# What is Collagen Peptides?

> Collagen peptides are collagen protein broken into short chains by enzymes so they dissolve easily, but collagen lacks tryptophan and is an incomplete p...

- **URL**: https://www.best-proteinpowder.com/glossary/collagen-peptides/
- **Publisher**: [Best Protein Powder](https://www.best-proteinpowder.com/)

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Collagen peptides are collagen protein broken into short chains by enzymes so they dissolve easily, but collagen lacks tryptophan and is an incomplete protein.

**How we rank:** Collagen is studied for other uses, such as joint pain, skin and tendon health, often at doses of about 10 to 15 g per day. Some results are positive, but many studies are small or industry funded, so the evidence is mixed. Collagen still counts toward the grams of protein printed on the label, because labels measure protein by nitrogen content. That can make a collagen-heavy blend look like a better protein source than it is.