Ingredient review

Dimer Dilinoleyl Bis-Lauroylglutamate/Lauroylsarcosinate

INCI: DIMER DILINOLEYL BIS-LAUROYLGLUTAMATE/LAUROYLSARCOSINATE

A gentle, amino-acid-based ingredient that helps condition skin and stabilize formulas without common irritation.

beautyskincareemulsifier

In plain English

This ingredient is a blend of fatty acids and amino acids (the building blocks of proteins) that helps your skin feel soft and smooth. It also helps mix oil and water in products, so your lotion or cream stays blended and spreads easily. Think of it as a gentle helper that makes your skincare feel nicer without causing redness or breakouts.

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

Dimer Dilinoleyl Bis-Lauroylglutamate/Lauroylsarcosinate 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 Dimer Dilinoleyl Bis-Lauroylglutamate/Lauroylsarcosinate.
  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

A semi-synthetic compound made by combining dimer dilinoleic acid (a fatty acid from plant oils) with lauroylglutamate and lauroylsarcosinate (amino-acid derivatives). It acts as both a skin conditioner and an emulsifier.

How it works

It sits on the skin's surface, forming a thin film that reduces water loss and leaves a smooth feel. As an emulsifier, it helps oil and water mix evenly, improving product texture and stability.

Pros

Gentle on skin

Made from amino acids, it has a low irritation risk, making it a good choice for sensitive or reactive skin types.

Improves product feel

As an emulsifier, it helps creams and lotions feel smooth and spread evenly, enhancing your daily application experience.

Cons and cautions

Limited research

There are few peer-reviewed studies specifically on this ingredient, so its long-term skin benefits are not fully established.

May feel heavy on oily skin

The film-forming nature can leave a slight residue that might not be ideal for very oily or acne-prone skin.

Best for

  • People with dry or normal skin looking for a gentle conditioner
  • Those who prefer amino-acid-based ingredients over harsher emulsifiers

Use caution if

  • Individuals with extremely oily or acne-prone skin may find the film too heavy

Usage tips

Use in moisturizers or serums for a soft, non-greasy finish.
Pair with lightweight humectants like glycerin to balance texture for oily skin.

Safety summary

Considered safe for cosmetic use at typical concentrations. Low irritation and comedogenic risk, with no known significant safety concerns based on current data.

Research notes

Evidence is moderate, based on its chemical class (amino-acid derivatives) and general use in cosmetics. Direct studies on this specific compound are limited, but related ingredients have good safety profiles.

Common label clues

Typical concentration
0.5% to 5%
Regulatory status
Approved for use in cosmetics in the EU, US, and other major markets. No specific restrictions beyond general cosmetic safety standards.
Common uses
Moisturizers, Serums, Cleansers, Sunscreens
Environmental note
Sourced from plant-derived fatty acids and synthetic amino acids; biodegradability is expected to be moderate but not fully documented.

Good to know

  • This ingredient is often found in 'clean beauty' formulations due to its amino-acid base.
  • It is not a common standalone ingredient; you'll usually see it in a blend within a product.

Common questions

What is Dimer Dilinoleyl Bis-Lauroylglutamate/Lauroylsarcosinate in beauty products?

This ingredient is a blend of fatty acids and amino acids (the building blocks of proteins) that helps your skin feel soft and smooth. It also helps mix oil and water in products, so your lotion or cream stays blended and spreads easily. Think of it as a gentle helper that makes your skincare feel nicer without causing redness or breakouts.

What does Dimer Dilinoleyl Bis-Lauroylglutamate/Lauroylsarcosinate do in a beauty product?

It sits on the skin's surface, forming a thin film that reduces water loss and leaves a smooth feel. As an emulsifier, it helps oil and water mix evenly, improving product texture and stability.

Is Dimer Dilinoleyl Bis-Lauroylglutamate/Lauroylsarcosinate safe for most people?

Considered safe for cosmetic use at typical concentrations. Low irritation and comedogenic risk, with no known significant safety concerns based on current data.

Who should be careful with Dimer Dilinoleyl Bis-Lauroylglutamate/Lauroylsarcosinate?

Individuals with extremely oily or acne-prone skin may find the film too heavy

Research sources

CosIng Database - European CommissionOpenPersonal Care Council - Ingredient SafetyOpenPubMed - Amino Acid Surfactants in CosmeticsOpen

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.