The safety of dimethicone copolyols has been assessed by the Expert Panel on Ingredient Safety. The Expert Panel evaluated the scientific data and concluded that the dimethicone copolyols were safe for use as cosmetic ingredients. In 2003, as part of the scheduled re-evaluation of ingredients, the Expert Panel considered available new data on dimethicone copolyols and reaffirmed the above conclusion.
These polymers were, at most, slightly toxic when administered orally or dermally in a single dose. Dimethicone copolyols were not primary skin or ocular irritants and gave no evidence of subchronic oral toxicity. Clinical studies showed that the dimethicone copolyols were neither primary skin irritants nor sensitizers when tested at a 100% concentration.
Dimethicone copolyols may be used in cosmetics and personal care products marketed in Europe according to the general provisions of the Cosmetics Regulation of the European Union.
Link to the EU Cosmetic Regulation: