Ingredient review

SH-Polypeptide-78

INCI: SH-Polypeptide-78

SH-Polypeptide-78 is a synthetic peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with consistent use.

beautyskincareanti-aging

In plain English

SH-Polypeptide-78 is a lab-made chain of amino acids (the building blocks of protein) 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 is the protein that keeps skin plump and smooth. Over time, this can help soften the look of fine lines and make skin feel firmer. It's not a quick fix—you need to use it regularly for weeks to see results.

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-78 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-78.
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-78 is a synthetic peptide, meaning it's a short chain of amino acids created in a lab. Peptides like this are designed to mimic natural signaling molecules in the skin that trigger collagen production.

How it works

When applied topically, SH-Polypeptide-78 penetrates the outer layer of skin and binds to specific receptors on fibroblasts (the cells that make collagen). This binding sends a signal to ramp up collagen synthesis, which helps reinforce the skin's structure and reduce the appearance of wrinkles over time.

Pros

Targeted anti-aging support

SH-Polypeptide-78 specifically encourages collagen production, which can help soften fine lines and improve skin texture over time.

Gentle on skin

It has a low risk of irritation or clogging pores, making it suitable for most skin types, including sensitive skin.

Cons and cautions

Slow results

Unlike some active ingredients that give immediate plumping, this peptide works gradually. You'll need to use it consistently for several weeks to notice visible changes.

Effectiveness depends on formulation

The peptide's ability to penetrate skin and stay stable in the product can vary by brand, so not all products with this ingredient will perform equally.

Best for

Anyone looking to reduce early signs of aging like fine lines
People wanting to improve skin firmness without harsh actives

Use caution if

Those with known allergies to synthetic peptides (rare)

Usage tips

Apply a peptide serum to clean, damp skin before heavier creams to improve absorption.

Use twice daily for best results, and pair with a moisturizer and sunscreen for overall skin health.

Safety summary

SH-Polypeptide-78 is considered safe for topical cosmetic use at typical concentrations. It has low irritation and comedogenic potential, 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 synthetic peptides for anti-aging is well-established, with many studies showing that certain peptides can stimulate collagen production. However, specific clinical data on SH-Polypeptide-78 alone is limited, and most evidence comes from broader peptide research and manufacturer studies.

Common label clues

Typical concentration: Typically used at 0.1% to 1% in leave-on products
Regulatory status: SH-Polypeptide-78 is a cosmetic ingredient regulated as a cosmetic product component in most regions. It is not a drug and is not intended to treat or prevent disease.
Common uses: Anti-aging serums, Firming creams, Eye treatments
Environmental note: As a synthetic peptide, it is produced in controlled lab conditions, which generally has a lower environmental footprint than harvesting from natural sources.

Good to know

Peptides like SH-Polypeptide-78 are often combined with other anti-aging ingredients like niacinamide or hyaluronic acid for added benefits.
This ingredient is not a sunscreen and does not protect against UV damage, so always wear SPF during the day.

Common questions

What is SH-Polypeptide-78 in beauty products?

What does SH-Polypeptide-78 do in a beauty product?

Is SH-Polypeptide-78 safe for most people?

Who should be careful with SH-Polypeptide-78?

Those with known allergies to synthetic peptides (rare)

Research sources

Cosmetic Ingredient Review (CIR) - Safety of PeptidesOpen PubMed - 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.