The hair growth shampoo that reduces hair loss and increases hair density*
Grow Me® puts seven ingredients on your scalp every wash: caffeine, biotin, rosemary, niacinamide, lupine protein, argan oil and allantoin. Independently tested on 122 people for three months. 6.5 million bottles sold.
Queen's Award for Enterprise · PETA-listed cruelty-free · Stocked in Boots and 500+ salons
Why people trust Watermans
PETABusiness Friend6.5 million bottles sold since 2012 · 90 Day Money Back Guarantee
122 people used unbranded Grow Me® Shampoo four times a week for three months. Here is what they said.*
Each page explains the likely cause, what you can control, and the routine we recommend for it.
2 minutes
Every Watermans formula is built on ingredients with their own test data, combined so they work on the scalp and the strand together. Read the science behind Watermans.
Our actives are tested by the labs that make them. Our lupine protein was tested in the lab and on volunteers by our ingredient manufacturer. Caffeine, biotin, rosemary and niacinamide are among the most studied hair ingredients there are.
Our lupine protein is a trademarked active from our ingredient manufacturer: a hydrolysed lupine protein rich in peptides, trace elements and vitamins. It is in Grow Me® Shampoo and Grow More® Elixir.
Most shampoos lean on one hero ingredient. Grow Me® combines caffeine, biotin, rosemary, niacinamide, lupine protein, argan oil and allantoin, so the scalp and the strand are looked after in the same wash.
We have watched thousands of hair loss brands and products come and go, every one claiming to combat hair loss. Since 2012 Watermans has sold 6.5 million bottles, won a Queen's Award for Enterprise and run a three-month consumer study on 122 people. We are still standing. We must be doing something right.
Ingredient tests are carried out by the ingredient manufacturer. Our own three-month consumer study of Grow Me® covered 122 people.
Most hair loss shampoos are a caffeine shampoo with a nice label. A supermarket shampoo is detergent and perfume. Grow Me® puts seven actives on your scalp for 3 to 4 minutes, every wash, and was tested on 122 people for three months.
If it is working, why would you stop?
*Based on an independent three-month consumer study of 122 people. See the note at the bottom of the page.
| Grow Me® Shampoo | Caffeine-only shampoo | Supermarket shampoo | |
|---|---|---|---|
| Reduces hair loss* | ✓ | ✕ | ✕ |
| Increases hair density, fuller-looking hair* | ✓ | ✕ | ✕ |
| Actives in every wash | Seven | One | None |
| Sulphate-free, no harsh detergents | ✓ | ✕ Usually not | ✕ |
| Left on the scalp so the actives can work | 3 to 4 minutes | ✕ Rinse off | ✕ Rinse off |
| Thicker, stronger, longer-looking hair* | ✓ | ✕ | ✕ |
| Tested on 122 people for three months | ✓ | ✕ | ✕ |
| Recommended by trichologists and hair loss surgeons | ✓ | ✕ | ✕ |
| Cruelty-free, and funds the fight against animal testing | ✓ | Varies | Varies |
| Made in the UK, Queen's Award winner | ✓ | ✕ | ✕ |
| Since 2012, 6.5 million bottles sold | ✓ | ✕ | ✕ |
| 90 Day Money Back Guarantee | ✓ | ✕ | ✕ |
Caffeine-only shampoos do not work. If caffeine alone grew hair, every coffee company would sell shampoo. Grow Me® works as a team: caffeine wakes up the scalp and stimulates the follicles during the 3 to 4 minutes the shampoo sits on your head, and that is what lets the others get to work. Biotin, rosemary, niacinamide and lupine protein go in. Allantoin calms the scalp. Argan oil does its own job on the strand. Some of these have been used on hair for thousands of years. All seven, every wash.
Leave Grow Me® on the scalp for 3 to 4 minutes before rinsing so the formula can work.
What it does for your hair and scalp
Speak with Our Co Founder Gail Waterman AI Avatar
What hair and scalp experts say about Watermans
Sarah Sullivan
CERTIFIED TRICHOLOGIST
“Waterman’s products offer a great foundation for clients struggling with thinning or fragile hair. I’ve noticed real improvements in both my own hair and my clients, from stronger strands to healthier scalp condition with consistent use.”
Sheffield, UK,
Trichology Clinic
Dr Anthony Pearce
SPECIALIST TRICHOLOGIST
"…the Watermans 'Grow Me' range is an excellent starting point to consider… diligent use for 3-4 months…"
Anthony Pearce Trichology
Oatley, Australia
Dr Nick Fisherman
SPECIALIST TRICHOLOGIST
"…they are sulfate free, no dangerous chemicals to harm people's hair and they are very rich in lots of good stuff such as Biotin, Caffeine, Rosemary, Niacinamide, Argan oil…"
Hair & Skin Club
Wyndham, Australia
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.”
Helping women and men restore hair confidence worldwide since 2012
If your hair feels weaker, looks thinner, or no longer has the body it once did, you are not alone. These changes often build slowly, leaving you frustrated by routines that promise results but deliver very little.
Watermans was created to do things differently. Since 2012, we have focused on improving hair condition, strengthening fragile strands, and helping reduce breakage, so hair stays on the head longer and looks fuller, healthier, and more resilient with consistent use.
Our carefully developed formulas combine biotin, rosemary extract, argan oil, caffeine, allantoin, lupine protein, niacinamide, vitamin B3, and silica to support scalp comfort and create the ideal environment for stronger-looking hair, without medical treatments.
Your hair is part of your identity. When it looks and feels right, everything else follows. Choose Watermans and take back control of how your hair looks and feels.
FAQs
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, see your GP.
The best shampoo for hair loss cleans the scalp gently, has no harsh sulphates, is left on long enough to work and strengthens the strand so less of it breaks. Grow Me® does all four with seven ingredients: caffeine, biotin, rosemary, niacinamide, lupine protein, argan oil and allantoin. In an independent three-month study of 122 people, 83% said their hair looked fuller.
Hair grows on a slow cycle, so give it the full 90 days. Most people notice a cleaner, calmer scalp and softer hair in the first weeks. Fullness takes longer, which is why our consumer study ran for three months and why the 90 Day Money Back Guarantee covers three months of use.
Both. Grow Me® and Condition Me® suit men and women of every hair type, including colour-treated, curly and Afro hair. We also make ranges for kids, for blonde and grey hair, and InstaHair® human hair extensions.
Use Grow Me® as directed for 90 days (three bottles) and if you are not happy, we refund your first order. Full terms are on the guarantee page.
Every Watermans formula is made in the UK and is PETA-listed cruelty-free. Our shampoo, conditioner and elixir are sulphate-free and paraben-free, and each has an independent safety assessment under EU and UK cosmetics law. Read more on the science page.
UK shipping is free on orders over £45. Spend £20 and we add free GrowPro® gummies to your parcel, spend £45 and you also get a free Moisturise Me® hand cream. We ship to 20+ countries.
A kiss of life for hair
*Based on an independent consumer study of 122 people (104 women, 18 men) who used unbranded Grow Me® Shampoo four times a week for three months. Most users said their hair loss had noticeably slowed down, they noticed less shedding and less hair loss when brushing, their hair density had increased, their hair looked fuller and healthier, and it felt thicker and stronger. Consumer perception results. Individual results vary. Watermans products are cosmetics, not medicines, and do not treat medical hair loss. Full study report available on request.
