collagen fibers in dermis skin layer on white background.

skin collagen fibers fibroblasts protein amino acid elastin structure strength flexibility wrinkles tendon ligaments bones muscles fibrous tissue cell layer epidermis dermis hypodermis firm young healthy aging age body vector diagram infographic flat design schematic blood vessels formation synthesis intact stretched shape production childhood aesthetic dermatology beauty abundant dead cells repair damage isolated white background color found pink pattern brand purple font line petal magenta label