Ingredient review

SH-Polypeptide-14

INCI: SH-Polypeptide-14

SH-Polypeptide-14 is a lab-made peptide that may help reduce fine lines by signaling skin to produce more collagen.

beautyskincarepeptide

In plain English

SH-Polypeptide-14 is a short chain of amino acids (the building blocks of protein) created in a lab. In skincare, it acts like a messenger that tells your skin cells to produce more collagen and elastin, which are the proteins that keep skin firm and bouncy. Over time, this can help soften the look of fine lines and improve skin texture. It's a gentle ingredient, so it's suitable for most skin types, including sensitive skin.

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-14 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.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging SH-Polypeptide-14.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. 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-14 is a synthetic peptide, specifically a hexapeptide (made of six amino acids), designed to mimic naturally occurring signaling peptides in the skin.

How it works

When applied topically, SH-Polypeptide-14 penetrates the outer layer of skin and binds to receptors on fibroblasts (the cells that make collagen). This binding triggers a cascade of signals that encourage increased collagen and elastin production, leading to firmer, more resilient skin over weeks of consistent use.

Pros

Gentle anti-aging support

Unlike stronger actives such as retinoids, SH-Polypeptide-14 is unlikely to cause irritation, making it a good option for sensitive skin or those new to anti-aging ingredients.

Works with other ingredients

Peptides like SH-Polypeptide-14 can be layered with moisturizers, sunscreens, and other serums without causing negative reactions, so it's easy to fit into your routine.

Cons and cautions

Slow, subtle results

You'll need to use the product consistently for several weeks to see any visible improvement in fine lines, which may not satisfy those wanting quick changes.

Effectiveness depends on formulation

The concentration and delivery system in the product matter a lot. A low concentration or poorly formulated product may not deliver noticeable benefits.

Best for

  • Anyone looking for a gentle anti-aging ingredient to soften fine lines
  • People with sensitive or reactive skin who want to avoid stronger actives like retinoids

Use caution if

  • Those seeking immediate or dramatic wrinkle reduction (peptides work gradually)

Usage tips

Apply after cleansing and before heavier creams to allow better absorption.
Store products containing peptides in a cool, dark place to help maintain stability.

Safety summary

SH-Polypeptide-14 is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, and no significant safety concerns have been reported in published literature or regulatory reviews.

Research notes

Research on SH-Polypeptide-14 specifically is limited, but it belongs to a well-studied class of signaling peptides. Clinical studies on similar hexapeptides show modest improvements in wrinkle depth and skin firmness after 8–12 weeks of use. More independent research is needed to confirm its efficacy alone.

Common label clues

Typical concentration
0.001% to 0.1%
Regulatory status
SH-Polypeptide-14 is a cosmetic ingredient regulated as a cosmetic product component in most regions, including the EU and US. It is not a drug and is not intended to treat or prevent disease.
Common uses
Anti-aging serums, Eye creams, Firming moisturizers
Environmental note
As a synthetic peptide, it is produced in controlled laboratory conditions, which reduces the environmental impact compared to harvesting from natural sources.

Good to know

  • Peptides are often listed near the end of ingredient lists because they are effective at very low concentrations.
  • SH-Polypeptide-14 is sometimes combined with other peptides or antioxidants for enhanced anti-aging effects.

Common questions

What is SH-Polypeptide-14 in beauty products?

SH-Polypeptide-14 is a short chain of amino acids (the building blocks of protein) created in a lab. In skincare, it acts like a messenger that tells your skin cells to produce more collagen and elastin, which are the proteins that keep skin firm and bouncy. Over time, this can help soften the look of fine lines and improve skin texture. It's a gentle ingredient, so it's suitable for most skin types, including sensitive skin.

What does SH-Polypeptide-14 do in a beauty product?

When applied topically, SH-Polypeptide-14 penetrates the outer layer of skin and binds to receptors on fibroblasts (the cells that make collagen). This binding triggers a cascade of signals that encourage increased collagen and elastin production, leading to firmer, more resilient skin over weeks of consistent use.

Is SH-Polypeptide-14 safe for most people?

SH-Polypeptide-14 is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, and no significant safety concerns have been reported in published literature or regulatory reviews.

Who should be careful with SH-Polypeptide-14?

Those seeking immediate or dramatic wrinkle reduction (peptides work gradually)

Research sources

Cosmetic Ingredient Review (CIR) - Safety of PeptidesOpenPubMed - Peptides in CosmeticsOpenEuropean Commission - CosIng 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.