Ingredient review
SH-Polypeptide-102
INCI: SH-Polypeptide-102
SH-Polypeptide-102 is a synthetic peptide that may help support collagen production for firmer, smoother skin, but research is still emerging.
In plain English
SH-Polypeptide-102 is a lab-made chain of amino acids (a peptide) designed to mimic natural signals in your skin. When applied in a cream or serum, it tells your skin cells to produce more collagen, which is the protein that keeps skin plump and firm. Think of it as a tiny messenger that encourages your skin to act younger. It's generally gentle and well-tolerated, but results are gradual and not as dramatic as prescription retinoids.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
SH-Polypeptide-102 is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging SH-Polypeptide-102.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
SH-Polypeptide-102 is a synthetic signal peptide, meaning it's a short chain of amino acids created in a lab to communicate with skin cells and stimulate collagen synthesis.
How it works
It works by binding to receptors on skin cells (fibroblasts) and triggering them to produce more collagen and elastin. This helps improve skin firmness, reduce fine lines, and support the skin's structural matrix over time.
Pros
Gentle collagen support
SH-Polypeptide-102 is a mild ingredient that signals collagen production without the irritation common with stronger actives like retinol, making it suitable for sensitive skin.
Compatible with most routines
It layers well with moisturizers, sunscreens, and other serums, and doesn't cause pilling or sensitivity when used as directed.
Cons and cautions
Gradual results
Unlike prescription treatments, this peptide works slowly. You may need to use it consistently for 8–12 weeks before noticing visible improvements in firmness or lines.
Limited research
Compared to more established peptides, SH-Polypeptide-102 has fewer peer-reviewed studies backing its efficacy, so the evidence is moderate rather than strong.
Best for
- Anyone looking for a gentle anti-aging ingredient to support collagen
- People with sensitive skin who cannot tolerate retinoids
Use caution if
- Those expecting fast or dramatic results may be disappointed
Usage tips
Safety summary
SH-Polypeptide-102 is considered safe for topical cosmetic use at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for most skin types. As with any new ingredient, a patch test is recommended for those with very sensitive skin.
Research notes
Research on SH-Polypeptide-102 is limited but promising. It belongs to a class of signal peptides with established collagen-boosting mechanisms. Most evidence comes from ingredient supplier studies and general peptide research rather than large independent clinical trials.
Common label clues
- Typical concentration
- 0.1% to 1%
- Regulatory status
- Approved as a cosmetic ingredient in the EU, US, and other major markets. No specific restrictions at typical use levels.
- Common uses
- Anti-aging serums, Firming creams, Eye treatments
- Environmental note
- Synthetic peptides are produced in controlled lab settings, which reduces environmental impact compared to animal-derived ingredients, but they are not biodegradable in the same way as natural extracts.
Good to know
- Peptides like SH-Polypeptide-102 are often listed near the middle or end of ingredient lists due to low use concentrations.
- It is not a sunscreen and does not replace SPF for sun protection.
Common questions
What is SH-Polypeptide-102 in beauty products?
SH-Polypeptide-102 is a lab-made chain of amino acids (a peptide) designed to mimic natural signals in your skin. When applied in a cream or serum, it tells your skin cells to produce more collagen, which is the protein that keeps skin plump and firm. Think of it as a tiny messenger that encourages your skin to act younger. It's generally gentle and well-tolerated, but results are gradual and not as dramatic as prescription retinoids.
What does SH-Polypeptide-102 do in a beauty product?
It works by binding to receptors on skin cells (fibroblasts) and triggering them to produce more collagen and elastin. This helps improve skin firmness, reduce fine lines, and support the skin's structural matrix over time.
Is SH-Polypeptide-102 safe for most people?
SH-Polypeptide-102 is considered safe for topical cosmetic use at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for most skin types. As with any new ingredient, a patch test is recommended for those with very sensitive skin.
Who should be careful with SH-Polypeptide-102?
Those expecting fast or dramatic results may be disappointed
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.