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Watermans Grow Me® Hair Growth Shampoo - Not just a Caffeine Shampoo we include Biotin, Argan Oil, Rosemary, Niacinamide. Hai
WATERMANS

Watermans Grow Me® Hair Growth Shampoo - Not just a Caffeine Shampoo we include Biotin, Argan Oil, Rosemary, Niacinamide. Hai

★4.2 / 5 ★★★★☆ on Amazon · 15,247 customer ratings · recorded 23 Jul 2026
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Live Amazon price · product details checked 5 September 2026

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Overview

WATERMANS Grow Me® Hair Growth Shampoo - Not is one of 50 hair care products on our shelf, compared on what buyers rated it, how many of them there were, and what it costs today. Here is how the maker describes it: Struggling with thinning, fine, weak, or damaged hair? Our Grow Me Shampoo is uniquely formulated to help reduce hair loss due to breakage, helping you achieve longer. Proudly recognised with the UK’s highest business honour, The Queen’s Award, this shampoo is designed to help support the appearance of thicker, stronger, and healthier-looking hair. That is the maker talking, not us, so read it as a claim rather than a finding. Buyers have it at 4.2 out of 5 from 15,247 ratings. We work out below what that is worth against everything else on the shelf.

At a glance
Brand
WATERMANS
Amazon rating
4.2 out of 5, from 15,247 ratings
Against the shelf
0.3 below the hair care median of 4.5
Our placing
49 of 50, weighted for how many people rated it
Where the price sits
Dearer end of a shelf running £1.98 to £56.00
How settled
A solid base of ratings behind the score

Shelf price range checked · details

How it compares on the hair care shelf

Across the 50 rated hair care products we track, the middle of the pack sits at 4.5 out of 5. This one scores 4.2. That's inside the bottom quarter of the shelf. It isn't a warning, but better-rated options do sit alongside it at similar money, so you would want a specific reason to pick this one.

Behind that score sit 15,247 ratings, against a shelf median of 4,347. That's a deep enough base for the score to be stable, and it is the reason we rank on volume as well as stars.

Price-wise it falls in the top third of a shelf that stretches £1.98 to £56.00, with £6.67 in the middle. Paying above the middle of the shelf needs a reason the star rating does not supply, because on ratings alone the extra money is not buying an advantage here.

Shelf prices checked · details

Worked out from the 50 hair care products we track, not from the brand's own claims. How we rank →

Key features, as the manufacturer lists them

Taken from the product listing via Amazon's product API. These are the seller's claims, not our test results.

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