when IGF - 1 levels drop, the body slows production of new cells and instead, repairs existing cells. (leangainsguide.com)
In fact, facials are the perfect way to rid your skin of excess skin and oils, and stimulate the production of new cells and collagen. (letsgothin.com)
Zinc plays an important role in the production of new cells (including hair cells) and the maintenance of oil secreting glands (that make hair shiny). (consumerhealthdigest.com)