Collagen strengthens hair, skin, and nails; reduces fine lines; heals wounds.
Types I and III support healthy hair, skin, and nails by tightening and firming tissue (type II promotes healthy joints, bones, and cartilage). Some products contain multiple forms for more benefits; others combine collagen with vitamin C, lysine, or hyaluronic acid, ingredients that help your body produce more collagen. Most products are derived from chicken, bovines, or fish, but vegetarians and vegans will soon find "vegetable collagen" from tobacco plants.
Oral and topical: Omojo Anti-Age Kit
Oral: YouTheory Collagen Advanced Formula