signalling pathways to encourage collagen synthesis. Regenerative serums supply a broader, multi-component signalling milieu intended to mimic the natural combination of molecules released during wound healing. The aim is to support repair and maintenance pathways rather than to produce immediate resurfacing.

Q: What evidence supports the serum’s effectiveness? A: Manufacturer-reported studies include a 40-person trial showing increases in elastin (56 percent) and hyaluronic acid levels (83 percent), and a small nine-person eyelid study reporting improved elasticity and reduced perceived fine lines. Clinical experience and user testimonials also describe improved hydration, texture and faster post-procedural recovery. Larger, independent trials would strengthen the evidence base.

Q: Can I use this serum after microneedling or laser treatments? A: Yes. Clinicians often apply regenerative serums immediately after microneedling or laser treatments to support healing and comfort. Patients commonly report reduced redness and faster recovery when the serum is integrated into post-procedure protocols. Follow your clinician’s guidance for timing and frequency.

Q: How should I apply the serum at home? A: Typical use involves applying a few drops to clean skin, often in the evening before moisturizer. It can be mixed into a moisturizer or applied directly, depending on personal preference and product instructions. Patch test first to check for sensitivity.

Q: Are there safety or ethical concerns I should consider? A: The serum uses secreted proteins from umbilical cord lining stem cells; manufacturers state tissues are ethically sourced with donor consent. Products undergo processing to remove cellular material and contaminants. Because these formulations contain biologically active proteins, follow storage and usage guidelines and consult a clinician if unsure. Patch testing and professional oversight during in-clinic use are prudent.

Q: Will this serum replace the need for other treatments like fillers or Botox? A: No. Regenerative serums support skin quality and resilience over time but do not provide immediate volumizing effects like fillers or the neuromuscular modulation achieved by Botox. Many patients combine clinic procedures with at-home regenerative support for complementary results.

Q: How soon will I see results? A: Users report gradual improvements over weeks to months. Immediate benefits tend to be related to comfort and reduced redness after procedures, while improvements in texture, hydration and firmness accumulate with sustained use.

Q: Is the product suitable for all skin types? A: Clinicians report broad tolerability across skin types, but individual sensitivities can occur. Patch testing and consultation with a dermatologist or aesthetic physician are recommended for those with sensitive skin, autoimmune conditions or concerns about biologically derived products.

Q: Is refrigeration required? A: Storage requirements vary by product. Follow the manufacturer’s instructions on storage and shelf life. Some clinics refrigerate stock to maintain stability but consumer guidance from the manufacturer should be followed for at-home storage.

Q: How does cost compare to other high-performance serums? A: Clinic-grade regenerative serums tend to be more expensive than mass-market options but are often concentrated, requiring only small amounts per application. Evaluating cost should factor in duration of use and integration into a broader, evidence-based regimen.

Q: What future research would help clarify benefits? A: Larger randomized controlled trials with diverse participants, standardized outcome measures, independent replication and long-term safety monitoring would clarify efficacy, identify optimal use cases and inform clinical guidelines.