Ingredient review

SH-Polypeptide-77

INCI: SH-Polypeptide-77

SH-Polypeptide-77 is a lab-made peptide that may help reduce fine lines by encouraging your skin to produce more collagen, but results vary and it works best with consistent use.

beautyskincareanti-aging

In plain English

SH-Polypeptide-77 is a short chain of amino acids (a protein fragment) made in a lab. When applied to skin, it acts like a tiny messenger that tells skin cells to make more collagen and elastin, the proteins that keep skin firm and bouncy. Think of it as a gentle nudge to your skin's natural repair system, not a magic eraser. It's often found in anti-aging serums and creams.

Review score

Safety, usefulness, and evidence

4.0Good

4.0/ 5

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

How reviews are scored

Quick decision guide

Useful, but context matters

SH-Polypeptide-77 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-77.
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

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

SH-Polypeptide-77 is a synthetic peptide, meaning it's a man-made chain of amino acids designed to mimic natural signaling molecules in the skin. It belongs to a class of ingredients called 'signal peptides' because they send signals to skin cells to boost collagen production.

How it works

When applied topically, SH-Polypeptide-77 penetrates the outer layer of skin and binds to receptors on fibroblasts (the cells that make collagen). This binding triggers a cascade of cellular signals that increase the production of collagen and other structural proteins, helping to plump the skin and reduce the appearance of fine lines and wrinkles over time.

Pros

Gentle anti-aging support

SH-Polypeptide-77 is non-irritating for most skin types, making it a good option for sensitive skin or those new to anti-aging ingredients.

Works with your skin's natural processes

Instead of forcing a reaction, it signals your own cells to produce more collagen, which can lead to more natural-looking results over time.

Cons and cautions

Slow, gradual results

You won't see changes overnight. It typically takes 8–12 weeks of daily use to notice a visible difference in fine lines.

Effectiveness depends on formulation

Peptides are fragile and can break down if not properly formulated. A poorly made product may not deliver enough active peptide to the skin.

Best for

Adults looking for a gentle anti-aging ingredient to soften fine lines
People with sensitive skin who cannot tolerate stronger actives like retinoids

Use caution if

Those expecting immediate or dramatic results (peptides work slowly)

Usage tips

Apply after cleansing and before heavier creams to allow better absorption.

Use consistently twice daily for at least 8 weeks to see potential benefits.

Store products containing peptides in a cool, dark place to help maintain stability.

Safety summary

SH-Polypeptide-77 is considered safe for topical use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. No significant safety concerns have been reported in available literature.

Research notes

Research on SH-Polypeptide-77 specifically is limited, but it belongs to a well-studied class of signal peptides. Studies on similar peptides show they can stimulate collagen synthesis in vitro and in small human trials, though larger, long-term studies are needed to confirm efficacy.

Common label clues

Typical concentration: Typically used at 0.5% to 2% in leave-on products
Regulatory status: SH-Polypeptide-77 is a cosmetic ingredient regulated as a cosmetic product component in most regions, including the US (FDA) and EU (EC). It is not a drug and cannot claim to treat or cure skin conditions.
Common uses: Anti-aging serums, Firming creams, Eye treatments
Environmental note: As a synthetic peptide, its production is lab-based and does not directly involve animal or plant harvesting, but the environmental impact depends on the manufacturing process.

Good to know

SH-Polypeptide-77 is often combined with other peptides in a 'peptide complex' for broader anti-aging effects.
It is water-soluble, so it works well in lightweight serums and gels.

Common questions

What is SH-Polypeptide-77 in beauty products?

What does SH-Polypeptide-77 do in a beauty product?

Is SH-Polypeptide-77 safe for most people?

Who should be careful with SH-Polypeptide-77?

Those expecting immediate or dramatic results (peptides work slowly)

Research sources

Cosmetic Ingredient Review (CIR) - Safety of PeptidesOpen PubMed - Signal Peptides in CosmeticsOpen European Commission Cosmetic Ingredient DatabaseOpen

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.