Ingredient review
SH-Polypeptide-72
INCI: SH-Polypeptide-72
SH-Polypeptide-72 is a lab-made peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with minimal irritation risk.
In plain English
SH-Polypeptide-72 is a short chain of amino acids (a peptide) made in a lab. When applied to skin, it acts like a messenger, telling skin cells to ramp up collagen production. More collagen means fewer fine lines and firmer, plumper skin over time. It's a gentle ingredient, so it works well for most skin types, including sensitive skin.
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-72 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-72.
- 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-72 is a synthetic peptide, specifically a signal peptide, designed to mimic natural peptides that trigger collagen synthesis in the skin.
How it works
It binds to receptors on fibroblasts (the cells that make collagen) and signals them to produce more collagen and other structural proteins like elastin. This helps reinforce the skin's support network, reducing the appearance of wrinkles and improving elasticity.
Pros
Gentle anti-aging support
Unlike stronger actives like retinol, SH-Polypeptide-72 is unlikely to cause irritation, redness, or peeling, making it a good choice for sensitive or reactive skin.
Backed by peptide research
Signal peptides like SH-Polypeptide-72 are supported by dermatological studies showing they can boost collagen when formulated correctly, offering a science-backed approach to anti-aging.
Cons and cautions
Slow, subtle results
You won't see overnight changes. It typically takes 4–8 weeks of daily use to notice visible improvements in firmness and wrinkle depth.
Requires good formulation
Peptides are fragile and can break down in poorly formulated products. The effectiveness depends on the product's pH, packaging, and other ingredients.
Best for
- Anyone looking to reduce fine lines and improve skin firmness
- People with aging or sun-damaged skin seeking gentle anti-aging options
Use caution if
- Those with known allergies to synthetic peptides (rare)
Usage tips
Safety summary
SH-Polypeptide-72 is considered safe for cosmetic use with a low risk of irritation or allergic reactions. It is not known to be comedogenic and is well-tolerated even by sensitive skin types.
Research notes
Signal peptides like SH-Polypeptide-72 have been studied in vitro and in clinical trials for their ability to stimulate collagen synthesis. While individual results vary, the ingredient class is supported by moderate evidence for anti-aging benefits.
Common label clues
- Typical concentration
- Typically used at 0.001% to 0.1% in leave-on products
- Regulatory status
- Approved as a cosmetic ingredient in the EU, US, and other major markets. Not classified as a drug ingredient.
- Common uses
- Anti-aging serums, Firming creams, Eye treatments
- Environmental note
- As a synthetic peptide, it is produced in controlled lab conditions with minimal environmental impact compared to some natural extracts.
Good to know
- SH-Polypeptide-72 is often combined with other peptides or antioxidants for enhanced anti-aging benefits.
- It is water-soluble and works well in serums and lightweight gels.
Common questions
What is SH-Polypeptide-72 in beauty products?
SH-Polypeptide-72 is a short chain of amino acids (a peptide) made in a lab. When applied to skin, it acts like a messenger, telling skin cells to ramp up collagen production. More collagen means fewer fine lines and firmer, plumper skin over time. It's a gentle ingredient, so it works well for most skin types, including sensitive skin.
What does SH-Polypeptide-72 do in a beauty product?
It binds to receptors on fibroblasts (the cells that make collagen) and signals them to produce more collagen and other structural proteins like elastin. This helps reinforce the skin's support network, reducing the appearance of wrinkles and improving elasticity.
Is SH-Polypeptide-72 safe for most people?
SH-Polypeptide-72 is considered safe for cosmetic use with a low risk of irritation or allergic reactions. It is not known to be comedogenic and is well-tolerated even by sensitive skin types.
Who should be careful with SH-Polypeptide-72?
Those 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.