Gelatin is a protein made from animal collagen, usually from cows and pigs. It's commonly used to make capsules, cosmetics, ointments, and foods.
Collagen is one of the materials that make up cartilage, bone, and skin. Taking gelatin might increase the production of collagen in the body. People use gelatin for aging skin, osteoarthritis, osteoporosis, brittle nails, obesity, diarrhea, and many other conditions.

• Appearance: Pale yellow to beige powder
  
• Solubility: Soluble in hot water
  
• Stability: Stable. Hygroscopic. Incompatible with strong oxidizing agents.