Collagen is a form of fibrous protein that is normally present in the bodies of humans and even mammals.
It provides a supportive structure for various body tissues such as muscles, bones and ligaments and prevents them from falling apart.
It works with another compound called Elastin to provide strength and firmness to the tissues.
Collagen also works to keep the skin looking firm, tight, flexible and youthful looking.
Young people naturally produce more collagen than older people.
With age, the collagen in the body breaks down leading to wrinkles and folds around the mouth.
As such, collagen stimulation leads to a more youthful looking skin.
The substance has been used for a long time in combating signs of aging.