How we scored it
Deoxynucleoside C10H14N2O5: deoxyribose + thymine, both fermentation-derived. 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
Thymidine is manufactured by fermentation of glucose using nucleoside-producing microorganisms, the dominant commercial route.
In plain English
Thymidine is a DNA building block used to condition skin. It's produced by fermenting plant sugars with microorganisms.
Structure
1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione
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.
- 2Thymidine. PubChem CID 5789. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3THYMIDINE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4THYMIDINE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=THYMIDINE