Oligopeptide-142: 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-142?

Oligopeptide-142 is a lab made chain of 16 amino acids built from familiar building blocks such as alanine, arginine, isoleucine, leucine, lysine, phenylalanine, proline, serine and tryptophan. Because it is synthetic, scientists can design it to be highly pure and consistent from batch to batch. The peptide first drew attention in the early 2000s when researchers looked for small molecules that could guide skin cells to act as if they were younger. Using solid phase peptide synthesis, chemists add one amino acid at a time to a growing chain, rinse away leftovers, then repeat until the full sequence is finished. After purification and safety checks the final white powder is blended into water based cosmetic formulas.

You will most often spot Oligopeptide-142 in targeted serums, brightening creams, sheet masks, under eye gels and other leave-on products aimed at improving overall skin tone and texture. Its compact size lets it sit comfortably in lightweight fluids so it can be used in both day and night treatments without feeling heavy.

Oligopeptide-142’s Cosmetic Benefits/Uses

Oligopeptide-142 is prized mainly for one key role in skincare.

Skin conditioning: This peptide helps skin feel smoother, look more even and stay better hydrated. By nudging surface cells to renew themselves in a balanced way it can soften the look of dark spots and leave the complexion with a fresher brighter finish. When paired with moisturizers and antioxidants it supports a healthier barrier which in turn makes skin more resilient against daily stress.

Who Can Use Oligopeptide-142

Oligopeptide-142 tends to play well with every major skin type including dry, normal, combination and oily since it is lightweight, water soluble and non-occlusive. Sensitive complexions usually tolerate it too because the peptide has no fragrance or exfoliating action that might provoke stinging. There are no known reasons for acne-prone or rosacea-prone users to avoid it, though as with any new active, individual tolerance can differ.

The peptide is produced entirely in the lab from basic amino acid building blocks, so it contains no animal-derived materials. That makes finished products featuring Oligopeptide-142 suitable for vegans and vegetarians provided the rest of the formula also meets those lifestyle criteria.

Current safety data have not flagged any specific concerns for women who are pregnant or breastfeeding. Still, this information is not medical advice and anyone expecting or nursing should run their whole skincare routine past a qualified healthcare professional just to be sure.

Oligopeptide-142 does not increase photosensitivity, so it can be used morning or night. Standard daytime sun protection is still recommended to keep all skin-conditioning efforts from being undone by UV damage.

Potential Side Effects/Adverse Reactions

Responses to topical Oligopeptide-142 vary from person to person. The points below outline potential side effects that could occur even though most users enjoy smooth sailing when the ingredient is formulated and used correctly.

  • Mild redness or warmth
  • Temporary itching or tingling on application
  • Localized dryness if combined with strong exfoliants or alcohol heavy formulas
  • Rare allergic contact dermatitis presenting as persistent rash or swelling
  • Occasional clogged pores in very oil-rich formulations despite the peptide itself being noncomedogenic
  • Increased irritation when layered with high dose retinoids or acids due to cumulative stress on the skin barrier

If any unwanted reaction shows up stop using the product and consult a healthcare professional for guidance.

Comedogenic Rating

Comedogenic rating: 0/5

Oligopeptide-142 is water soluble and lightweight, so it does not form an occlusive film that can trap oil or debris inside pores. It contains no fatty acids or waxes that typically raise the risk of breakouts. For these reasons it earns the lowest possible rating on the comedogenic scale.

This makes the peptide generally suitable for acne-prone or breakout-prone skin, provided the rest of the formula is also non-comedogenic. If the product pairs the peptide with heavy oils or butters the overall risk could rise even though the peptide itself remains benign.

One extra point to note is that some testing blends use silicone or lipid carriers to improve texture. While most silicones are low risk, very oily skin types should still glance at the full ingredient list to be sure the supporting ingredients match their needs.

Summary

Oligopeptide-142 is a lab crafted 16-amino-acid peptide valued for its skin-conditioning talent. By guiding surface cells to renew at a steady pace and helping the barrier hold water, it smooths texture, brightens tone and leaves skin feeling comfortably hydrated.

It is not yet a headline star like niacinamide or hyaluronic acid, but it is quietly gaining ground in targeted serums and brightening treatments thanks to the growing interest in peptide technology.

Current data show Oligopeptide-142 to be safe for all skin types with minimal risk of irritation or clogged pores. As with any new skincare ingredient it is smart to patch test a fresh product before making it a daily habit to confirm personal compatibility.

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