Sh-Octapeptide-2: 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 30, 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 Sh-Octapeptide-2?

Sh-Octapeptide-2 is a lab made fragment of the human growth hormone somatotropin. Scientists copy a short stretch of eight amino acids—aspartic acid, glutamic acid, glutamine, glycine, isoleucine, leucine and lysine—then link them into a single chain peptide. Because it is produced in controlled factory conditions, the ingredient is pure, stable and free from animal material.

The peptide entered skin care when researchers noticed that small pieces of growth-related proteins could signal skin cells to look and act younger. By the early 2010s, suppliers perfected solid-phase peptide synthesis methods that let them make Sh-Octapeptide-2 at scale for creams and serums. After purification and safety testing, the powder is blended into water-based formulas.

Today you will most often find Sh-Octapeptide-2 in anti-aging moisturizers, firming masks, eye creams, leave-on treatments and post-procedure soothing gels. Brands use it in lightweight lotions as well as richer night creams because it dissolves easily and works at low doses.

Sh-Octapeptide-2’s Cosmetic Benefits/Uses

Formulators choose Sh-Octapeptide-2 for two key reasons

  • Skin conditioning: Helps the skin surface feel smoother and softer by supporting a healthy moisture balance and encouraging a refreshed appearance which can make fine lines look less noticeable
  • Skin protecting: Supports the skin barrier so it can better defend against everyday stressors like pollution and climate changes reducing the look of fatigue and dullness

Who Can Use Sh-Octapeptide-2

Sh-Octapeptide-2 suits most skin types including dry, normal, combination and oily because it is lightweight, water soluble and non greasy. Sensitive skin usually tolerates it well since the molecule is small and used at low concentrations, though those with a history of peptide allergies should stay cautious.

The peptide is made entirely by chemical synthesis with no animal derived components so it is appropriate for vegans and vegetarians.

Current data shows no specific concerns for topical use during pregnancy or breastfeeding. That said this information is not medical advice and anyone who is pregnant or nursing should review any skin care product with a qualified healthcare professional to be safe.

Sh-Octapeptide-2 does not make skin more prone to sunburn and can be used day or night without increasing photosensitivity. It also plays nicely with common actives like niacinamide, panthenol and hyaluronic acid.

Potential Side Effects/Adverse Reactions

Side effects from topical Sh-Octapeptide-2 vary from person to person. The following issues are possible but uncommon when the ingredient is formulated and used correctly

  • Mild redness or warmth shortly after application
  • Temporary itching or tingling as the product absorbs
  • Localized dryness if paired with strong exfoliants
  • Rare allergic contact dermatitis in individuals sensitive to peptides or preservatives within the formula

If any persistent irritation or unexpected reaction occurs stop use and consult a medical professional.

Comedogenic Rating

Rating: 0 (non-comedogenic)

Sh-Octapeptide-2 is a tiny water-soluble molecule that does not contain heavy oils or waxes, so it does not clog pores. It is typically used at very low levels, further reducing any chance of buildup inside follicles.

Because of this, the ingredient is generally suitable for people who are prone to acne or breakouts. As always overall formulation and the other ingredients in a product matter more than this peptide on its own.

Keep in mind that rich creams or occlusive bases can still trigger congestion even if the peptide itself rates a 0, so check the full ingredient list when shopping.

Summary

Sh-Octapeptide-2 conditions and protects skin by sending youthful signals that encourage a healthier moisture balance, smoother texture and stronger barrier. Its small size lets it mingle easily with skin cells, helping them resist daily stress and appear less tired.

The peptide is slowly gaining popularity in modern anti-aging lines, sitting alongside better-known actives like niacinamide and peptides such as Matrixyl. While not yet a mainstream hero, formulators appreciate its stability and low irritation profile which is driving wider use.

Current research and real-world reports show Sh-Octapeptide-2 is safe for most users with minimal risk of side effects. That said every skin is unique so it is wise to patch test any new product containing this ingredient before full application.

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