Barley Sh-Oligopeptide-1: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 23, 2025
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All information on this page is verified using The Personal Care Products Council's (PCPC) INCI database. Our ingredient analyses are based exclusively on PCPC's technical data to ensure accuracy and reliability.

What Is Barley Sh-Oligopeptide-1?

Barley Sh-Oligopeptide-1 is a lab-engineered version of epidermal growth factor sourced from transgenic barley plants. Scientists insert a small piece of human DNA that codes for this growth factor into barley seeds so the mature plants churn out the same short protein. After harvesting, the peptide is extracted, filtered and heat-treated to remove plant debris, giving a pure, vegan ingredient ready for skincare.

Because the molecule is only a few amino acids long it feels weightless on skin and mixes easily into water-based formulas. Trace plant sugars from the barley add a hint of natural humectancy, boosting the supple feel.

The beauty industry turned to barley in the early 2000s when demand grew for animal-free growth factors. The crop’s hardy nature and quick growth made it an affordable, sustainable factory for this peptide, leading high-end brands to adopt it in their rejuvenating lines.

You can now spot Barley Sh-Oligopeptide-1 in serums, sheet masks, eye creams, post-peel soothers and daily moisturizers aimed at hydration and anti-aging.

Barley Sh-Oligopeptide-1’s Cosmetic Benefits/Uses

Barley Sh-Oligopeptide-1 acts as a skin conditioning agent. By mimicking natural growth factors it encourages surface renewal, which can leave skin feeling softer and looking smoother and more even. Its lightweight, calming nature makes it suitable for sensitive or mature complexions, delivering a fresh, hydrated finish without heaviness.

Who Can Use Barley Sh-Oligopeptide-1

This peptide suits most skin types, including dry, normal, combination and oily, because it is lightweight and non-greasy. Sensitive skin usually tolerates it well thanks to its gentle, fragrance-free nature. People with very reactive or broken skin barriers should start slowly since any active protein can feel stimulating.

Barley Sh-Oligopeptide-1 is produced entirely in plants so it is a vegan and vegetarian friendly option, offering a cruelty-free alternative to growth factors that once came from animal tissues.

Current research shows no specific concerns for pregnant or breastfeeding women when the ingredient is used topically in standard cosmetic doses. This is not medical advice and anyone who is pregnant or nursing should confirm product choices with a healthcare provider just to be safe.

The peptide does not make skin more sensitive to sunlight and can be used morning or night without increasing the risk of sunburn, though daily sunscreen is still important for overall skin health.

It layers well with most common actives such as niacinamide, hyaluronic acid and peptides from other sources, adding a mild boost without interfering with them.

Potential Side Effects/Adverse Reactions

Responses to topical Barley Sh-Oligopeptide-1 differ from person to person. The points below outline potential side effects that could occur, but they are uncommon when the ingredient is formulated and used properly.

  • Mild redness or warmth right after application
  • Itching on very sensitive or compromised skin
  • Rare allergic reaction in those with a barley or grain protein allergy
  • Temporary tingling when used alongside strong exfoliants or retinoids

If any irritation or unexpected reaction develops stop use immediately and seek advice from a healthcare professional.

Comedogenic Rating

Rating: 0 (non-comedogenic)

Barley Sh-Oligopeptide-1 is a tiny water-based protein with no fats or waxes so it does not block pores on its own. It rinses off easily, leaves no film and is usually added at very low levels in a formula. This makes it a safe pick for people who are prone to acne or breakouts.

Keep in mind the overall product matters. A serum packed with rich oils could still clog pores even if this peptide is innocent, so check the full ingredient list when clarity is vital.

Summary

Barley Sh-Oligopeptide-1 is a plant-made version of epidermal growth factor that conditions skin by nudging surface cells to renew faster and by holding a touch of moisture. The result can be smoother, softer and more even-toned skin.

While it has a devoted following in higher-end anti-age products it is still less common than classic actives like retinol or vitamin C, but its vegan origin is helping it gain ground.

Current studies and real-world use show it is generally safe, gentle and suitable for most skin types. As with any new skincare ingredient it’s smart to do a quick patch test first to make sure your skin agrees with it.

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