Vitamin D2, listed as a skin-conditioning ingredient and linked to an Annex II entry.
What it is
Ergocalciferol is vitamin D2, a secosteroid formed when ergosterol, a sterol found in fungi and yeasts, is exposed to ultraviolet light. CosIng lists it as a skin-conditioning ingredient. The EU data link this ingredient to an entry in Annex II (prohibited substances).
Where it is used
Appears on the ingredient lists of a small number of products.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
See the EU regulation section for what the Annex II entry covers and how it applies.
Functions
- Skin conditioning
- Maintaining the skin in good condition.
EU regulation
EU · Annex II, entry 335Ergocalciferol (INN) and Cholecalciferol (vitamins D2 and D3)
- As of
- 3 November 2026 · (EC) 2009/1223