Proof.Fit

Collagen

14 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Main Effects
Bone health

Resorption ↓45%, formation ↑23%

BMD ↑6–10%, resorption ↓

Strong
93,359
Joints & tendons

Pain/lameness -

Collagen breakdown ↑

Bone/cartilage repair +

Strong
32,712
Skin repair

Healing rate +56%

Scar control +32pp

Collagen synthesis +69x

Strong
16,273
Skin appearance

Wrinkles/hydration +40%

Scar closure 32→47%

Elasticity/collagen +17%

Strong
11,265
Healthy aging

Bone health: BMD +8%

Skin aging: wrinkles -20%

Fracture risk: -33%

Strong
17,264
Joint mobility

Pain/function +40%

Mobility/flexion +3.23°

Strong
8,941
Joint comfort

Pain/function improved

Cartilage breakdown markers ↓

Strong
8,406
Skin hydration

Hydration↑ TEWL↓

Hydration +28%

Strong
2,835
Body composition

Fat loss/body contour

Skin thickening/firming

Strong
2,234
Muscle maintenance

Muscle size +5-15%

Strength/RTD gains similar

Lean mass +4kg

Moderate
885
Vitality

Bone/metabolic ↑

Strength/healing ↑

Moderate
1,344
Digestive support

Digestive symptoms +44.5%

Inflammation/relapse 65%→26%

Moderate
522
Exercise recovery

Collagen synthesis ↑

Recovery soreness ↓

Moderate
324
Hair & Nails

Hair growth +1.01

Tolerability unchanged

Weak
83