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Beauty & Personal Care

Coco & Eve Shampoo Brush. Gentle Massage Brush with Soft Bristles to Exfoliate Scalp, Remove Dead Skin, Dandruff and Boost Circulation for Hair Growth.

Beauty & Personal Care4.5· 80 Amazon ratings

Bias-adjusted across 80 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Beauty & Personal Care.

69.8%
Percentile · Global
68.7%
Percentile · Cohort
Beauty & Personal Care
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Coco & Eve Shampoo Brush. Gentle Massage Brush with Soft Bristles to Exfoliate Scalp, Remove Dead Skin, Dandruff and Boost Circulation for Hair Growth.

How the score was built

Amazon ratings
80

used for the Bayesian percentile

Raw star average
4.5 / 5

unadjusted Amazon mean

Bayesian avg
4.38

raw rating shrunk to the category prior

Reviewer-graph z
0.066

bias-corrected vs. each reviewer's baseline (2 qualifying)

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Same category · Beauty & Personal Care

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