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Serums: the numbers

Everything below is computed from the 293 curated serums we track - no estimates, no third-party data.

293Curated models
178Brands
★ 4.4Average Amazon rating
422,848Amazon ratings

How Amazon buyers rate them

The average Amazon rating across the category is ★ 4.4. Low-rated products with meaningful rating volume are dropped during curation, so the spread below reflects the survivors.

★ 4.6-5.0
72
★ 4.3-4.5
169
★ 4.0-4.2
42
Below ★ 4.0
10

Brand share of the curated catalog

medicube
7 · 2%
Olay
6 · 2%
Beauty of Joseon
5 · 2%
celimax
4 · 1%
Cosrx
4 · 1%
Naturium
4 · 1%
Eight Saints
4 · 1%
Skin1004
4 · 1%

Most-rated models

Where these numbers come from

Counts, ratings, and rating totals are pulled from the curated serums catalog on every build - the same data behind the Serums category page. Junk listings and no-name brands are filtered out before anything is counted. Product data: last refreshed aug 4, 2026.