Database/Cleansing/Magnesium Myreth Sulfate
Mostly natural · ISO 16128

Is Magnesium Myreth Sulfate natural?

Mostly. Myristyl alcohol, the sulfate group, and the magnesium counter-ion are all natural or mineral; only the ethylene oxide chain is petrochemical.

INCI nameMagnesium Myreth Sulfate
FunctionCleansing · Cleansing Surfactant
FeedstockMyristyl alcohol from coconut or palm kernel oil…

How we scored it

Tetradecanol 214.4 (natural) + 2.5EO 110.1 (petrochemical) + SO3 80.1 (mineral) + half-Mg 12.2 (mineral); natural 306.7/total 416.8 = 0.74
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Myristyl alcohol from coconut or palm kernel oil is ethoxylated, sulfated, and neutralised with a magnesium source.

In plain English

A cleansing surfactant made from myristyl alcohol (a coconut or palm-derived fatty alcohol) reacted with ethylene oxide and sulfate, then neutralised with magnesium. Used in washes and shampoos.

CosIng definition: Poly(oxy-1,2-ethanediyl), .alpha.-sulfo-.omega.tetradecyloxy-, magnesium salts (2:1) (1-4 mol EO average molar ratio)

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References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2MAGNESIUM MYRETH SULFATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3MAGNESIUM MYRETH SULFATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=MAGNESIUM%20MYRETH%20SULFATE