Collagen peptides
Also called: Hydrolyzed collagen, collagen hydrolysate
A protein broken into small pieces so it digests easily. It supplies the building blocks for skin, joints, and connective tissue.
Commonly used for
- Skin hydration and elasticity (some studies)
- Joint comfort
- Hair and nails
- Adding protein to your day
Found naturally in
- Bone broth
- Chicken skin and fish skin
- Gelatin
- Your body makes collagen and needs vitamin C to do it
Label red flags
- No third-party testing for heavy metals
- Added sugar, sweeteners, or flavors in a product meant for daily use
- Marketed as a complete protein. Collagen is missing an essential amino acid.
Check with a provider
- Fish or shellfish allergy (marine collagen)
- Egg allergy, since some blends include eggshell membrane
- Kidney disease or a protein-restricted diet
- Pregnancy or breastfeeding
Supplements that contain it
Parts of the body it affects
Explore what each area does and the conditions that can affect it.
Skin
Your skin is your largest organ and a major immune barrier. Rashes, patches, and color changes are often the first visible signs of an autoimmune condition.
Joints
Joints let your bones move smoothly. Swelling and morning stiffness, rather than ache alone, can point to inflammation.
Illustrations: Servier Medical Art, CC BY 4.0
Wondering if your symptoms fit a pattern?
Dr. Lesher is a naturopathic doctor who specializes in women's autoimmune and chronic conditions. Since 2020, she has helped more than 900 patients overcome and heal from their conditions.