Ingredient review
SH-Polypeptide-30
INCI: SH-Polypeptide-30
A synthetic peptide that may help reduce fine lines and improve skin firmness, but research is still emerging.
In plain English
SH-Polypeptide-30 is a lab-made chain of amino acids (a peptide) designed to signal your skin to produce more collagen and elastin. Think of it as a tiny messenger that tells your skin cells to act younger. It's often added to anti-aging products to help smooth wrinkles and firm the skin over time.
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-30 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-30.
- 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-30 is a synthetic peptide, specifically a hexapeptide (six amino acids linked together). It is engineered to mimic naturally occurring signaling peptides in the skin that regulate collagen production.
How it works
When applied topically, SH-Polypeptide-30 penetrates the outer layer of skin and binds to receptors on fibroblasts (collagen-making cells). This binding triggers a cascade of signals that increase the production of collagen and elastin, the proteins responsible for skin's firmness and elasticity. Over weeks of consistent use, this can lead to a visible reduction in fine lines and improved skin texture.
Pros
Gentle anti-aging
SH-Polypeptide-30 is well-tolerated by most skin types, including sensitive skin, making it a safer alternative to stronger actives like retinoids.
Targets collagen production
It works at a cellular level to stimulate collagen, which is key for maintaining skin firmness and reducing wrinkles over time.
Cons and cautions
Slow results
Visible improvements typically take 8–12 weeks of consistent use, and the effects are subtle compared to more potent ingredients like retinoids.
Limited research
While promising, the evidence for SH-Polypeptide-30 is mostly from lab studies and small trials; large-scale human studies are lacking.
Best for
- Adults looking for gentle anti-aging support
- Those with fine lines and loss of firmness who want a non-irritating option
Use caution if
- Those with known peptide allergies (rare)
- Anyone expecting instant or dramatic results
Usage tips
Safety summary
SH-Polypeptide-30 is considered safe for topical use in cosmetics at typical concentrations. Irritation and allergic reactions are rare. As with any new ingredient, a patch test is recommended.
Research notes
Research on SH-Polypeptide-30 is moderate. In vitro studies show it stimulates collagen synthesis, and small clinical trials report improvements in skin firmness and wrinkle depth. More robust human studies are needed to confirm long-term efficacy.
Common label clues
- Typical concentration
- 0.1% to 1%
- Regulatory status
- Approved as a cosmetic ingredient in the EU, US, and other major markets. Not classified as a drug.
- Common uses
- Anti-aging serums, Firming creams, Eye treatments
- Environmental note
- Synthetic peptides are produced in labs and have a lower environmental footprint compared to animal-derived ingredients.
Good to know
- Peptides like SH-Polypeptide-30 are often listed near the middle or end of ingredient lists because they are effective at low concentrations.
- Store products containing peptides away from direct sunlight and heat to maintain stability.
Common questions
What is SH-Polypeptide-30 in beauty products?
SH-Polypeptide-30 is a lab-made chain of amino acids (a peptide) designed to signal your skin to produce more collagen and elastin. Think of it as a tiny messenger that tells your skin cells to act younger. It's often added to anti-aging products to help smooth wrinkles and firm the skin over time.
What does SH-Polypeptide-30 do in a beauty product?
When applied topically, SH-Polypeptide-30 penetrates the outer layer of skin and binds to receptors on fibroblasts (collagen-making cells). This binding triggers a cascade of signals that increase the production of collagen and elastin, the proteins responsible for skin's firmness and elasticity. Over weeks of consistent use, this can lead to a visible reduction in fine lines and improved skin texture.
Is SH-Polypeptide-30 safe for most people?
SH-Polypeptide-30 is considered safe for topical use in cosmetics at typical concentrations. Irritation and allergic reactions are rare. As with any new ingredient, a patch test is recommended.
Who should be careful with SH-Polypeptide-30?
Those with known peptide allergies (rare) Anyone expecting instant or dramatic results
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.