Ingredient review
SH-Polypeptide-61
INCI: SH-Polypeptide-61
A synthetic peptide that may help reduce fine lines by signaling skin to produce more collagen, but research is still emerging.
In plain English
SH-Polypeptide-61 is a lab-made protein fragment (peptide) that acts like a messenger to your skin cells. When applied in a cream or serum, it tells your skin to make more collagen, which can help plump up wrinkles and improve firmness over time. Think of it as a gentle nudge to your skin's natural repair system.
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-61 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-61.
- 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-61 is a synthetic peptide, meaning it's a short chain of amino acids made in a lab. It's designed to mimic naturally occurring signaling molecules in the skin that regulate collagen production.
How it works
When applied topically, SH-Polypeptide-61 is thought to bind to receptors on skin cells (fibroblasts), triggering a cascade that increases collagen and elastin synthesis. This can lead to improved skin texture, reduced fine lines, and firmer appearance over weeks of consistent use.
Pros
Gentle on skin
SH-Polypeptide-61 has a low irritation risk, making it suitable for sensitive skin types that may react to stronger actives like retinol.
Targeted anti-aging support
It specifically encourages collagen production, which can help improve skin firmness and reduce fine lines over time.
Cons and cautions
Moderate evidence
While promising, the research on SH-Polypeptide-61 is not as extensive as for some other peptides, so results may be subtle.
Requires consistent use
Like most peptides, it needs to be applied regularly for weeks to months before visible improvements appear.
Best for
- Adults looking to address early signs of aging like fine lines
- Those seeking a gentle anti-aging ingredient without irritation
Use caution if
- Individuals with known allergies to synthetic peptides (rare)
Usage tips
Safety summary
SH-Polypeptide-61 is considered safe for topical use in cosmetics. It has a low irritation and comedogenic risk, and no significant safety concerns have been reported in available literature.
Research notes
Studies on similar signal peptides show they can stimulate collagen production in vitro and in small human trials. However, specific peer-reviewed research on SH-Polypeptide-61 is limited, and most evidence comes from broader peptide research.
Common label clues
- Typical concentration
- Typically used at 0.5% to 2% in leave-on products
- Regulatory status
- Approved as a cosmetic ingredient in many regions including the EU and US, with no known restrictions at typical use levels.
- Common uses
- Anti-aging serums, Firming creams, Eye treatments
- Environmental note
- As a synthetic ingredient, it is produced in controlled lab conditions, reducing environmental impact compared to some natural extracts.
Good to know
- Peptides are often paired with antioxidants like vitamin C for added anti-aging benefits.
- SH-Polypeptide-61 is water-soluble, so it works well in lightweight serums.
Common questions
What is SH-Polypeptide-61 in beauty products?
SH-Polypeptide-61 is a lab-made protein fragment (peptide) that acts like a messenger to your skin cells. When applied in a cream or serum, it tells your skin to make more collagen, which can help plump up wrinkles and improve firmness over time. Think of it as a gentle nudge to your skin's natural repair system.
What does SH-Polypeptide-61 do in a beauty product?
When applied topically, SH-Polypeptide-61 is thought to bind to receptors on skin cells (fibroblasts), triggering a cascade that increases collagen and elastin synthesis. This can lead to improved skin texture, reduced fine lines, and firmer appearance over weeks of consistent use.
Is SH-Polypeptide-61 safe for most people?
SH-Polypeptide-61 is considered safe for topical use in cosmetics. It has a low irritation and comedogenic risk, and no significant safety concerns have been reported in available literature.
Who should be careful with SH-Polypeptide-61?
Individuals with known allergies to synthetic peptides (rare)
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.