Galloyl Sh-Nonapeptide-3: 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 27, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Galloyl Sh-Nonapeptide-3?

Galloyl Sh-Nonapeptide-3 is a lab-crafted ingredient created by joining galloyl chloride, a derivative of gallic acid found in plants like oak galls and tea leaves, with Sh-Nonapeptide-3, a short chain of nine amino acids modeled after the skin’s own building blocks. The coupling of these two parts results in a molecule that combines the antioxidant edge of gallic acid with the skin friendly nature of peptides.

The concept of marrying plant based antioxidants with peptides took shape in the early 2000s when formulators were looking for gentler ways to boost skin renewal. As peptide research advanced, suppliers experimented with different attachments to improve stability and delivery. The galloyl form showed promise and soon gained traction in premium skin care labs.

Production begins with synthesizing the nonapeptide in a controlled environment to ensure purity. Galloyl chloride is then carefully reacted with the peptide under mild conditions that protect its delicate structure. Once bonded, the new compound is purified, tested for safety, and delivered to cosmetic manufacturers as a concentrated solution or powder.

You will most often see Galloyl Sh-Nonapeptide-3 in leave on formulas where its conditioning effects have time to work. Common formats include anti aging serums, moisturizers, eye creams, sheet masks and targeted spot treatments that aim to smooth texture and support a more even tone.

Galloyl Sh-Nonapeptide-3’s Cosmetic Benefits/Uses

In topical products Galloyl Sh-Nonapeptide-3 serves one main purpose that can make a visible difference to skin quality.

As a skin conditioning agent, it helps improve the look and feel of the skin surface. The peptide portion supports natural renewal while the galloyl segment provides mild antioxidant care. Together they can leave skin softer, better hydrated and more resilient which is why formulators add the ingredient to products designed for smoother brighter looking skin.

Who Can Use Galloyl Sh-Nonapeptide-3

Galloyl Sh-Nonapeptide-3 is generally well tolerated by all major skin types including dry, normal, combination, oily and even sensitive skin thanks to its mild peptide base and low use levels. Those with very reactive or compromised skin barriers may wish to introduce it slowly simply because any new ingredient can feel stimulating on fragile skin.

The compound is created through laboratory synthesis using plant derived gallic acid and an amino acid chain produced without animal inputs so it is considered suitable for both vegans and vegetarians.

Current data shows no specific concerns for pregnant or breastfeeding women when the ingredient is applied topically in cosmetics. That said this is not medical advice and anyone expecting or nursing should have their healthcare provider review any skincare product they plan to use just to be safe.

Galloyl Sh-Nonapeptide-3 does not make skin more sensitive to sunlight and it can be used morning or night. Daily sunscreen is still encouraged to protect skin health overall.

The ingredient plays nicely with most common actives such as niacinamide and hyaluronic acid and does not carry any known restrictions related to long term use frequency or age group.

Potential Side Effects/Adverse Reactions

Side effects and reactions to topical Galloyl Sh-Nonapeptide-3 can vary from person to person. The points below outline potential issues yet they are uncommon when the ingredient is correctly formulated and used as directed.

  • Mild redness or warmth on application
  • Temporary itching or tingling in sensitive areas
  • Dry patches if paired with very strong exfoliants
  • Localized swelling or hives signaling an allergy
  • Contact dermatitis in individuals with peptide sensitivities

If any of these effects occur stop using the product and consult a qualified healthcare professional for guidance.

Comedogenic Rating

Rating: 1/5

Galloyl Sh-Nonapeptide-3 is water soluble and used at low percentages so it leaves no oily film that can block follicles. Its small size lets it absorb quickly while the galloyl group has no inherent pore-clogging traits, keeping buildup risk minimal.

The low score makes it a sound option for those prone to acne or routine breakouts.

Remember that total pore-clogging potential depends on the whole formula. If the peptide is blended with rich oils or heavy waxes the final product could still feel suffocating even though the peptide itself is almost non comedogenic.

Summary

Galloyl Sh-Nonapeptide-3 conditions skin by pairing a nine-amino-acid peptide that nudges natural renewal with a galloyl antioxidant tag that helps fend off surface stressors. This synergy can leave skin smoother, better hydrated and more resilient.

It is mostly found in boutique serums, eye creams and masks so it has not yet reached mainstream popularity, but formulators who want a refined peptide with an antioxidant twist are slowly adopting it.

Available safety data shows it is well tolerated across skin types with only isolated reports of mild redness or tingling. Still, it is wise to patch test new products that contain Galloyl Sh-Nonapeptide-3 to ensure personal comfort and compatibility.

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