How we scored it
Glycerol (natural) + two hexadecanoyl (palmitic) chains (natural) + phosphate (mineral), esterified. 649/649 = 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
Phosphatidic acid is a phospholipid built from glycerin, two natural palmitic fatty-acid chains and mineral phosphate, typically derived from soy or sunflower lecithin. No petrochemical route is used commercially.
In plain English
A natural fat-based ingredient that conditions skin and helps stabilise emulsions. It is built from glycerin, fatty acids and phosphate, mirroring lipids found in plant and animal cell membranes.
CosIng definition: Phosphatidic Acid is the phospholipid in which one of the primary hydroxyl groups of glycerin is esterified with phosphoric acid; and the two remaining hydroxyl groups are esterified with long chain, saturated or unsaturated fatty acids
Structure
[(2R)-2-hexadecanoyloxy-3-phosphonooxypropyl] hexadecanoate
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.
- 2Phosphatidic Acid. PubChem CID 446066. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3PHOSPHATIDIC ACID. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4PHOSPHATIDIC ACID. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PHOSPHATIDIC%20ACID