Hydrolyzed Pea: 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 27, 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 Hydrolyzed Pea?

Hydrolyzed Pea is a plant-based ingredient made by breaking down pea seeds (Pisum sativum) into smaller protein fragments called peptides. Peas have long been valued as a food crop and their proteins caught the attention of cosmetic chemists looking for gentle sustainable alternatives to animal-derived ingredients. Once scientists discovered that pea peptides could hold water and feel smooth on the skin the cosmetic industry began adding them to everyday formulas.

The production process starts with cleaned shelled peas that are milled into flour. The proteins are isolated then treated with water and enzymes in a controlled environment. This enzymatic “hydrolysis” cuts the large proteins into smaller pieces that dissolve easily in water and penetrate the upper layers of skin. The resulting liquid or powder is filtered, dried and standardized for use in cosmetics.

Hydrolyzed Pea appears in a wide range of products including lightweight serums, hydrating creams, sheet masks, after-sun lotions and anti-aging blends. Brands favor it for its vegan origin, soft feel and compatibility with both rinse-off and leave-on formulas.

Hydrolyzed Pea’s Cosmetic Benefits/Uses

In skin care formulas Hydrolyzed Pea is valued for one main role.

Skin conditioning: The short pea peptides attract and bind water, helping skin stay moist and comfortable. They can form a thin flexible film that smooths the surface, giving a softer touch and a healthier-looking glow. Because the peptides are small they absorb quickly without a greasy feel, making them suitable for products meant to hydrate, soothe and improve skin texture.

Who Can Use Hydrolyzed Pea

Hydrolyzed Pea is considered gentle enough for most skin types. Dry and mature skin appreciate its water-binding ability while oily and combination skin benefit from its light non-greasy texture. Sensitive skin generally tolerates it well because it lacks common irritants though anyone with a known pea or legume allergy should proceed carefully.

The ingredient is plant derived with no animal by-products so it suits vegans and vegetarians who prefer cruelty-free choices.

No specific concerns have been raised for women who are pregnant or breastfeeding. That said this is not medical advice and expectant or nursing mothers should show any skincare product to their doctor before use just to be safe.

Hydrolyzed Pea does not increase photosensitivity so it can be used day or night without raising the risk of sunburn.

Potential Side Effects/Adverse Reactions

Reactions to topical Hydrolyzed Pea vary from person to person. The points below list potential side effects that are possible yet unlikely for most users when the ingredient is formulated correctly.

  • Allergic reaction in individuals with pea or other legume allergies leading to redness itching or swelling
  • Skin irritation such as mild burning or stinging especially in very sensitive skin or when combined with strong actives
  • Rare breakouts in acne-prone skin if the overall formula is heavy or occlusive

If you notice any discomfort stop using the product and consult a healthcare professional.

Comedogenic Rating

Rating: 1 (very low likelihood of clogging pores)

Hydrolyzed Pea is made up of small water-soluble peptides that sit lightly on the skin rather than forming a thick oily film. It is usually added to formulas for its hydrating and smoothing qualities, not for occlusion, so it rarely traps oil or debris inside pores. Because the ingredient itself has almost no oil content its pore-clogging potential is considered minimal.

Suitable for people who are prone to acne or breakouts, though overall product composition still matters.

No special storage or usage issues affect its comedogenic profile, and the rating stays low across rinse-off and leave-on products.

Summary

Hydrolyzed Pea is a plant-based skin conditioner that pulls in water, softens rough patches and leaves a smooth, light finish. It does this by using short pea peptides that bond with moisture and form a breathable film on the surface of the skin.

While not as famous as hyaluronic acid or glycerin it is gaining steady popularity among brands looking for vegan eco-friendly options that also feel pleasant to wear. Its low allergy rate, negligible comedogenicity and compatibility with most skin types make it an easy add-on in everyday skincare.

Overall safety is high with irritation or allergy being rare and mainly linked to pre-existing legume sensitivities. As with any new ingredient it is wise to do a small patch test when trying a product that contains Hydrolyzed Pea to make sure your skin agrees with it.

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