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Garnier Olia 5.0 Brown, oil-powered, no-ammonia. 100% grey coverage. Luminous, long-lasting, vibrant brown hair color with ex
Olia

Garnier Olia 5.0 Brown, oil-powered, no-ammonia. 100% grey coverage. Luminous, long-lasting, vibrant brown hair color with ex

4.5 / 5 ★★★★★ 1,766 ratings

Data reviewed 27 July 2026

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Ranked from real customer ratings, not sponsored placement. How we rank →

Overview

The Garnier Olia 5.0 Brown, oil-powered, no-ammonia. 100% grey coverage. Luminous, long-lasting, vibrant brown hair color with ex is one of the most popular choices in Hair Care right now. With an excellent 4.5/5 average rating, it's one of the best-reviewed options in its category.

Beyond AmazonRated consistently well away from Amazon, too.
  • Amazon4.5/51,766 ratings
  • Superdrug4.5/52,060 reviews · source

Ratings gathered from public product pages at UK retailers. We link to each source so you can check.

Key features

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