I’m sure that you see, use or at least heard of a face product that has collagen as one of its ingredients. The question that rise in my mind is that: the collagen should come from inside; so does really the outside collagen helps ??
Collagen exists naturally in our skin in the dermal layer ; Our skin is the manufacturer for the collagen, and we can only help in that manufacturing process by doing things that boost collagen production.
As we age our skin loses its elasticity because the skin begins to lose its tone as the collagen support does down. And because of that lines and wrinkles appears in our skin
Collagen injections replenish the skin's natural collagen. By supplementing your skin's own collagen, injections help smooth facial lines and some types of scars.
What about collagen products?
Products that contain Collagen creams work only on the skin surface because it cannot penetrate the skin and is not designed to be absorbed.
The bottom line : collagen must penetrate to the dermal layer in your skin to supplement your natural collagen (fillers or face needling ) otherwise it will only moist your skin surface