Protein complex: Collagen is an important constituent of the skin and serves to support the skin. As we age collagen changes and breaks down and as such the firmness of the skin diminishes.
Answered 1/23/2014
4.6k views
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