Shop by concern · Hair loss
More hair in the plughole than there used to be. A parting you keep checking in the mirror. A hairline you have started hiding under a hat or a fringe. Hair loss has a dozen causes, from hormones and stress to low iron and plain age, and most people have more than one going on at once. The cause is yours and your GP's to work out. What you wash with is the bit you control today, and it matters more than people think, because hair that snaps halfway down never gets the chance to look full. Grow Me® is not a wash-and-go supermarket shampoo. It is sulphate-free, packed with caffeine, biotin, rosemary, niacinamide and lupine protein, and left on the scalp for 3 to 4 minutes so it can actually work. For men and women. Made in the UK since 2012, 6.5 million bottles sold, and in an independent three-month study 83% said their hair looked fuller.
Sources: NHS, American Academy of Dermatology, British Association of Dermatologists. These are population figures, not results from our products.
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 a scalp that is already losing more hair than it should, and rinses straight down the drain. Grow Me® is built the opposite way: no sulphates, a concentrated blend of expensive hair growth ingredients, and a method. Massage it 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 calmer 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. It works for men and women, alongside whatever your GP recommends, and it is the same routine whether your hair loss is hormonal, stress-related or just the way your hair is going. The results come from using it. Stop, and over a few months your hair drifts back. 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®.
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.
Root causes
Most hair loss is one of these, and plenty of people have two at once. The medical side is for your GP. What you wash with is yours to control. Every card ends with the one thing you can do today.
Menopause, perimenopause, HRT changes, PCOS, thyroid problems and the contraceptive pill all change how long each hair spends growing, so the parting widens and the ponytail thins. Your GP can test for most of these. Wash with a routine that strengthens what you keep and does not strip the scalp. We go deeper on our hormonal hair loss page.
A shock, an operation, a high fever, Covid, a bereavement or a hard year pushes a crowd of hairs into their resting phase at once. They shed together two to three months later, and for most people it is temporary. Keep the routine gentle and consistent while it works through. More on our stress hair loss page.
Low iron is one of the most common causes of shedding in women, and crash diets, weight loss surgery and low protein starve hair of what it is made from. Hair is last in the queue when the body is short. Eat properly, and ask your GP for a ferritin check if you feel wiped out.
Heat, bleach, tight ponytails, rough towels and brushing wet hair snap strands halfway down. Broken hair has no white bulb on the end and looks exactly like thinning at the roots. This is the easiest one to fix: sulphate-free washing, a conditioner on the lengths, heat protection, and a weekly mask.
Pregnancy hormones hold on to extra hair for nine months, then let it all go at once around month three or four. It can look alarming on the pillow and in the plughole, and it is normal. Most mums see it settle by the first birthday. Our postpartum page has the full picture.
Pattern hair loss runs in families, in men and women. Each strand grows finer and the hairline, temples or crown thin first. No shampoo changes your genes, and we will not pretend otherwise. A GP or trichologist can confirm it, and a scalp that is not stripped every morning keeps the hair you have looking its fullest.
See your GP if hair comes out in round patches, falls out suddenly, your scalp is itchy, sore or scaly, or you feel unusually tired, cold or low alongside the shedding. Blood tests for iron, thyroid and vitamin D are quick and the common causes are treatable. A cosmetic routine works alongside that advice, never instead of it.
Swipe to see all 7 →
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 hair loss
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
Scalp feels deep-cleaned and refreshed. Hair feels softer and detangles more easily.
Build my routine
Your 90 days
Less breakage
Fewer snapped strands on your brush and pillow. Lengths feel stronger and look shinier.
Build my routine
Your 90 days
Fuller-looking hair
Hair looks fuller and feels thicker as less of it breaks. 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 shampoo for hair loss cleans the scalp gently, has no harsh sulphates, is left on the scalp long enough to work and strengthens fragile strands against breakage. Grow Me® Shampoo is made in the UK, combines caffeine, biotin, rosemary, niacinamide, lupine protein and argan oil, is rated 4.87 out of 5 from over 2,600 verified reviews, and in an independent three-month study 83% of users said their hair looked fuller. It suits men and women.
No shampoo can stop medical or genetic hair loss, and any brand that claims otherwise is overselling. A good shampoo reduces breakage and keeps the scalp in good condition, which helps the hair you have look fuller. If hair is falling out suddenly or in patches, see your GP first.
See your GP if hair falls out suddenly, in round patches, with an itchy or sore scalp, or if you are worried. Blood tests can check iron, thyroid and vitamin levels. A cosmetic shampoo works alongside medical advice, never instead of it.
Hair grows on a slow cycle, so one bottle is enough to feel a cleaner scalp and softer hair, but not enough to judge fullness. One 250ml bottle used as directed lasts about a month. Our independent consumer study ran for three months, and the Watermans 90 Day Promise needs three bottles' use, which is why the plan delivers monthly.
Massage it into a wet scalp and leave it for 3 to 4 minutes so the actives have contact time, then rinse. Follow with Condition Me® on the lengths. Use it four to five times a week. In our study, 122 people used it four times a week for three months.
Yes. Grow Me® suits men and women of all hair types, including colour-treated, curly and Afro hair. It is sulphate-free, paraben-free and vegan, and it is made in the UK.
Yes, at any time, from your online account, with a clear cancel button. No calls, no emails, no fees. You can also pause, skip a delivery or change how often it comes. Cancelling takes effect before the next scheduled payment.
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.
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
