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Beauty & Personal Care

Jade Roller and Gua Sha Set – 2 in 1 Natural Facial Jade Roller and Gua Sha Facial Tool Massager for Anti-Aging, Wrinkles, Slimming, Scraping and Facial Therapy (Jade Roller for Face)

Beauty & Personal Care4.6· 34 Amazon ratings

Bias-adjusted across 34 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Beauty & Personal Care.

66.7%
Percentile · Global
66.2%
Percentile · Cohort
Beauty & Personal Care
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Jade Roller and Gua Sha Set – 2 in 1 Natural Facial Jade Roller and Gua Sha Facial Tool Massager for Anti-Aging, Wrinkles, Slimming, Scraping and Facial Therapy (Jade Roller for Face)

How the score was built

Amazon ratings
34

used for the Bayesian percentile

Raw star average
4.6 / 5

unadjusted Amazon mean

Bayesian avg
4.37

raw rating shrunk to the category prior

Reviewer-graph z
-0.707

bias-corrected vs. each reviewer's baseline (0 qualifying)

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Same category · Beauty & Personal Care

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