Ingredient review
Potassium Lauroyl Hydrolyzed Pea Protein
INCI: POTASSIUM LAUROYL HYDROLYZED PEA PROTEIN
A mild, amino-acid-based surfactant that cleanses without stripping the skin barrier.
In plain English
This ingredient is a gentle cleanser made by combining lauric acid (from coconut or palm oil) with hydrolyzed pea protein. It works like a soap but is much kinder to your skin because it has a similar pH to your skin's natural level and doesn't remove too many natural oils. It's often used in sulfate-free cleansers and is a good choice for sensitive or dry skin.
Review score
Safety, usefulness, and evidence
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
Quick decision guide
Easy yes for most routines
Potassium Lauroyl Hydrolyzed Pea 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.
- Step 1Start with the score, then check the irritation and clogging risk before judging Potassium Lauroyl Hydrolyzed Pea Protein.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- 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
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A semi-synthetic surfactant created by chemically bonding lauric acid (a fatty acid from coconut or palm oil) to hydrolyzed pea protein. The result is a mild cleansing molecule that can lift dirt and oil from the skin without disrupting the skin barrier.
How it works
In a cosmetic product, this ingredient acts as a surfactant: one end of the molecule attracts water, and the other end attracts oil and dirt. When you rinse, it helps wash away impurities. Because it is derived from amino acids (the building blocks of protein), it is less likely to cause irritation compared to traditional soaps or sulfates.
Pros
Very gentle on skin
Its mild cleansing action helps preserve the skin's natural oils, making it ideal for daily use on sensitive or dry skin.
Plant-based and biodegradable
Derived from renewable sources (pea protein and coconut/palm oil), it is more environmentally friendly than many synthetic surfactants.
Cons and cautions
Lower foam volume
It produces a creamy, low foam rather than a rich lather, which may not appeal to those who associate foam with cleanliness.
Potential allergen for pea allergy
Although rare, individuals with a known allergy to peas should check labels carefully before use.
Best for
- People with dry or sensitive skin
- Those looking for sulfate-free cleansers
- Anyone with eczema or rosacea-prone skin
Use caution if
- Individuals with known pea allergy (rare)
- Those who prefer high-foam cleansers
Usage tips
Safety summary
Considered safe for use in cosmetics at typical concentrations. Extremely low irritation and sensitization potential. No known toxicity concerns.
Research notes
Amino-acid surfactants like this one are well-studied for mildness and skin compatibility. Pea protein derivatives are less common but share the same safety profile as other amino-acid surfactants.
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 a cosmetic ingredient). No known restrictions.
- Common uses
- Facial cleansers, Body washes, Shampoos, Baby care products
- Environmental note
- Biodegradable and derived from renewable plant sources, though palm oil sourcing may raise sustainability concerns. Look for RSPO-certified palm derivatives.
Good to know
- This ingredient is often listed as 'Potassium Lauroyl Hydrolyzed Pea Protein' on labels.
- It is part of the amino-acid surfactant family, known for being pH-friendly to skin.
Common questions
What is Potassium Lauroyl Hydrolyzed Pea Protein in beauty products?
This ingredient is a gentle cleanser made by combining lauric acid (from coconut or palm oil) with hydrolyzed pea protein. It works like a soap but is much kinder to your skin because it has a similar pH to your skin's natural level and doesn't remove too many natural oils. It's often used in sulfate-free cleansers and is a good choice for sensitive or dry skin.
What does Potassium Lauroyl Hydrolyzed Pea Protein do in a beauty product?
In a cosmetic product, this ingredient acts as a surfactant: one end of the molecule attracts water, and the other end attracts oil and dirt. When you rinse, it helps wash away impurities. Because it is derived from amino acids (the building blocks of protein), it is less likely to cause irritation compared to traditional soaps or sulfates.
Is Potassium Lauroyl Hydrolyzed Pea Protein safe for most people?
Considered safe for use in cosmetics at typical concentrations. Extremely low irritation and sensitization potential. No known toxicity concerns.
Who should be careful with Potassium Lauroyl Hydrolyzed Pea Protein?
Individuals with known pea allergy (rare) Those who prefer high-foam cleansers
Research sources
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.