Beauty/Mobility/Inflammation

Collagen

The most abundant structural protein in the body, supplemented as hydrolyzed peptides to support skin elasticity, joint health, and connective tissue integrity.

Collagen

The most abundant structural protein in the body, supplemented as hydrolyzed peptides to support skin elasticity, joint health, and connective tissue integrity.

score

evidence

Safe

risk

Warning

Do not take without Vitamin C — Essential cofactor for collagen synthesis in the body

Proven Benefits

01Improves skin hydration and elasticity

02Reduces joint pain in osteoarthritis

03Supports cartilage repair

04Strengthens hair and nails

05May support bone mineral density

06Aids wound healing

Chemical Forms

Recommended

Hydrolyzed collagen peptides (Type I & III)
Undenatured Type II collagen (UC-II)
Marine collagen peptides

Avoid

Unhydrolyzed gelatin (poor absorption)
Low-quality unverified sources

Expert Note

Hydrolyzed peptides absorb best; UC-II for joints

Protocol

Amount

2.5 g - 15 g

Frequency

daily

When

Any time, with or without food

Condition-Based Dosing

Skin health and anti-aging

2.5 - 10 g hydrolyzed collagen peptides daily— Most skin studies use 2.5-5 g/day for 8-12 weeks

Osteoarthritis pain relief

10 g hydrolyzed collagen or 40 mg UC-II daily— Benefits may take 8-12 weeks to appear

Joint health in athletes

5 - 15 g collagen peptides daily— Often taken 30-60 min before exercise with vitamin C

Bone density support

5 g specific collagen peptides daily— Studied primarily in postmenopausal women

Nail and hair strength

2.5 g bioactive collagen peptides daily— Improvements typically seen after 12-24 weeks

Safety & Limits

Upper Safe Limit

15 g/day (well-tolerated in studies)

Cycling

Safe for continuous use

Contraindications

Allergy to source animal (fish, shellfish, bovine, pork)

Kidney disease (hydroxyproline metabolized as oxalate)

Hypercalcemia (some marine collagen is calcium-rich)

Pregnancy and breastfeeding (insufficient safety data)

Histamine intolerance (anecdotal reports of reactions)

Blood-thinning medications (potential interaction)

Synergies

Vitamin CRequired

Essential cofactor for collagen synthesis in the body

Hyaluronic Acid

Complements collagen for joint lubrication and skin hydration

Vitamin D3

Supports bone mineralization alongside collagen matrix

Avoid Combining With

✕Excessive sugar intake (glycation damages collagen fibers)
✕Ultraviolet radiation (accelerates collagen degradation)
✕Smoking (impairs collagen synthesis via oxidative stress)
✕Excessive alcohol (disrupts collagen production)

Updated 4/15/2026