Sh-Oligopeptide-1 Alanyl Sr-Spider 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 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-1 Alanyl Sr-Spider Oligopeptide-1?

Sh-Oligopeptide-1 Alanyl sr-Spider Oligopeptide-1 is a lab made protein designed to support and protect the skin. Scientists build it by fusing the genes for two well known peptides, sh-Oligopeptide-1 and sr-Spider Oligopeptide-1, then adding a starting signal for the amino acid alanine. This custom gene is placed inside a friendly strain of E. coli which grows in large stainless-steel tanks. As the bacteria ferment they churn out the 103-amino-acid protein, which is later purified, filtered and dried into a fine powder ready for cosmetic use.

The idea of blending human growth factor–like peptides with spider silk inspired sequences began in the early 2000s when researchers were searching for stable skin-repairing actives that could survive in water-based creams. By combining these two peptide families they created a molecule that holds on to water, sticks lightly to the skin surface and signals a gentle renewal response, making it attractive to skin care formulators.

Today you will most often see Sh-Oligopeptide-1 Alanyl sr-Spider Oligopeptide-1 in lightweight serums, anti-aging creams, sheet masks, calming gels, eye treatments and everyday moisturizers where it works alongside hydrators and antioxidants to keep the skin comfortable and resilient.

Sh-Oligopeptide-1 Alanyl Sr-Spider Oligopeptide-1’s Cosmetic Benefits/Uses

This multifunctional peptide earns its place in formulas for one key reason.

Skin protecting: It forms a breathable veil that helps shield the skin from everyday stress while supporting the natural barrier, keeping moisture in and irritants out. Its growth factor-like sequence can also encourage a smoother look over time which is why it is favored in products aimed at tired or fragile skin.

Who Can Use Sh-Oligopeptide-1 Alanyl Sr-Spider Oligopeptide-1

This peptide suits nearly all skin types. Dry or mature complexions appreciate its moisture-locking film while oily and combination skin benefit from the weightless feel that will not clog pores. Sensitive skin generally tolerates it well thanks to its mild nature, though anyone with a known protein allergy should approach with caution.

Because the protein is grown in a plant-based fermentation medium and no animal-derived raw materials are involved, it is considered suitable for both vegans and vegetarians.

No specific warnings exist for pregnant or breastfeeding women. The molecule remains on the surface and is not expected to absorb systemically, but this is not medical advice. Expectant or nursing mothers should share their full skincare routine with a qualified healthcare provider before use to be safe.

The ingredient does not increase photosensitivity and can be worn morning or night without raising the risk of sun-related irritation. It also plays nicely with most other actives, so formulators often combine it with acids, retinoids or antioxidants for added benefits.

Potential Side Effects/Adverse Reactions

Side effects from topical Sh-Oligopeptide-1 Alanyl Sr-Spider Oligopeptide-1 vary from person to person. The points below cover potential reactions but they are uncommon when the ingredient is properly formulated and used as directed.

  • Temporary redness or warmth at the application site
  • Mild stinging or tingling, especially on freshly exfoliated skin
  • Itchiness or localized rash in individuals sensitive to proteins
  • Contact dermatitis if used in a product with an unsuitable preservative system
  • Eye irritation if serum inadvertently migrates into the eye area

If any of these reactions occur stop using the product and consult a healthcare professional.

Comedogenic Rating

Rating: 0 (non-comedogenic)

Sh-Oligopeptide-1 Alanyl Sr-Spider Oligopeptide-1 is a large water-soluble protein that sits on the surface of the skin without blocking pores. It contains no oily carriers or waxy residues that could trap sebum so it earns the lowest score on the scale.

This makes the ingredient suitable for acne-prone skin and for people who experience frequent breakouts.

The only caveat is that a finished product’s overall pore-clogging potential depends on the full formula. Heavy plant butters or certain silicones used alongside the peptide could change the final rating so always consider the complete ingredient list.

Summary

Sh-Oligopeptide-1 Alanyl Sr-Spider Oligopeptide-1 is a lab crafted peptide that protects skin by forming a light moisture veil, supporting barrier recovery and signaling a gentle renewal response. It does this through its hybrid sequence that marries growth factor-like segments with spider silk inspired motifs delivering both surface protection and subtle bioactivity.

While not yet a household name it has carved out a steady niche in modern serums, masks and eye creams where formulators appreciate its stability, vegan origin and compatibility with actives such as acids and antioxidants.

Current safety data shows low irritation potential and virtually no comedogenicity. Still, skin can be unpredictable so it is wise to patch test any new product that contains this peptide before full-face use.

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