Ingredient review

Magnesium/TEA-Coco-Sulfate

INCI: Magnesium/TEA-Coco-Sulfate

A gentle, coconut-derived surfactant that cleanses effectively without stripping the skin's natural moisture barrier.

beautyskincarecleanser

In plain English

This ingredient is a mild soap-like substance made from coconut oil and minerals. It helps water mix with oil and dirt so they can be rinsed away, leaving skin and hair clean without feeling tight or dry.

Review score

Safety, usefulness, and evidence

3.5Good
3.5/ 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

Magnesium/TEA-Coco-Sulfate 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 Magnesium/TEA-Coco-Sulfate.
  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 created by combining coconut fatty acids with magnesium and triethanolamine (TEA). It belongs to the sulfate family but is considered milder than traditional sodium lauryl sulfate.

How it works

It reduces the surface tension of water, allowing it to penetrate oils and dirt on the skin or hair. The molecules surround and lift away impurities, which are then rinsed off with water.

Pros

Gentle on skin

Compared to harsher sulfates, this ingredient cleanses without stripping away too many natural oils, making it suitable for daily use.

Coconut-derived

Sourced from renewable coconut oil, it is a more sustainable choice than fully petroleum-based surfactants.

Cons and cautions

Potential for mild irritation

The TEA component can be a minor irritant for some, especially those with reactive skin or allergies to amines.

Not completely sulfate-free

Despite being milder, it is still a sulfate and may not be suitable for those strictly avoiding all sulfates.

Best for

  • People with normal to combination skin looking for a balanced cleanser
  • Those who want a sulfate-based cleanser that is gentler than SLS

Use caution if

  • Individuals with very dry, sensitive, or compromised skin barriers

Usage tips

Use in rinse-off products only; avoid leaving on skin for extended periods.
Pair with a moisturizer after cleansing to maintain hydration.

Safety summary

Considered safe for use in rinse-off cosmetics at typical concentrations. The TEA component is regulated to ensure low levels, and the overall irritation potential is low for most skin types.

Research notes

Studies indicate that magnesium/TEA-coco-sulfate is a mild surfactant with good foaming and cleansing properties. It is less irritating than sodium lauryl sulfate but may still cause mild dryness in sensitive individuals.

Common label clues

Typical concentration
1–10% in rinse-off products
Regulatory status
Approved for use in cosmetics in the EU, US, and many other regions. TEA levels are regulated to limit potential nitrosamine formation.
Common uses
Shampoos, Body washes, Facial cleansers
Environmental note
Derived from coconut oil, a renewable resource. It is generally biodegradable, but always check product-specific environmental claims.

Good to know

  • This ingredient is often found in 'gentle' or 'mild' cleansers marketed for sensitive skin.
  • It is biodegradable and considered environmentally safer than some older surfactants.

Common questions

What is Magnesium/TEA-Coco-Sulfate in beauty products?

This ingredient is a mild soap-like substance made from coconut oil and minerals. It helps water mix with oil and dirt so they can be rinsed away, leaving skin and hair clean without feeling tight or dry.

What does Magnesium/TEA-Coco-Sulfate do in a beauty product?

It reduces the surface tension of water, allowing it to penetrate oils and dirt on the skin or hair. The molecules surround and lift away impurities, which are then rinsed off with water.

Is Magnesium/TEA-Coco-Sulfate safe for most people?

Considered safe for use in rinse-off cosmetics at typical concentrations. The TEA component is regulated to ensure low levels, and the overall irritation potential is low for most skin types.

Who should be careful with Magnesium/TEA-Coco-Sulfate?

Individuals with very dry, sensitive, or compromised skin barriers

Research sources

Cosmetic Ingredient Review (CIR) - Safety Assessment of SulfatesOpenPubChem - TriethanolamineOpenEnvironmental Working Group (EWG) - Magnesium/TEA-Coco-SulfateOpen

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.