Ingredient review

Sodium Laureth-7 Tartrate

INCI: Sodium Laureth-7 Tartrate

A gentle, sulfate-free surfactant that cleanses without stripping the skin's natural moisture barrier.

beautyskincarecleanser

In plain English

Sodium Laureth-7 Tartrate is a mild cleansing ingredient used in soaps and shampoos. It helps remove dirt and oil without making your skin feel tight or dry, because it's less harsh than traditional sulfates like SLS.

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

Sodium Laureth-7 Tartrate 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 Laureth-7 Tartrate.
  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 surfactant made by combining lauryl alcohol (from coconut or palm oil) with tartaric acid (a natural fruit acid). It belongs to the class of ether carboxylates, known for their gentle cleansing properties.

How it works

It reduces the surface tension of water, allowing oil and dirt to be lifted away from the skin and rinsed off easily. Its mildness comes from its large molecular structure, which is less penetrating and less irritating to the skin barrier.

Pros

Very gentle on skin

Its large molecular structure means it cleanses without penetrating or irritating the skin barrier, making it ideal for sensitive or dry skin types.

Sulfate-free formula

Provides effective cleansing without the harshness of sodium lauryl sulfate (SLS), reducing the risk of irritation and dryness.

Cons and cautions

Lower foam volume

Produces less lather than traditional sulfates, which some users may perceive as less effective, though cleansing power remains strong.

Sustainability concerns

Often derived from palm oil, which can be linked to deforestation unless certified sustainable sources are used.

Best for

  • People with dry or sensitive skin
  • Those seeking sulfate-free cleansers

Use caution if

  • Individuals with known allergies to coconut-derived ingredients

Usage tips

Use in rinse-off products like cleansers and shampoos for best results.
Pair with moisturizing ingredients like glycerin or ceramides to enhance skin comfort.

Safety summary

Generally recognized as safe for topical use. Low irritation and comedogenic risk. Patch test recommended for very sensitive individuals.

Research notes

Studies on ether carboxylates show they are milder than traditional sulfates and less damaging to skin barrier function. Specific data on Sodium Laureth-7 Tartrate is limited but consistent with class behavior.

Common label clues

Typical concentration
1–10% in rinse-off products
Regulatory status
Approved for use in cosmetics by the FDA and EU CosIng database with no concentration restrictions.
Common uses
Facial cleansers, Body washes, Shampoos
Environmental note
Biodegradable, but sourcing from palm oil may impact rainforests unless RSPO-certified.

Good to know

  • Sodium Laureth-7 Tartrate is considered a 'green' surfactant due to its biodegradability.
  • It is often used in formulations labeled 'sulfate-free'.

Common questions

What is Sodium Laureth-7 Tartrate in beauty products?

Sodium Laureth-7 Tartrate is a mild cleansing ingredient used in soaps and shampoos. It helps remove dirt and oil without making your skin feel tight or dry, because it's less harsh than traditional sulfates like SLS.

What does Sodium Laureth-7 Tartrate do in a beauty product?

It reduces the surface tension of water, allowing oil and dirt to be lifted away from the skin and rinsed off easily. Its mildness comes from its large molecular structure, which is less penetrating and less irritating to the skin barrier.

Is Sodium Laureth-7 Tartrate safe for most people?

Generally recognized as safe for topical use. Low irritation and comedogenic risk. Patch test recommended for very sensitive individuals.

Who should be careful with Sodium Laureth-7 Tartrate?

Individuals with known allergies to coconut-derived ingredients

Research sources

CosIng - Sodium Laureth-7 TartrateOpenPubMed - Mild Surfactants ReviewOpenEnvironmental 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.