Ingredient review

Potassium Cocoyl Hydrolyzed Rice Bran Protein

INCI: POTASSIUM COCOYL HYDROLYZED RICE BRAN PROTEIN

A mild, plant-derived cleansing ingredient that effectively removes dirt and oil while being gentle enough for sensitive skin.

beautyskincarecleanser

In plain English

This ingredient is a gentle cleanser made by combining rice bran protein (a byproduct of rice milling) with coconut oil fatty acids. It helps wash away dirt, oil, and makeup without stripping your skin's natural moisture barrier. Because it's derived from natural sources and is very mild, it's often used in products for sensitive or dry skin.

Review score

Safety, usefulness, and evidence

4.3Good
4.3/ 5

Strong fit for many routines

The evidence base is useful, but some claims depend heavily on the formula.

Risk flags are low for most users, though the finished product can still irritate.

Source
semi synthetic
Evidence
moderate
Irritation
low
Clogging risk
low
How reviews are scored

Quick decision guide

Easy yes for most routines

Potassium Cocoyl Hydrolyzed Rice Bran Protein is generally a lower-concern ingredient when the full formula suits your skin.

Plain-English read

Treat this as a practical screening step before you compare products that contain this ingredient.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Potassium Cocoyl Hydrolyzed Rice Bran Protein.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.

Score terms in plain English

Irritation risk

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

Potassium Cocoyl Hydrolyzed Rice Bran Protein is a surfactant, meaning it helps water mix with oil and dirt so they can be rinsed away. It's created by reacting rice bran protein with coconut fatty acids and then neutralizing with potassium hydroxide. The result is a mild, biodegradable cleansing agent.

How it works

In a cleanser, this ingredient reduces the surface tension of water, allowing it to penetrate oils and lift away impurities. Its protein component also helps it bind to the skin, leaving a subtle conditioning effect that can reduce tightness after washing.

Pros

Very gentle on skin

Unlike harsh sulfates, this ingredient cleans without stripping the skin's natural oils, making it ideal for daily use on dry or sensitive skin.

Conditioning effect

The protein component leaves a light film on the skin that helps reduce post-wash tightness and supports moisture retention.

Cons and cautions

Lower cleansing power

It may not thoroughly remove heavy makeup or waterproof sunscreen on its own, often requiring a double-cleansing routine.

Less foam

Some users prefer a rich lather; this ingredient produces a mild, creamy foam that may feel less satisfying to those used to sulfate-based cleansers.

Best for

  • People with dry or sensitive skin looking for a gentle cleanser
  • Anyone seeking a sulfate-free, plant-derived cleansing option

Use caution if

  • Individuals with known allergies to rice or coconut derivatives (rare)

Usage tips

Use as part of a double-cleansing routine if you wear heavy makeup or sunscreen.
Pair with a moisturizer after cleansing to lock in hydration.
Store products containing this ingredient in a cool, dry place to maintain stability.

Safety summary

Potassium Cocoyl Hydrolyzed Rice Bran Protein is considered safe for cosmetic use with a low irritation and comedogenic risk. It is well-tolerated by most skin types, including sensitive skin. Allergic reactions are very rare but possible in individuals with specific rice or coconut allergies.

Research notes

While specific studies on this exact ingredient are limited, the safety of hydrolyzed rice protein and fatty acid-based surfactants is well-established. The Cosmetic Ingredient Review (CIR) panel has deemed similar protein-derived surfactants safe for use in cosmetics. Its mildness is supported by its widespread use in baby and sensitive-skin products.

Common label clues

Typical concentration
1–10% in rinse-off products
Regulatory status
Approved for use in cosmetics globally, including by the EU CosIng database and the US FDA (as part of generally recognized safe surfactants).
Common uses
Facial cleansers, Body washes, Shampoos, Baby care products
Environmental note
Derived from renewable rice bran and coconut oil, this ingredient is biodegradable and has a lower environmental impact compared to petroleum-based surfactants.

Good to know

  • This ingredient is often listed as 'Potassium Cocoyl Hydrolyzed Rice Protein' on labels.
  • It is considered safe for use in leave-on products at low concentrations, but is most common in rinse-off cleansers.

Common questions

What is Potassium Cocoyl Hydrolyzed Rice Bran Protein in beauty products?

This ingredient is a gentle cleanser made by combining rice bran protein (a byproduct of rice milling) with coconut oil fatty acids. It helps wash away dirt, oil, and makeup without stripping your skin's natural moisture barrier. Because it's derived from natural sources and is very mild, it's often used in products for sensitive or dry skin.

What does Potassium Cocoyl Hydrolyzed Rice Bran Protein do in a beauty product?

In a cleanser, this ingredient reduces the surface tension of water, allowing it to penetrate oils and lift away impurities. Its protein component also helps it bind to the skin, leaving a subtle conditioning effect that can reduce tightness after washing.

Is Potassium Cocoyl Hydrolyzed Rice Bran Protein safe for most people?

Potassium Cocoyl Hydrolyzed Rice Bran Protein is considered safe for cosmetic use with a low irritation and comedogenic risk. It is well-tolerated by most skin types, including sensitive skin. Allergic reactions are very rare but possible in individuals with specific rice or coconut allergies.

Who should be careful with Potassium Cocoyl Hydrolyzed Rice Bran Protein?

Individuals with known allergies to rice or coconut derivatives (rare)

Research sources

Cosmetic Ingredient Review (CIR) - Safety of Protein DerivativesOpenEU CosIng Database - Potassium Cocoyl Hydrolyzed Rice ProteinOpenPubMed - Mild Surfactants for Sensitive SkinOpen

Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.