Collagen + Vitamin C stack
Tier 2 — promising · Tendon · Skin · Joint
Vitamin C is required for your body to properly use collagen, making this combination logical. A 2024 trial found 15 g collagen plus 50 mg vitamin C taken before exercise enhanced tendon collagen production. Popular for injury prevention among athletes and people recovering from tendon or ligament injuries. Very safe with no notable side effects.
Dose: 15 g collagen peptides + 50 mg vitamin C 30–60 min before exercise