A synthetic isoprenoid ketone used as a skin-conditioning ingredient.
What it is
Teprenone (geranylgeranylacetone) is an isoprenoid compound, a ketone with a long chain built from four isoprene units. CosIng lists it as a skin-conditioning ingredient.
Where it is used
Found in a small number of creams, serums and other skin care 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.
The label does not show the amount used.
Functions
- Skin conditioning
- Maintaining the skin in good condition.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

