Oligopeptide-158 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
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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 Oligopeptide-158 Amide?

Oligopeptide-158 Amide is a lab made chain of 12 amino acids finished with an amide group. The chain blends common building blocks the body already knows such as glutamic acid, glycine, isoleucine, leucine, lysine and serine. Chemists design it on demand rather than harvest it from animals or plants which keeps quality steady and side steps supply limits. It was first explored by peptide researchers looking for gentler ways to manage excess face oil without the stinging that strong acids or alcohols can bring. The peptide is put together through solid phase peptide synthesis where each amino acid is added one at a time then the amide cap is secured at the end. After cleaning and testing it becomes a white powder that dissolves easily in water based formulas. You will often spot it in lightweight serums, oil control moisturizers, mattifying primers, sheet masks and leave on treatments aimed at shiny or breakout prone skin.

Oligopeptide-158 Amide’s Cosmetic Benefits/Uses

This peptide’s main role is to help balance surface oil for a fresher look. By signaling the skin to dial down sebum production it can reduce midday shine, help makeup last longer and make pores appear smaller over time. Its gentle nature also means it can be paired with soothing hydrators so users get a matte finish without feeling dry.

Who Can Use Oligopeptide-158 Amide

Most skin types can benefit from this oil balancing peptide. Oily and combination complexions tend to see the greatest payoff because it helps keep shine in check. Normal skin can also use it for occasional T-zone control. Dry or very sensitive skin usually tolerates it well since the ingredient is mild and water-based, though those groups may find it unnecessary if excess oil is not a concern.

Oligopeptide-158 Amide is made entirely in the lab from individual amino acids so it contains no animal derived material. That makes it suitable for both vegans and vegetarians.

There is no specific evidence suggesting problems for pregnant or breastfeeding women when the peptide is applied topically at cosmetic levels. Still, this is not medical advice and anyone who is expecting or nursing should clear all skincare products with a qualified healthcare professional for peace of mind.

The peptide does not make skin more sensitive to the sun so it is safe for daytime use without adding extra risk of sunburn. Routine sunscreen habits should still be followed for overall skin health.

Potential Side Effects/Adverse Reactions

Responses to topical Oligopeptide-158 Amide vary from person to person. The issues below are possible outcomes yet they are uncommon when the ingredient is used in well-formulated products under normal conditions.

  • Mild stinging or tingling on first application
  • Temporary redness or warmth in the treated area
  • Rare allergic reaction leading to itching, swelling or rash
  • Interaction with very low pH products which could reduce peptide stability and effectiveness

If any persistent irritation or unexpected reaction occurs discontinue use and seek advice from a healthcare professional.

Comedogenic Rating

Rating: 0 (non-comedogenic). Oligopeptide-158 Amide is a small water-soluble peptide that does not leave an occlusive film or add extra oil to the skin, so it has virtually no tendency to block pores. This makes it suitable for people who are prone to acne or breakouts. As a bonus, its oil-regulating action can even help keep pores clearer over time. No concerns have been raised about it triggering fungal acne or interacting negatively with common acne treatments.

Summary

Oligopeptide-158 Amide is an anti-sebum peptide that tells the skin to temper oil output which helps reduce shine, refine the look of pores and keep makeup in place. It does this with targeted cell signalling rather than harsh drying agents so it delivers a matte finish without stripping moisture. The ingredient is still a niche player in formulas, mostly seen in specialized oil-control serums and primers, but interest is growing as brands look for gentler alternatives to alcohols and clays.

Current safety data show it is low risk for irritation, non-comedogenic and appropriate for most skin types including sensitive and acne-prone. As with any new skincare product a quick patch test is wise to rule out unexpected reactions.

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