Butyroyl Sh-Pentapeptide-12 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 23, 2025
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All information on this page is verified using publicly available nomenclature standards and reference materials from The Personal Care Products Council (PCPC) and the European Commission's CosIng database. Our analyses are based on technical data from these sources to ensure accuracy and reliability.

What Is Butyroyl Sh-Pentapeptide-12 Sp?

Butyroyl Sh-Pentapeptide-12 Sp is a lab-crafted peptide, which means it is a short chain of amino acids designed to mimic or enhance the skin’s own building blocks. The butyroyl group attached to the peptide helps it better interact with skin lipids, while the “Sh” prefix indicates it is a synthetic human-identical sequence. Developed in the early 2000s as peptide technology moved from medical research into beauty labs, this ingredient quickly drew interest for its ability to condition skin without the heaviness of oils. Production starts with fermenting plant-derived sugars to create individual amino acids, which are then linked together in a controlled reactor. The finished peptide is purified, stabilized in a powder or solution and added to cosmetic bases. Today you will most often spot it in lightweight serums, anti-aging moisturizers, firming eye creams, sheet masks and leave-on treatments that aim to smooth texture and support a fresher appearance.

Butyroyl Sh-Pentapeptide-12 Sp’s Cosmetic Benefits/Uses

In formulas, Butyroyl Sh-Pentapeptide-12 Sp serves one main purpose: skin conditioning. By helping the surface of the skin hold moisture and feel softer, it supports a smoother look and touch. Over time consistent use may improve suppleness, reduce the appearance of fine lines caused by dryness and leave the complexion looking more resilient.

Who Can Use Butyroyl Sh-Pentapeptide-12 Sp

This peptide suits most skin types, including normal, dry, oily and combination skin, because it conditions without adding heavy oil or clogging pores. Sensitive skin usually tolerates it well thanks to its low irritation profile, though anyone with a known allergy to peptides or preservative systems in the finished product should proceed with care.

Because the amino acids are produced from plant-derived sugars and the finished material contains no animal by-products, it is considered appropriate for both vegans and vegetarians.

No data suggest specific risks for women who are pregnant or breastfeeding. Still, research on topical peptides in these groups is limited, so this information is not medical advice. Expectant or nursing mothers should check with a qualified healthcare professional before introducing any new skincare product.

Butyroyl Sh-Pentapeptide-12 Sp does not increase photosensitivity, so it can be used morning or night. Standard daytime sun protection is still recommended for overall skin health.

Potential Side Effects/Adverse Reactions

Responses to topical Butyroyl Sh-Pentapeptide-12 Sp differ from person to person. The points below outline possible but uncommon reactions when the ingredient is used as directed in a well-formulated product.

Redness or mild stinging

Itching or tightness in very reactive skin

Contact dermatitis triggered by other formula components rather than the peptide itself

If any of these issues occur, discontinue use and consult a medical professional for guidance.

Comedogenic Rating

Rating: 0 out of 5

Butyroyl Sh-Pentapeptide-12 Sp is a small, water-soluble peptide without heavy oils or waxes, so it does not create the kind of film that blocks pores. It breaks down into individual amino acids on the skin and rinses away easily, leaving almost no residue that could trap sebum or debris.

Suitability for acne-prone skin: generally safe and unlikely to trigger breakouts.

Keep in mind that the finished product’s texture, added oils, and thickeners can change how pore-clogging the overall formula is, even if the peptide itself scores a zero.

Summary

Butyroyl Sh-Pentapeptide-12 Sp is mainly a skin-conditioning peptide that helps bind moisture, soften rough patches, and lend a smoother, plumper look. It does this by mimicking natural amino acid sequences that support the skin’s surface, encouraging a more resilient feel without heaviness.

The ingredient enjoys modest popularity in modern serums and eye creams aimed at early signs of aging. While not as mainstream as hyaluronic acid or vitamin C, it is steadily gaining traction among brands that focus on gentle peptide technology.

Overall safety is high, with a very low irritation and comedogenic profile, making it suitable for most skin types including sensitive and acne-prone. As with any new skincare product, patch testing is wise before full-face use to confirm personal tolerance.

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