Proof.Fit

Type-II Collagen

9 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Main Effects
Joints & tendons

Collagen breakdown ↓

Pain/function ↑

JSN/erosion ↓

Strong
16,686
Joint mobility

Pain/function better

Cartilage markers↓

Strong
13,578
Joint comfort

Pain ↓, function ↑

CTX-II ↓ or ↑

Strong
3,368
Healthy aging

Pain/function ↑

CTX-II/PRO-C2 ↓

JSN progression ↓

Strong
8,821
Daily comfort

Pain/function improvement

Biomarker shifts -31%

Strong
2,426
Wellbeing

Pain/function improved

Cartilage marker down

Strong
1,386
Workout performance

Pain/function + movement

Strength/body mass gains

Moderate
653
Illness recovery

Pain/function ↑; relapse

Wound healing ↑ (~2x)

Cartilage marker ↓, pain ↓

Moderate
524
Muscle soreness

Pain ↓; function ↑

CTX-II ↓; soreness ↓

Moderate
416