Shop all · Hair growth products
You have tried the supermarket shampoo, the vitamins from the chemist, maybe a serum, and your hair looks the same as it did last year. The problem is not you. A wash-and-go shampoo is built to foam and rinse, not to do anything for your scalp. Watermans hair growth products are a different way to wash: sulphate-free, packed with caffeine, biotin, rosemary, niacinamide and lupine protein, and left on the scalp for 3 to 4 minutes so the ingredients can actually work. Made in the UK since 2012, 6.5 million bottles sold, and in an independent three-month study 83% said their hair looked fuller.
Ayton Global Research ran the study from blank, unbranded bottles, four washes a week. Consumer perception results, individual results vary. See every result.
A bargain shampoo foams, strips the scalp with sulphates and rinses straight down the drain. Every Watermans hair growth product is built the opposite way: no sulphates, a concentrated blend of expensive hair growth ingredients, and a method. Massage Grow Me® into the scalp, leave it for 3 to 4 minutes, four to five washes a week, then Condition Me® on the lengths. One bottle lasts about a month. In month one your scalp feels cleaner and your hair softer. By months two and three the difference shows: less breakage, less hair on the brush, fuller-looking hair. That is why our consumer study ran for three months, why the 90 Day Promise needs three bottles, and why most customers subscribe. The results come from using it. Stop, and over a few months your hair drifts back to how it was. Keep going, and the fuller look stays.
Our best selling routine. 6.5 million bottles sold since 2012
Cancel in two clicks from your account. No fees.
Best selling hair growth shampoo. 6.5 million bottles sold
The overnight leave-in step. Works while you sleep
Ideal if you cannot wash 4 to 5 times a week. Keeps the routine working between washes.
Whether you buy today or not, here is our advice after 14 years: upgrade your wash-and-go routine. Watermans shampoo needs at least 3 minutes on your scalp to work as intended.
The Watermans 90 Day Promise. Register when your first bottle arrives, use it as directed for 90 days, and if you are not happy we refund your 90-day supply. How it works.
Add to your routine with one tap. Every product below is made in the UK, sulphate-free and designed to work alongside Grow Me® and Condition Me®.
Masque Me® Repairing Hair Mask
Weekly deep repair for dry or damaged lengths, with the same hair growth ingredients as Grow Me®
Camellia & Black Castor Hair Oil
For your hair, skin and bath. Cuts drying time by up to 50% and leaves skin deeply hydrated
Protect Me® Leave-In Conditioner & Heat Spray
Stops heat, colour, chlorine and sun damage. Spray in before every heat tool
Hair, skin and nails vitamins. Biotin and zinc contribute to the maintenance of normal hair
InstaHair Hair Building Fibres
Instant cover for a visible parting or crown, five shades
Watch
Tap a video to play with sound.
"I tried everything to fix my thinning hair"
Why she switched to caffeine, biotin and argan oil
"Now I love brushing my hair"
Caroline answers "how are you getting on with these?"
Most hair growth shampoos are built around a single active. Usually caffeine, on its own. Grow Me uses six, because thinning hair rarely has one single cause.
Biotin, Niacinamide, Caffeine, Hydrolyzed Lupine Protein & rosemary complex for visible results in as little as 90 days
Award-winning, salon-professional formula made in the UK
Sulphate-free, Vegan Society approved & PETA cruelty-free approved, gentle enough for daily use
Backed by trichologists and a 90-day money-back guarantee
Independent consumer study: 83% agreed their hair looked fuller, 82% agreed their hair felt thicker and 75% agreed they noticed less shedding after using Grow Me®
More from the range
All made in the UK, all sulphate-free. Salon sizes for families, a travel set for holidays, and the kits that bundle the routine.
Every photo below was uploaded by the customer with their verified review. We have trimmed some quotes for length. Results vary from person to person.
50 days inCustomer's own photo“After 50 days I am very pleased. My hair might not feel thicker in a ponytail but it looks thicker and you can't see my scalp through my hair any more. I have ordered my second bottle to carry on for the recommended 3 months.”
7 weeks inCustomer's own photo“I've been using this shampoo and conditioner for about 6 to 7 weeks due to my hair randomly thinning. The improvement I've seen already is amazing. My confidence with my hair is much better and I've since purchased the set again and the hair mask.”
7 months inCustomer's own photo“I've been using this shampoo and conditioner for 6 to 7 months now and the difference in my hair is amazing. The condition of my coloured blonde hair is amazing, no breakage, super soft. I love it that much I bought the salon size in both.”
