Oligopeptide-71: 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-71?

Oligopeptide-71 is a lab made chain of 12 amino acids built from alanine, arginine, aspartic acid, histidine, leucine, proline, threonine and tryptophan. Peptide technology grew popular in skin care in the early 2000s when researchers learned that short strings of amino acids could signal the skin to look and feel healthier. Since then brands have created many tailored peptides, and Oligopeptide-71 is one of the newer options chosen for its skin comforting properties.

Manufacturing starts with individual amino acids that are linked together through controlled, step by step reactions called solid phase peptide synthesis. This process allows chemists to build the precise sequence every time, keeping purity high and contamination low. Once the chain is complete it is purified, dried and added to cosmetic formulas as a concentrated solution or fine powder.

You will most often see Oligopeptide-71 in leave-on products where extended contact time lets the peptide do its job. Typical formats include lightweight serums, eye creams, anti aging moisturizers, sheet masks, sleeping masks and post procedure soothing gels. Brands also blend it into daily lotions and primers for people who prefer multitasking products.

Oligopeptide-71’s Cosmetic Benefits/Uses

This ingredient has one main role in skin care formulas.

As a skin conditioning agent, Oligopeptide-71 helps the surface of the skin feel softer and look smoother. By supporting the natural barrier it can also improve hydration levels, which in turn may reduce the appearance of fine lines caused by dryness.

Who Can Use Oligopeptide-71

Oligopeptide-71 is gentle enough for most skin types including normal, oily, dry, combination and sensitive because it focuses on surface conditioning rather than strong exfoliation or deep resurfacing. Those with very reactive or highly compromised skin should still introduce it slowly, as any new ingredient can cause unexpected responses.

The peptide is made entirely from synthesized amino acids with no animal derived materials so it is suitable for vegans and vegetarians.

Current data shows no specific risks linked to topical Oligopeptide-71 during pregnancy or while breastfeeding. That said, this is not medical advice and expectant or nursing parents should always review new products with their physician to be safe.

The molecule does not increase photosensitivity so there is no added risk of sunburn from daytime use, although daily sunscreen remains important for overall skin health.

Potential Side Effects/Adverse Reactions

Responses to any cosmetic ingredient differ from person to person. The points below outline potential side effects of topical Oligopeptide-71, but most users who apply a well formulated product will not experience them.

  • Mild redness or warmth shortly after application
  • Temporary itching or tingling in sensitive areas
  • Localized dryness if the formula lacks sufficient moisturizers
  • Small surface breakouts in acne-prone skin when paired with rich occlusive bases
  • Allergic contact dermatitis in individuals sensitive to specific amino acid sequences or preservatives used alongside the peptide

If any persistent irritation or unexpected reaction occurs, stop using the product and consult a healthcare professional or dermatologist for guidance.

Comedogenic Rating

Rating: 0 / 5

Oligopeptide-71 is a small, water-soluble molecule that does not contain heavy oils or waxes known to clog pores. It sits lightly on the skin, absorbs quickly and is typically used at low concentrations, all of which keep its pore-blocking potential virtually nonexistent.

This makes the peptide well suited for people who are prone to acne or breakouts.

Keep in mind the overall formula still matters; if the product pairs Oligopeptide-71 with rich occlusive ingredients the finished blend could be more comedogenic than the peptide alone.

Summary

Oligopeptide-71 is a lab crafted 12-amino-acid peptide valued for its skin conditioning ability. By supporting the surface barrier it helps skin feel softer, look smoother and hold moisture better which can lessen dryness lines.

The peptide is not yet a household name like retinol or vitamin C but it appears more often in targeted serums and soothing creams as brands explore new peptide technologies.

Current data shows it is generally safe for all skin types with a very low risk of irritation or pore clogging, though reactions can vary from person to person. As with any new skincare ingredient, do a quick patch test before adding a full-size product to your routine.

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