Ingredient review
Barley SH-Polypeptide-17
INCI: BARLEY SH-POLYPEPTIDE-17
A gentle, lab-made peptide inspired by barley that may help firm skin and soften fine lines with consistent use.
In plain English
Barley SH-Polypeptide-17 is a man-made version of a protein fragment found in barley. In skincare, it's used to signal skin cells to produce more collagen and elastin, the proteins that keep skin plump and springy. Think of it as a tiny messenger that tells your skin to act younger. It's not a harsh chemical or a plant extract—it's a bio-engineered ingredient designed to be gentle and targeted.
Quick decision guide
Useful, but context matters
Barley SH-Polypeptide-17 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 Barley SH-Polypeptide-17.
- 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
A synthetic peptide (short chain of amino acids) modeled after a protein sequence from barley (Hordeum vulgare). It is produced in a lab using biotechnology, not extracted from the plant itself.
How it works
When applied topically, the peptide is thought to bind to receptors on skin cells and stimulate the production of collagen and other structural proteins. This can help improve skin firmness, reduce the appearance of fine lines, and support the skin's natural repair processes over time.
Pros
Gentle on skin
Unlike retinol or acids, this peptide is unlikely to cause irritation, redness, or peeling, making it suitable for sensitive skin and daily use.
Supports natural collagen
Instead of forcing skin to shed or inflame, it works by encouraging your own collagen production, leading to gradual, natural-looking firmness.
Cons and cautions
Subtle, slow results
You won't see overnight changes. It takes weeks to months of consistent application to notice visible improvements in firmness or fine lines.
Limited research on this exact peptide
While peptides in general are well-studied, specific data on Barley SH-Polypeptide-17 is sparse compared to more established anti-aging peptides.
Best for
- Anyone looking for a gentle anti-aging ingredient
- People with sensitive or reactive skin who want to avoid strong actives
- Those seeking to improve skin firmness over time
Use caution if
- People looking for immediate, dramatic results (peptides work gradually)
- Those with a known allergy to barley or related grains (though the peptide is synthetic, cross-reactivity is theoretically possible)
Usage tips
Safety summary
Barley SH-Polypeptide-17 is considered safe for topical use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk. As with any new ingredient, a patch test is recommended for those with very sensitive skin or known grain allergies.
Research notes
Peptides as a class are supported by moderate evidence for collagen stimulation and anti-aging benefits. However, specific peer-reviewed studies on Barley SH-Polypeptide-17 are limited. Most evidence comes from manufacturer data and broader peptide research.
Common label clues
- Typical concentration
- 0.1% to 1%
- Regulatory status
- Generally recognized as safe for cosmetic use in the EU and US. Not classified as a drug ingredient.
- Common uses
- Anti-aging serums, Firming creams, Eye treatments
- Environmental note
- Produced via biotechnology, which typically has a lower environmental footprint than plant extraction. No known sustainability concerns.
Good to know
- This ingredient is often found in serums and treatments marketed as 'firming' or 'lifting'.
- It is not the same as barley extract or barley water—it's a lab-created peptide inspired by barley protein.
Common questions
What is Barley SH-Polypeptide-17 in beauty products?
Barley SH-Polypeptide-17 is a man-made version of a protein fragment found in barley. In skincare, it's used to signal skin cells to produce more collagen and elastin, the proteins that keep skin plump and springy. Think of it as a tiny messenger that tells your skin to act younger. It's not a harsh chemical or a plant extract—it's a bio-engineered ingredient designed to be gentle and targeted.
What does Barley SH-Polypeptide-17 do in a beauty product?
When applied topically, the peptide is thought to bind to receptors on skin cells and stimulate the production of collagen and other structural proteins. This can help improve skin firmness, reduce the appearance of fine lines, and support the skin's natural repair processes over time.
Is Barley SH-Polypeptide-17 safe for most people?
Barley SH-Polypeptide-17 is considered safe for topical use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk. As with any new ingredient, a patch test is recommended for those with very sensitive skin or known grain allergies.
Who should be careful with Barley SH-Polypeptide-17?
People looking for immediate, dramatic results (peptides work gradually) Those with a known allergy to barley or related grains (though the peptide is synthetic, cross-reactivity is theoretically possible)
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.