Two Distinct regions of the integumentary system: epidermis & dermis. Underneath dermis is hypodermis (superficial fascia), also called subcutaneous tissue which is composed of loose connective tissue (mostly areolar and adipose).
A collagen facial is a treatment designed to restore the depleted collage in your face and rejuvenate your skin. Ultimately, a collagen facial will slow down the aging process by replenishing your body's natural proteins through external applications.
Collagen for medical use can originate from humans, cows, pigs, or sheep. Skin fillers. Collagen injections can improve the contours of the skin and fill out depressions. Fillers that contain collagen can be used cosmetically to remove lines and wrinkles from the face. It can also improve scars, as long as these do not have a sharp edge.