Long-term userCustomer's own photo“Rapid weight loss after surgery caused dramatic hair loss. I truly thought I was going to go bald. Then I discovered Watermans and won't use any other shampoo and conditioner. My hair is in beautiful condition, it's thicker than ever and I couldn't be happier.”
First weekCustomer's own photo“I haven't been using this product for a week yet and I'm already seeing improvement. My hair is fuller, it's glossy. I also have scalp psoriasis and it hasn't bothered me at all since I've been using this product.”
2 years inCustomer's own photo“I have been using Watermans for over 2 years and the proof is in my photos. I was a tape hair extension person for years so my hair was damaged and short with ratty ends. Now everyone asks me what I use.”
Repeat buyerCustomer's own photo“I had very thin hair before this shampoo. My hair is so healthy and thick now. I don't want to use any other shampoo but Grow Me.”
Ask the founder
Not sure which hair products you need? Ask Gail.
Gail Waterman co-founded Watermans in 2012 and has answered thousands of hair questions since. Her AI avatar on our homepage will ask about your hair, tell you which products suit it and which you can skip, and add them to your basket for you. Ask her anything, from "which products do I need for thinning hair?" to "how long until I see a difference?"
Not a wash-and-go shampoo. A 90-day hair upgrade.
Stop washing with a shampoo that was never built for the hair you want
Still washing with a supermarket shampoo and wondering why nothing has changed? 6.5 million bottles sold since 2012. The Grow Me® set from £22.91 a month on subscription, covered by the 90 Day Promise.
Your 90 days
Cleaner scalp, softer hair
Grow Me® on the scalp for 3 to 4 minutes, four to five washes a week. Condition Me® on the lengths. Hair detangles more easily and the scalp feels refreshed.
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Your 90 days
Less breakage
Fewer snapped strands on your brush and pillow as lupine protein and biotin reinforce the fibre. Lengths feel stronger and look shinier.
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Your 90 days
Fuller-looking hair
Less of your hair is breaking, so it looks and feels fuller. In our study, 83% said their hair looked fuller at this point. Keep going to keep the result.
Build my routineFAQs
Watermans products are cosmetics. They are not medicines and do not treat medical hair loss. If your hair is falling out suddenly, in patches, or you are worried, please see your GP or a trichologist first. Prices, stock and review counts on this page were checked in October 2026.
The best hair growth products are a sulphate-free shampoo and conditioner you can use every wash, backed by real customer results. Watermans Grow Me® Shampoo and Condition Me® Conditioner are made in the UK, rated 4.8 from 4,752 reviews as a set, and in an independent three-month study 83% of 122 people said their hair looked fuller.
Cosmetic hair growth products do not change genetics or hormones, and no shampoo can regrow hair that has stopped growing. What they do is keep the scalp clean and refreshed and stop fragile hair snapping, so more of the hair you have stays on your head and looks fuller. If hair is falling out suddenly or in patches, see your GP first.
Start with the Grow Me® Shampoo & Conditioner Set. Two steps cover the scalp and the lengths, it is our best-selling routine, and it costs £22.91 a month on subscription. Add the Grow More® scalp elixir or GrowPro® gummies once the basics are in place.
Expect cleaner, softer hair from the first wash, less breakage by around six weeks and fuller-looking hair by eight to twelve weeks of washing four to five times a week. That is why the 90 Day Promise covers a full 90 days of use. Results vary from person to person.
Both. Every product here is unisex and suitable for colour-treated, curly and Afro hair. The formulas are sulphate-free, paraben-free, vegan and made in Britain.
This page lists every Watermans hair growth product. If shedding is your main concern, our best shampoo for hair loss page explains the causes, the routine and what to expect in the first 90 days.
Yes. Use the shampoo, conditioner, mask, hair oil or heat spray as directed for the full 90 days and, if you are not happy, the Watermans 90 Day Promise refunds you. Subscriptions can be paused, skipped or cancelled from your account in two clicks.
Yes. This is the part most people get wrong. Grow Me® is not a wash-and-go shampoo. Massage it into the scalp, leave it for 3 to 4 minutes so the caffeine and rosemary have contact time, then rinse. Four to five washes a week. Use it like a normal shampoo and you will get a normal shampoo's results.
The results come from using them. Grow Me® and Condition Me® are cosmetic products that reduce breakage and keep the scalp in good condition while you use them. Stop, and over a few months your hair gradually goes back to how it was. That is why most customers treat the routine as something they keep, not a one-off fix.
Why people trust Watermans
