Oligopeptide-101 Amide: 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
Share:
Inside this article:

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 Oligopeptide-101 Amide?

Oligopeptide-101 Amide is a lab-made chain of 23 amino acids capped with an amide group at one end. The chain includes simple building blocks such as alanine, arginine, glycine, histidine, isoleucine, leucine, lysine, phenylalanine, serine and valine. Because it is synthetic there is no animal or plant source; instead it is produced through solid-phase peptide synthesis, a step-by-step method that links one amino acid to the next then finishes the strand with an amide to boost stability and skin compatibility.

Interest in short peptides for skincare took off in the early 2000s when researchers saw how targeted amino acid sequences could prompt the skin to behave in youthful ways. Oligopeptide-101 Amide was developed to tap into that promise, with extra focus on managing excess oil and guarding against environmental stress. Today formulators include it in light serums, leave-on toners, gel moisturizers, sheet masks and targeted anti-blemish treatments where a non-heavy texture is preferred.

Oligopeptide-101 Amide’s Cosmetic Benefits/Uses

When added to a skincare formula Oligopeptide-101 Amide offers several perks at once, making it a flexible choice for modern products.

  • Anti-Sebum – Helps balance oil production so skin feels fresher and looks less shiny which supports a smoother makeup application and may reduce the chance of clogged pores
  • Antimicrobial – Limits the growth of surface bacteria that can trigger breakouts or dullness keeping the complexion clearer between cleanses
  • Antioxidant – Neutralizes everyday free radicals from pollution and UV exposure helping to ward off early signs of aging such as dull tone and fine lines
  • Skin Protecting – Strengthens the skin’s surface barrier so moisture stays in and irritants stay out leading to better overall comfort and resilience

Who Can Use Oligopeptide-101 Amide

Thanks to its light texture and multitasking profile Oligopeptide-101 Amide suits most skin types including oily, combination, normal and even sensitive skin that often reacts to heavy or fragrant formulas. Very dry skin may want to pair it with richer moisturizers because the peptide itself does not deliver deep hydration.

The ingredient is produced entirely in the lab with no animal or plant derivatives so it is appropriate for vegans and vegetarians.

Current research shows no specific risks for pregnant or breastfeeding women when the peptide is applied topically at the strengths found in cosmetics. Still this is not medical advice and anyone who is expecting or nursing should show the full ingredient list of their products to a doctor or midwife before use to be safe.

Oligopeptide-101 Amide does not make skin more sensitive to sunlight so there is no special rule about daytime use beyond the usual recommendation to wear sunscreen every morning.

Potential Side Effects/Adverse Reactions

Reactions to topical Oligopeptide-101 Amide differ from person to person. The points below outline potential side effects that could occur yet they are uncommon when the ingredient is used at proper cosmetic levels.

  • Temporary redness or warmth
  • Mild itching or tingling
  • Rare allergic contact dermatitis in those sensitive to peptides
  • Stinging if applied to broken or freshly exfoliated skin

If any of these effects appear and do not settle quickly discontinue use and consult a healthcare professional or dermatologist.

Comedogenic Rating

Rating: 0/5

Oligopeptide-101 Amide is a small, water-soluble peptide that contains no heavy oils, waxes or butters so it does not linger in pores or form an occlusive film. Because it is lab made and highly purified, impurities that might clog pores are removed during production. For these reasons it earns a solid non-comedogenic score of 0.

This makes the ingredient suitable for skin that is prone to acne or frequent breakouts.

Its ability to help control excess sebum and limit surface bacteria can further support a clearer complexion when combined with a balanced skincare routine.

Summary

Oligopeptide-101 Amide works as an anti-sebum, antimicrobial, antioxidant and skin-protecting agent. By sending targeted signals to the skin it helps regulate oil output, discourages acne-causing microbes, neutralizes everyday free radicals and reinforces the surface barrier so moisture stays put.

Although peptides like this are still considered niche compared with classics such as vitamin C or retinol, they have been gaining steady attention in lightweight serums, gel moisturizers and blemish control products thanks to their multitasking nature and gentle feel.

Current evidence shows the ingredient is low risk for irritation or systemic harm when used at normal cosmetic levels. As with any new product it is wise to perform a small patch test first to ensure personal compatibility.

Was this article helpful?
More from Glooshi:
ADVERTISEMENT
Get all our top headlines in beauty.
Delivered right to your inbox each week. Zero spam, all goodness, opt-out at anytime.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Get the latest beauty news, top product recommendations & brand-exclusive discount codes direct to your inbox.
Send good feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Send bad feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Search