Proline (L-Proline)

Tier 2 — promising · Collagen synthesis · Wound healing · Skin

The primary structural component of collagen, making up about 28% of all collagen residues. Your body synthesises proline from glutamate, but supplementation alongside vitamin C and glycine may support collagen production after injury or during aging. Often included in collagen stacks. Very safe at standard doses.

Dose: 500–2,000 mg/day alongside vitamin C and glycine for collagen synthesis support