Ingredient review

Alanine Glutamate

INCI: Alanine Glutamate

A mild, amino-acid-based surfactant that cleanses without stripping the skin barrier.

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In plain English

Alanine Glutamate is a gentle cleansing ingredient made from two amino acids (alanine and glutamic acid). It helps remove dirt and oil from your skin and hair without causing dryness or irritation, making it a popular choice for sensitive skin.

Quick decision guide

Useful, but context matters

Alanine Glutamate 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 Alanine Glutamate.
  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

Alanine Glutamate is a surfactant created by combining the amino acids alanine and glutamic acid with a fatty acid. It belongs to the family of amino-acid-based cleansers, known for their mildness and skin-friendly pH.

How it works

It works by reducing the surface tension of water, allowing oil and dirt to be lifted away from the skin and rinsed off. Unlike harsher sulfates, it has a larger molecular structure that is less likely to penetrate and irritate the skin barrier.

Pros

Extremely mild on skin

Alanine Glutamate has a low irritation potential, making it ideal for daily use on sensitive or reactive skin without causing redness or tightness.

pH-balanced cleansing

It works well at a skin-friendly pH (around 5.5), helping to preserve the acid mantle and prevent disruption of the skin's natural barrier.

Cons and cautions

Lower foam volume

Compared to sulfates like SLS, Alanine Glutamate produces a less rich lather, which some users may perceive as less effective even though it cleans just as well.

Higher cost

Amino-acid surfactants are more expensive to produce, so products containing them often come at a premium price point.

Best for

  • People with dry or sensitive skin
  • Those looking for a sulfate-free cleanser

Use caution if

  • Individuals seeking a high-foaming, bubbly cleanser

Usage tips

Use with lukewarm water to maximize mildness.
Pair with a moisturizer if you have very dry skin, as even mild cleansers can be slightly drying over time.

Safety summary

Alanine Glutamate is considered safe for topical use with very low irritation and sensitization potential. It is not known to be comedogenic and is well-tolerated even by sensitive skin.

Research notes

Research on amino-acid surfactants shows they are significantly milder than traditional anionic surfactants like sodium lauryl sulfate, with less disruption to skin barrier function and lower protein denaturation.

Common label clues

Typical concentration
1–15% in rinse-off products
Regulatory status
Approved for use in cosmetics globally, including by the EU CosIng database and the US FDA as a safe surfactant.
Common uses
Facial cleansers, Body washes, Shampoos, Baby care
Environmental note
Amino-acid-based surfactants are generally biodegradable and have a lower environmental impact than many petroleum-based surfactants.

Good to know

  • Alanine Glutamate is often listed near the top of ingredient lists in sulfate-free cleansers.
  • It is compatible with other mild surfactants like Cocamidopropyl Betaine to improve foam.

Common questions

What is Alanine Glutamate in beauty products?

Alanine Glutamate is a gentle cleansing ingredient made from two amino acids (alanine and glutamic acid). It helps remove dirt and oil from your skin and hair without causing dryness or irritation, making it a popular choice for sensitive skin.

What does Alanine Glutamate do in a beauty product?

It works by reducing the surface tension of water, allowing oil and dirt to be lifted away from the skin and rinsed off. Unlike harsher sulfates, it has a larger molecular structure that is less likely to penetrate and irritate the skin barrier.

Is Alanine Glutamate safe for most people?

Alanine Glutamate is considered safe for topical use with very low irritation and sensitization potential. It is not known to be comedogenic and is well-tolerated even by sensitive skin.

Who should be careful with Alanine Glutamate?

Individuals seeking a high-foaming, bubbly cleanser

Research sources

CosIng - European CommissionOpenPubMed - Amino acid surfactants in cosmeticsOpenEnvironmental Working Group - 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.