Ingredient review

Sodium Lauroyl Hydroxyethyl Beta-Alaninate

INCI: Sodium Lauroyl Hydroxyethyl Beta-Alaninate

A gentle, amino-acid-based surfactant that cleanses effectively without over-drying, making it ideal for sensitive or dry skin.

beautyskincarecleanser

In plain English

This is a mild cleansing ingredient derived from amino acids (the building blocks of proteins) and fatty acids from coconut or palm oil. It works by helping water mix with oil and dirt so they can be rinsed away, but it does so without stripping your skin's natural moisture barrier. Think of it as a kinder alternative to harsh soaps that can leave your face feeling tight and dry.

Review score

Safety, usefulness, and evidence

4.5Excellent
4.5/ 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
synthetic
Evidence
moderate
Irritation
low
Clogging risk
low
How reviews are scored

Quick decision guide

Easy yes for most routines

Sodium Lauroyl Hydroxyethyl Beta-Alaninate 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 Sodium Lauroyl Hydroxyethyl Beta-Alaninate.
  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

Sodium Lauroyl Hydroxyethyl Beta-Alaninate is a synthetic surfactant made from beta-alanine (an amino acid) and lauric acid (a fatty acid found in coconut or palm oil). It belongs to the family of amino-acid surfactants, known for their gentle cleansing properties and compatibility with sensitive skin.

How it works

In a cleanser, this ingredient reduces the surface tension between water and oil, allowing dirt, makeup, and excess sebum to be emulsified and rinsed away. Its molecular structure is larger and less penetrating than traditional sulfate surfactants, so it cleanses the skin's surface without disrupting the lipid barrier or causing irritation.

Pros

Gentle on skin

Its large molecular structure means it cleanses without penetrating or stripping the skin barrier, reducing the risk of irritation and dryness.

Maintains hydration

Unlike harsh sulfates, this surfactant helps skin retain moisture after washing, leaving it soft and comfortable rather than tight.

Cons and cautions

Moderate lather

It produces a creamy, low-to-moderate foam, which may feel less satisfying to those accustomed to the big bubbles of sulfate-based cleansers.

Synthetic processing

Although derived from natural amino acids and fatty acids, it is chemically synthesized, which may not align with a 'natural-only' ingredient philosophy.

Best for

  • People with dry, sensitive, or reactive skin
  • Those looking for a sulfate-free, gentle daily cleanser

Use caution if

  • Individuals who prefer a very foamy, high-lather cleansing experience (this produces a moderate, creamy lather)

Usage tips

Use in a double-cleansing routine: follow an oil-based cleanser with a water-based cleanser containing this surfactant for thorough yet gentle removal of all impurities.
Avoid using with very hot water, as high temperatures can reduce its mildness and increase the risk of irritation.

Safety summary

This ingredient is widely regarded as safe for use in rinse-off cosmetics. It has a low irritation and comedogenic risk, and no significant safety concerns have been reported in peer-reviewed literature or regulatory reviews.

Research notes

Amino-acid surfactants like this one have been studied for their mildness and skin compatibility. Research indicates they cause less disruption to the skin barrier and lower levels of irritation compared to sodium lauryl sulfate (SLS). However, most evidence comes from in vitro and clinical studies on similar surfactants rather than this specific compound.

Common label clues

Typical concentration
5–15% in rinse-off cleansers
Regulatory status
Approved for use in cosmetics globally, including by the U.S. FDA and EU CosIng database, with no known restrictions at typical use levels.
Common uses
Facial cleansers, Body washes, Shampoos, Makeup removers
Environmental note
Sodium Lauroyl Hydroxyethyl Beta-Alaninate is biodegradable and has a lower aquatic toxicity profile compared to many conventional surfactants, making it a more eco-conscious choice.

Good to know

  • This surfactant is biodegradable and considered environmentally friendlier than some traditional surfactants.
  • It is often found in 'amino-acid' or 'sulfate-free' cleansers marketed for sensitive skin.

Common questions

What is Sodium Lauroyl Hydroxyethyl Beta-Alaninate in beauty products?

This is a mild cleansing ingredient derived from amino acids (the building blocks of proteins) and fatty acids from coconut or palm oil. It works by helping water mix with oil and dirt so they can be rinsed away, but it does so without stripping your skin's natural moisture barrier. Think of it as a kinder alternative to harsh soaps that can leave your face feeling tight and dry.

What does Sodium Lauroyl Hydroxyethyl Beta-Alaninate do in a beauty product?

In a cleanser, this ingredient reduces the surface tension between water and oil, allowing dirt, makeup, and excess sebum to be emulsified and rinsed away. Its molecular structure is larger and less penetrating than traditional sulfate surfactants, so it cleanses the skin's surface without disrupting the lipid barrier or causing irritation.

Is Sodium Lauroyl Hydroxyethyl Beta-Alaninate safe for most people?

This ingredient is widely regarded as safe for use in rinse-off cosmetics. It has a low irritation and comedogenic risk, and no significant safety concerns have been reported in peer-reviewed literature or regulatory reviews.

Who should be careful with Sodium Lauroyl Hydroxyethyl Beta-Alaninate?

Individuals who prefer a very foamy, high-lather cleansing experience (this produces a moderate, creamy lather)

Research sources

CosIng - European Commission databaseOpenPubMed - Amino acid surfactants in dermatologyOpenEnvironmental Working Group (EWG) - Ingredient safetyOpen

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.