Proof.Fit

Collagen

14 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Bone health
Strong

Resorption ↓45%, formation ↑23%

BMD ↑6–10%, resorption ↓

93,359 people
Joints & tendons
Strong

Pain/lameness -

Collagen breakdown ↑

Bone/cartilage repair +

32,712 people
Skin repair
Strong

Healing rate +56%

Scar control +32pp

Collagen synthesis +69x

16,273 people
Skin appearance
Strong

Wrinkles/hydration +40%

Scar closure 32→47%

Elasticity/collagen +17%

11,265 people
Healthy aging
Strong

Bone health: BMD +8%

Skin aging: wrinkles -20%

Fracture risk: -33%

17,264 people
Joint mobility
Strong

Pain/function +40%

Mobility/flexion +3.23°

8,941 people
Joint comfort
Strong

Pain/function improved

Cartilage breakdown markers ↓

8,406 people
Skin hydration
Strong

Hydration↑ TEWL↓

Hydration +28%

2,835 people
Body composition
Strong

Fat loss/body contour

Skin thickening/firming

2,234 people
Muscle maintenance
Moderate

Muscle size +5-15%

Strength/RTD gains similar

Lean mass +4kg

885 people
Vitality
Moderate

Bone/metabolic ↑

Strength/healing ↑

1,344 people
Digestive support
Moderate

Digestive symptoms +44.5%

Inflammation/relapse 65%→26%

522 people
Exercise recovery
Moderate

Collagen synthesis ↑

Recovery soreness ↓

324 people
Hair & Nails
Weak

Hair growth +1.01

Tolerability unchanged

83 people