COBALT: Allergen or Not An Allergen?

COBALT: Allergen or Not An Allergen?

Allergen. Cobalt A strong, common allergen, cobalt is a naturally-occurring metal, frequently found with nickel, and was Allergen of the Year in 2016. If your patch test showed an allergy to cobalt, avoid it in cosmetics as an ingredient (frequently used as a colorant for makeup), in pottery and cement, as well as in colored …