4-Zoology-Organ-Skin-Features-Wrinkle
wrinkle
Collagen makes skin firm, and lack makes skin thin {wrinkle}. Elastin makes skin flexible. Glycosaminoglycans absorb water. Retinol, retin-A, or retinoin can prevent wrinkles by stimulating collagen production.
crow's feet
Wrinkles {crow's feet}| can be at outer eye corners.
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Date Modified: 2022.0225