Cocoyl Hydrolyzed Rice Protein: 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 24, 2025
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All information on this page is verified using The Personal Care Products Council's (PCPC) INCI database. Our ingredient analyses are based exclusively on PCPC's technical data to ensure accuracy and reliability.

What Is Cocoyl Hydrolyzed Rice Protein?

Cocoyl Hydrolyzed Rice Protein is a specialty ingredient created by joining two familiar natural sources: coconut oil and rice. Chemists first break down coconut oil into its fatty acids then convert these acids to an activated form called acid chloride. Separately, rice protein is hydrolyzed, meaning it is chopped into small peptides and amino acids. When the coconut acid chloride meets the hydrolyzed rice protein they bond to form a gentle surfactant peptide. The finished material holds a fatty chain from coconut and moisture loving fragments from rice so it can clean while also caring for skin and hair.

Early in the 2000s formulators looked for alternatives to harsh sulfates and discovered that coupling coconut acids with plant proteins gave a cleansing ingredient that felt milder and added conditioning benefits. Since then Cocoyl Hydrolyzed Rice Protein has shown up in a wide range of wash off and leave on products.

You will most often spot this ingredient in shampoos, conditioners, body washes, facial cleansers, baby bath products, leave in hair treatments and light moisturizing lotions where a balance of gentle cleansing and conditioning is desired.

Cocoyl Hydrolyzed Rice Protein’s Cosmetic Benefits/Uses

In formulas this multitasking ingredient offers several helpful roles

  • Cleansing: works as a mild surfactant that lifts dirt oil and product buildup while keeping the natural barrier intact so skin and hair feel comfortable
  • Hair Conditioning: rice derived peptides attach to the hair shaft to smooth rough areas boost strength reduce static and add a soft fuller look
  • Skin Conditioning: forms a light breathable film that helps lock in moisture and leaves skin feeling silky without a heavy residue

Who Can Use Cocoyl Hydrolyzed Rice Protein

This ingredient is considered compatible with dry, normal, combination and oily skin. Its mild nature and lightweight conditioning film make it unlikely to clog pores so even blemish-prone users usually tolerate it well. Those with very sensitive or allergy-prone skin should still check the full product label because irritation can occur if the formula contains added fragrance or strong preservatives.

Cocoyl Hydrolyzed Rice Protein comes from coconut oil and rice so it is plant-derived and suitable for vegans and vegetarians. No animal byproducts are involved in its manufacture.

Current safety data show no specific concerns for pregnant or breastfeeding women when the ingredient is used topically at typical cosmetic levels. This is not medical advice and anyone who is pregnant or nursing should discuss all personal care products with a healthcare professional to be safe.

The ingredient does not increase skin sensitivity to sunlight so there is no added risk of photosensitivity. It also plays well with common actives like vitamin C, retinoids and exfoliating acids, making it a flexible choice in multi-step routines.

Potential Side Effects/Adverse Reactions

Responses to topical Cocoyl Hydrolyzed Rice Protein differ from person to person. The points below list potential reactions yet most users will not experience them when the product is well formulated and used as directed.

  • Redness or stinging in very sensitive skin
  • Mild contact dermatitis in individuals allergic to coconut or rice derivatives
  • Eye irritation if the product accidentally gets into the eyes
  • Scalp or skin dryness if the formula has an imbalanced pH or is left on for prolonged periods

If any uncomfortable reaction occurs stop use immediately and consult a healthcare provider or dermatologist for guidance

Comedogenic Rating

Rating: 1/5

Cocoyl Hydrolyzed Rice Protein carries a very low risk of clogging pores because its fatty chain is bonded to water loving rice peptides, creating a molecule that rinses clean without leaving a heavy oily film. Unlike pure coconut oil which can rank higher on the comedogenic scale, this modified form is water dispersible and used at modest percentages in rinse off or lightweight leave on products.

Suitable for acne prone or breakout prone skin in most cases.

The final formula still matters; very rich creams or balms that include this ingredient alongside heavier oils could raise the overall pore clogging potential.

Summary

Cocoyl Hydrolyzed Rice Protein acts as a gentle cleanser, hair conditioner and skin conditioner. Its coconut derived fatty portion lifts away dirt while the rice peptide side binds to hair and skin, forming a light film that smooths strands, reduces static and helps skin hold moisture.

The ingredient has carved out a quiet niche in sulfate free shampoos, baby washes, mild facial cleansers and some leave in conditioners. It is not yet a buzzword on product labels but formulators value its multitasking nature and plant based origin.

Current research shows it is safe for topical use with a very low rate of irritation or sensitization. As with any new cosmetic ingredient it is wise to perform a patch test when trying a product that contains it, especially if you have sensitive or reactive skin.

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