GLP-1 Evidence

Not medical advice. A record of published research and our assessments of it. The limits

Clinical Evidence of Skin Improvements With a Biologically Active Multimodal Topical Skin Treatment

Design
Clinical trial · Unknown outcome
Match to healthy normal-weight adults aged 55–75
Population unclear[Auto] Population characteristics not extractable from abstract (age ≥45). Needs manual review.
Could weight loss explain it?
Unknown[Auto] Not addressed in abstract.
Study tier
Study tier 4[Auto] Hypothesis-generating design (auto-provisional).
Assessment
Version 1 · automatic, not yet reviewed by a person · Sep 13, 2026

Study facts come from the paper. Population match, weight-loss explanation and study tier are our judgments, made against the reference group of healthy normal-weight adults aged 55–75.

[Auto, unreviewed; quoted from abstract conclusions] Clinical, instrumental, and microscopy assessments of ST26-PF-F1 demonstrated wrinkle-modulating and filler-like effects, visibly more balanced-looking facial geometry, favorable tolerability, and user satisfaction.

01Findings

What the study reported

Drugs
Class unspecified
Primary outcome
Not extracted
Effect
Not extracted
95% confidence interval
Not extracted
Follow-up
45 years
Adverse events
Not extracted
Limitations
Auto-classified from abstract only; effect estimates, adverse events and limitations not extracted. Requires manual review.

Who was studied

Age min
45

Study quality details

Study design
Clinical trial (non-randomized or unclear)
Sample size
not extracted
Randomization
no
Blinding
not stated
Comparator
not stated
Follow up duration
45 years
Outcome type
unknown
Replication
not assessed (auto)
Consistency with other evidence
not assessed (auto)
Population applicability
UNKNOWN
Statistical precision
not extracted
Risk of bias
not assessed (auto)
Funding conflicts
unclear
Peer review status
yes
02Funding

Funding and conflicts

Funding
not reported in abstract
Industry funded
Unclear
Manufacturer
None identified
Sponsor role
not reported in abstract
Author conflicts
not available in metadata
Independent replication
unknown

Funding is shown on every study and never used to score it.

04Source

The source, as retrieved

Abstract

[BACKGROUND] Antiaging skin treatments are continuously in development to meet the needs of an aging population and counteract cosmetic effects of glucagon-like peptide-1 receptor agonists. Peptide Facial Refining Concentrate (ST26-PF-F1) serum contains multiple bioactive peptides within a penetrative delivery system. A clinical study of ST26-PF-F1 assessed its effects on skin health/appearance and tolerability/usability. [METHODS] This noncomparative 12-week study enrolled healthy females aged 45 years or older, Fitzpatrick phototypes I–VI, with evidence of skin aging. Participants applied ST26-PF-F1 twice daily. Efficacy (expert evaluation, instrumental measurements, confocal microscopy, and participant self-assessments) and tolerability/safety (dermatologist and participant reporting) were assessed at weeks 2, 4, 8, and 12. [RESULTS] Statistically significant improvements from baseline were observed for expert evaluator global assessments of fine lines, skin elasticity and plumpness, and facial contour and facial sagging (all time points); and wrinkles and skin firmness (weeks 4, 8, and 12). Significant improvements were also observed in skin hydration and elasticity (all time points); wrinkle volume, depth, and skin texture (weeks 4, 8, and 12); and lifting effect and V-shape (week 12). Confocal microscopy showed statistically significant improvements in interkeratinocyte brightness, papilla morphology, and dermal collagen fibers at weeks 4 and 12 and surface uniformity and keratinocyte morphology at week 12. Participants reported skin improvements across multiple measures and overall product satisfaction. ST26-PF-F1 was well tolerated with no treatment-related stinging, itching, or discomforting sensations. [CONCLUSION] Clinical, instrumental, and microscopy assessments of ST26-PF-F1 demonstrated wrinkle-modulating and filler-like effects, visibly more balanced-looking facial geometry, favorable tolerability, and user satisfaction.

Where this record came from

SourceRetrievedIdentifier
pubmedSep 13, 202642696340
first ingestion