Sh-Oligopeptide-28 Aminobutyroyl Sh-Decapeptide-6 Sp: 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-Oligopeptide-28 Aminobutyroyl Sh-Decapeptide-6 Sp?

Sh-Oligopeptide-28 Aminobutyroyl Sh-Decapeptide-6 Sp is a lab-crafted blend of three short chains of amino acids: a signal peptide known as sh-Oligopeptide-28, a calming amino acid called aminobutyric acid and sh-Decapeptide-6, another bioactive signal peptide. Together they form a multifunctional complex that can communicate with skin cells, shield the surface from stress and help keep unwanted microbes in check. The ingredient is entirely synthetic, so no animal or plant sources are used. Peptide chemists build each fragment using solid-phase peptide synthesis, then link them in controlled steps, purify the mixture and stabilize it with protective agents to ensure freshness when added to cosmetic formulas.

The earliest signal peptides appeared in premium anti-age serums in the late 1990s. As research confirmed their ability to nudge skin into making more collagen and defend itself against environmental aggressors, formulators began combining different peptides for broader benefits. Sh-Oligopeptide-28 Aminobutyroyl Sh-Decapeptide-6 Sp is one such next-generation blend, developed to offer four core actions in a single raw material. You will typically spot it in leave-on products like firming creams, eye serums, sheet masks, scalp tonics and restorative hair conditioners where a lightweight, fast-absorbing texture is desired.

Sh-Oligopeptide-28 Aminobutyroyl Sh-Decapeptide-6 Sp’s Cosmetic Benefits/Uses

This multitasking peptide complex supports both skin and hair health in several ways:

  • Antimicrobial: Helps limit the growth of odor-causing or blemish-triggering microbes which keeps formulas fresher for longer and supports a clearer complexion.
  • Antioxidant: Neutralizes free radicals generated by UV light or pollution which can reduce the look of dullness and help maintain a more even skin tone.
  • Hair conditioning: Forms a lightweight film along the hair shaft that improves smoothness, adds subtle shine and reduces static for easier styling.
  • Skin protecting: Supports the skin barrier by reinforcing surface proteins and lipids so skin feels more resilient and less prone to dryness or irritation.

Who Can Use Sh-Oligopeptide-28 Aminobutyroyl Sh-Decapeptide-6 Sp

This peptide blend is generally suitable for all skin types. Dry or mature skin can benefit from its barrier supporting and antioxidant properties while oily or blemish prone skin appreciates the light finish and antimicrobial action. Sensitive skin usually tolerates peptides well because they are skin identical fragments though any formula can still contain other ingredients that may cause irritation.

The ingredient is entirely man-made with no animal derived components so it is appropriate for both vegans and vegetarians.

No published data flag the peptide complex as unsafe during pregnancy or breastfeeding. It is considered low risk because it works on the surface and does not penetrate deeply yet this is not medical advice. Expectant or nursing mothers should show any product they plan to use to their physician or midwife to be certain it fits their personal situation.

Sh-Oligopeptide-28 Aminobutyroyl Sh-Decapeptide-6 Sp does not make skin more sensitive to sunlight so it is not classed as photosensitising. Daily sunscreen is still important to protect the antioxidant benefits the peptide offers. The complex is also compatible with most common actives such as hyaluronic acid, niacinamide and panthenol though very low pH leave-on acids can break down peptides and should not be layered immediately after application.

Potential Side Effects/Adverse Reactions

Side effects from topical use of Sh-Oligopeptide-28 Aminobutyroyl Sh-Decapeptide-6 Sp vary from person to person. The points below note potential issues but they are uncommon when the ingredient is properly formulated and used as directed.

  • Transient redness or warmth at the application site
  • Mild itching or stinging on very reactive skin
  • Contact dermatitis in individuals allergic to specific peptide sequences or preservatives used in the finished product
  • Watery eyes or irritation if the product migrates into the eye area
  • Loss of peptide efficacy when layered directly after strong acidic toners which may lead to unexpected irritation from the acid rather than the peptide itself

If any uncomfortable reaction develops stop using the product and seek advice from a qualified healthcare professional.

Comedogenic Rating

Rating: 0–1. Sh-Oligopeptide-28 Aminobutyroyl Sh-Decapeptide-6 Sp is a small, water-soluble peptide complex that does not form heavy films or leave oily residues, so it has virtually no tendency to block pores. Formulators usually incorporate it at low concentrations in lightweight serums or gels which further limits any clogging risk. This makes the ingredient suitable for acne-prone or breakout-prone skin. Only the overall richness of the finished product or the presence of other pore-clogging additives would change that outlook.

Summary

Sh-Oligopeptide-28 Aminobutyroyl Sh-Decapeptide-6 Sp is a lab-made trio of bioactive peptides that delivers antimicrobial, antioxidant, hair conditioning and skin-protecting benefits by signaling to surface cells, neutralizing free radicals and forming a thin supportive film on skin and hair. While not yet a household name, it is gaining quiet traction in niche anti-age serums and scalp treatments thanks to its multitasking profile and vegan origin.

Current safety data show a low irritation potential and no evidence of systemic concerns, so most users can enjoy its benefits with confidence. As with any new cosmetic ingredient it is still wise to do a quick patch test when trying a fresh product to make sure your skin agrees with the complete formula.

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