Exogenous ochronosis: Higher strengths and persistent, sustained use of hydroquinone (eg 6 months or more) especially in darker skin types are risk factors for exogenous ochronosis. This results in brownish-yellow pigmented globules in the skin's collagen layers. Prevention is key by avoiding excessive use!
Answered 4/16/2016
5.7k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question