Ingredient review

Lauraminopropionic Acid

INCI: Lauraminopropionic Acid

A gentle, amino-acid-based surfactant that cleanses without stripping the skin, making it ideal for sensitive or dry skin types.

beautyskincarecleanser

In plain English

Lauraminopropionic acid is a mild cleansing ingredient made from lauric acid (found in coconut oil) and an amino acid. It helps remove dirt and oil from your skin and hair without causing tightness or irritation. Because it's so gentle, it's often used in products for sensitive skin, babies, or people who find traditional cleansers too harsh.

Review score

Safety, usefulness, and evidence

4.0Good

4.0/ 5

Potentially useful with some tradeoffs

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

Useful, but context matters

Lauraminopropionic Acid 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 Lauraminopropionic Acid.
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

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

Lauraminopropionic acid is a surfactant derived from lauric acid (a fatty acid from coconut or palm kernel oil) and beta-alanine (an amino acid). It belongs to the class of amphoteric surfactants, meaning it can work in both acidic and alkaline conditions, and is known for its mildness and compatibility with other cleansing agents.

How it works

As a surfactant, lauraminopropionic acid reduces the surface tension between water and oils, allowing them to mix so that dirt and sebum can be rinsed away. Its amphoteric nature means it adjusts to the pH of the formula, helping to maintain a gentle, skin-friendly pH. It also produces a rich, creamy lather that feels soft on the skin.

Pros

Exceptionally gentle on skin

Unlike harsh sulfates, lauraminopropionic acid cleanses without stripping the skin's moisture barrier, reducing the risk of dryness and irritation.

pH-balanced cleansing

Its amphoteric nature helps maintain a skin-friendly pH, which supports a healthy microbiome and reduces the chance of post-cleansing tightness.

Cons and cautions

Potential sustainability issues

Lauraminopropionic acid is often derived from palm or coconut oil, and if not sourced responsibly, it can contribute to deforestation and habitat loss.

Less effective at removing heavy makeup

As a very mild surfactant, it may not be strong enough on its own to remove waterproof makeup or heavy sunscreen; often needs to be paired with other cleansers.

Best for

People with dry, sensitive, or easily irritated skin
Those looking for a sulfate-free, gentle cleanser
Individuals with eczema or rosacea who need mild cleansing

Use caution if

People with known allergies to coconut-derived ingredients (rare, but possible)

Usage tips

Look for it in the first half of the ingredient list for effective cleansing.

Pair with a gentle oil-based cleanser for double-cleansing if you wear heavy makeup or sunscreen.

Store products containing this ingredient in a cool, dry place to maintain stability.

Safety summary

Lauraminopropionic acid is considered safe for use in cosmetics at typical concentrations. It has a low irritation and sensitization potential, making it suitable for sensitive skin. No significant safety concerns have been identified in regulatory reviews.

Research notes

Studies and safety reviews by the Cosmetic Ingredient Review (CIR) panel confirm that lauraminopropionic acid is a mild, non-irritating surfactant. Research supports its use in gentle cleansing formulations, with no evidence of toxicity or skin sensitization at typical cosmetic levels.

Common label clues

Typical concentration: 1–15% in rinse-off products; lower in leave-on formulas
Regulatory status: Approved for use in cosmetics in the EU, US, and other major markets. The Cosmetic Ingredient Review (CIR) panel has deemed it safe as used in rinse-off and leave-on products.
Common uses: Facial cleansers, Body washes, Shampoos, Baby care products
Environmental note: Sourcing from certified sustainable palm or coconut oil can reduce environmental impact. Look for products with RSPO certification or similar.

Good to know

Lauraminopropionic acid is considered biodegradable and generally safe for aquatic life at typical use levels.
It is often used in 'no-tears' baby shampoos because of its low eye irritation potential.

Common questions

What is Lauraminopropionic Acid in beauty products?

What does Lauraminopropionic Acid do in a beauty product?

Is Lauraminopropionic Acid safe for most people?

Who should be careful with Lauraminopropionic Acid?

People with known allergies to coconut-derived ingredients (rare, but possible)

Research sources

Cosmetic Ingredient Review (CIR) Safety AssessmentOpen PubChem Compound SummaryOpen European Chemicals Agency (ECHA) InformationOpen

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.