Sports ResearchCollagen Peptides
Unflavored, collagen peptides
Incomplete protein. Most of the protein here is collagen, which lacks tryptophan, one of the nine essential amino acids. High concentration doesn’t make it a complete protein the way whey, egg or soy is.
Bench Facts
Rated 4.6 out of 5 by 130,436 Amazon customers; blended with 100 average ratings, that’s a taste score of 4.60.
Nutrition Facts
41 servings per 16 oz tub
Amount per serving
As labeled for Unflavored. Source: amazon.com
Where the numbers come from
- Price
- $32.95 for 16 oz tub (41 servings) at Amazon, Oct 21, 2026.
- Rating
- 4.6 out of 5 from 130,436 ratings at Amazon, Oct 21, 2026.
- Nutrition
- amazon.com
- Research notes
Research notes
Collagen is an incomplete protein: it lacks tryptophan (none is listed in the label's amino acid profile), and the label puts protein at under 1% Daily Value because that figure is adjusted for protein quality. Its protein concentration and cost per gram therefore overstate its value as a complete protein source. Single ingredient: hydrolyzed bovine collagen peptides (type I and III). Supplement Facts read from the Amazon listing image (sportsresearch.com blocked automated access); the panel does not declare fat, carbohydrate or sugars (omitted because they are zero), recorded here as 0. Label says 'about 41 servings'. Price is Amazon's current one-time price; no Typical price or deal badge was shown (Subscribe & Save $29.65 not used). Listing is sold by Sports Research. Rating is shared across the listing's sizes.
How it compares
Against the typical powder, the best powder on each measure, and chicken breast.
Protein concentration
Share of calories from protein. Higher is better.
Cost per gram of protein
What one gram of protein costs at regular retail price. Lower is better.
Shorter is cheaper.
Taste
Customer rating out of 5, adjusted for review count. Higher is better. Axis starts above zero.