Collagen: the numbers
Everything below is computed from the 98 curated collagen we track - no estimates, no third-party data.
98Curated models
64Brands
★ 4.5Average Amazon rating
730,584Amazon ratings
How Amazon buyers rate them
The average Amazon rating across the category is ★ 4.5. Low-rated products with meaningful rating volume are dropped during curation, so the spread below reflects the survivors.
Brand share of the curated catalog
Most-rated models
Where these numbers come from
Counts, ratings, and rating totals are pulled from the curated collagen catalog on every build - the same data behind the Collagen category page. Junk listings and no-name brands are filtered out before anything is counted. Product data: last refreshed aug 4, 2026.