Ingredient review

Dioctyldodeceth-5 Lauroyl Glutamate

INCI: Dioctyldodeceth-5 Lauroyl Glutamate

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

beautyskincarecleansing

In plain English

This ingredient is a gentle cleanser made from a fatty alcohol (dioctyldodeceth-5) and an amino acid (lauroyl glutamate). It helps remove dirt and oil from your skin without causing dryness or irritation, making it a popular choice for sensitive skin. Unlike harsher soaps, it works by attracting both water and oil, so it can rinse away impurities while leaving your skin's natural moisture barrier intact.

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: semi synthetic
Evidence: moderate
Irritation: low
Clogging risk: low

How reviews are scored

Quick decision guide

Easy yes for most routines

Dioctyldodeceth-5 Lauroyl 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.

Step 1Start with the score, then check the irritation and clogging risk before judging Dioctyldodeceth-5 Lauroyl Glutamate.
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

Dioctyldodeceth-5 Lauroyl Glutamate is a semi-synthetic surfactant created by combining a fatty alcohol derivative with lauroyl glutamate, an amino acid-based compound. It belongs to the family of glutamate surfactants, which are known for their mildness and compatibility with sensitive skin.

How it works

In a cosmetic product, this ingredient acts as a surfactant, meaning it reduces the surface tension between water and oil. Its molecular structure has a water-loving (hydrophilic) head and an oil-loving (lipophilic) tail, allowing it to surround and lift away dirt, sebum, and makeup from the skin. When you rinse, the entire complex washes away, leaving skin clean but not stripped.

Pros

Extremely mild on skin

Unlike sulfate-based cleansers, this ingredient has a low irritation risk and is well-tolerated even by sensitive or reactive skin types.

Supports skin barrier health

Because it doesn't over-strip natural oils, it helps maintain the skin's moisture barrier, reducing the chance of dryness or tightness after washing.

Cons and cautions

Lower foam volume

It produces a creamy, low-foam lather rather than big bubbles, which may not satisfy users who equate foam with cleansing power.

Higher cost

Amino-acid-based surfactants are generally more expensive to produce, so products containing them often have a higher price point.

Best for

People with dry or sensitive skin looking for a non-stripping cleanser
Those with compromised skin barriers (e.g., eczema-prone) who need extra gentle cleansing

Use caution if

Individuals who prefer very high-foaming cleansers may find this too mild

Usage tips

Use in rinse-off products like facial cleansers or body washes for best results.

Pair with other mild surfactants to adjust foam and cleansing strength without increasing irritation.

Safety summary

Dioctyldodeceth-5 Lauroyl Glutamate is considered safe for use in cosmetics at typical concentrations. It has low irritation and sensitization potential, making it a preferred choice for gentle cleansing products. No significant safety concerns have been reported in regulatory reviews.

Research notes

Amino-acid-based surfactants like this one have been studied for their mildness and skin compatibility. Research indicates they cause less disruption to the skin barrier compared to traditional anionic surfactants like sodium lauryl sulfate. However, specific studies on this exact compound are limited, and most evidence is extrapolated from related glutamate surfactants.

Common label clues

Typical concentration: 1% to 10% in rinse-off products
Regulatory status: Approved for use in cosmetics in the EU, US, and other major markets. No known restrictions at typical concentrations.
Common uses: Cleansers, Facial washes, Shampoos, Body washes
Environmental note: As a glutamate-based surfactant, it is generally more biodegradable than conventional sulfates, though full environmental impact depends on the specific formulation.

Good to know

This ingredient is often found in 'sulfate-free' formulations.
It is biodegradable and considered more eco-friendly than many traditional surfactants.

Common questions

What is Dioctyldodeceth-5 Lauroyl Glutamate in beauty products?

What does Dioctyldodeceth-5 Lauroyl Glutamate do in a beauty product?

Is Dioctyldodeceth-5 Lauroyl Glutamate safe for most people?

Who should be careful with Dioctyldodeceth-5 Lauroyl Glutamate?

Individuals who prefer very high-foaming cleansers may find this too mild

Research sources

CosIng - European Commission DatabaseOpen PubMed - Amino Acid Surfactants ReviewOpen Environmental 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.