Gelatin is derived from collagen, a protein collected from animal skin.

Gelatin is made from animal collagen — a protein that makes up connective tissues, such as skin, tendons, ligaments, and bones. The hides and bones of certain animals — often cows and pigs — are boiled, dried, treated with a strong acid or base, and finally filtered until the collagen is extracted.

Image credit: Live Science
Source: foxnews.com/health…