Database/Binding/Magnesium Alginate
100% natural origin · ISO 16128

Is Magnesium Alginate natural?

Yes. Alginic acid is seaweed-derived and magnesium is a natural mineral counter-ion, so the salt is fully natural origin.

INCI nameMagnesium Alginate
CAS37251-44-8
FunctionBinding · Emulsion Stabilising
FeedstockThe magnesium salt of alginic acid extracted from…

How we scored it

Alginate (brown-algae polysaccharide, natural) + magnesium (natural mineral counter-ion) = 1.0.
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

The magnesium salt of alginic acid extracted from brown seaweed, formed by ion exchange with a magnesium source. No petrochemical route.

In plain English

A seaweed-derived gum used to thicken and stabilise formulas. This version is bound to magnesium, a natural mineral, instead of sodium.

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 ALGINATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3MAGNESIUM ALGINATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=MAGNESIUM%20ALGINATE