How we scored it
Ascorbyl part from glucose (natural) + borate from boric acid (mined borates, mineral) + Mg (mineral). All retained mass is natural origin: 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
Glucose-derived ascorbic acid is complexed with boric acid (from borax or colemanite) and neutralised with a magnesium base. No petrochemical fragment is involved.
In plain English
A stabilised form of vitamin C made by reacting ascorbic acid with boric acid and magnesium. It is used as an antioxidant and moisturising skin conditioner. The vitamin C comes from glucose; boron and magnesium come from mined minerals.
CosIng definition: Magnesium Ascorbylborate is the magnesium salt of the reaction product of Boric Acid and Ascorbic Acid
References
- 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.
- 2MAGNESIUM ASCORBYLBORATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3MAGNESIUM ASCORBYLBORATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=MAGNESIUM%20ASCORBYLBORATE