Shop by concern · Thinning hair
You can see more scalp through your parting. Your ponytail is half what it was. Every wash leaves more hair in the plughole, and the supermarket shampoo you have been using is doing nothing about it, because it was never designed to. Grow Me® is 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 it can actually work. 6.5 million bottles sold since 2012, 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. 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. 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.
The routine most thinning-hair customers stay on
UK MadeCancel in two clicks from your account. No fees.
Already have a conditioner you love
UK Made
Stops fine lengths snapping between washes
UK MadeWhether 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, heat-damaged or bleached lengths
Protect Me® Leave-In Conditioner & Heat Spray
Stops heat and colour damage snapping fine strands
InstaHair Hair Building Fibres
Instant cover for a visible parting or crown, five shades
Nobody was paid for these. Every photo was uploaded by the customer with their verified review, because they saw something change in the mirror and wanted to show it. Lightly trimmed 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.”
5 months inCustomer's own photo“Since using the shampoo and elixir 5 months ago, my hair is definitely healthier, softer, fuller and more vibrant. I would recommend this product to anyone trying to prevent hair loss.”
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.”
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?"
Root causes
Thinning rarely has one cause. Hormones, stress, diet, heat styling and the wrong shampoo stack up, and most people are fighting two or three at once. The two you can change this week are breakage and scalp build-up, and that is exactly what Grow Me® is built for.
Finer strands with age
Each hair gets narrower over the years, so the same number of hairs covers less scalp.
Hormone shifts
Perimenopause, menopause and changes after pregnancy can reduce density, especially along the parting.
Breakage
Fine hair snaps more easily with heat, bleach and tight styles, leaving short broken lengths.
Heavy products
Rich shampoos and silicones coat fine hair and flatten roots, which makes a thin parting more visible.
Nutrition
Low iron, protein or vitamin D can leave hair weaker. A GP blood test is the only way to know.
Genetics
Pattern thinning runs in families. A GP or trichologist can tell you if that is the main cause.
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?"
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. The sulphate-free switch is the first thing you feel: hair that is clean without being stripped, and a scalp that feels fresh rather than tight.
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Your 90 days
Less hair on the brush
Lupine protein and biotin reinforce fine strands so fewer snap. You notice it on the pillow, in the plughole and on the brush before you notice it in the mirror.
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Your 90 days
Fuller-looking hair
With less breakage, more of your hair reaches its full length, so the parting looks less wide and the ponytail feels thicker. This is where most customers decide not to stop.
Start my 90-day upgradeFAQs
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 thinning hair is sulphate-free, light on the roots and made to strengthen fine strands. Grow Me® Shampoo is UK-made, vegan and free from sulphates and parabens, and in an independent study 82% of users said their hair felt thicker after three months.
Thinning caused by stress, illness, diet or breakage often improves once the cause settles and hair is handled more gently. Genetic thinning is long-term and needs a doctor's advice for medical treatment. A cosmetic routine helps the hair you have look and feel thicker in either case.
Yes, but only on the lengths and ends, never the scalp. Conditioner stops fine hair tangling and snapping when you comb it. Condition Me® is light enough for fine hair and uses shea butter and lupine protein to help fragile tips resist breakage.
Wash with a light shampoo, dry roots upwards with a cool setting and part your hair on the other side. For instant coverage, sprinkle InstaHair building fibres over the parting. They cling to existing hairs and come in three shades.
Because it is a different product. Supermarket shampoos are mostly water and sulphate detergents, built to foam and rinse. Grow Me® is sulphate-free and formulated around caffeine, biotin, rosemary, niacinamide, argan oil and lupine protein, ingredients chosen for the scalp and the hair fibre rather than for lather. It is made in the UK, and on subscription it costs £12.71 a bottle, which works out well under £1 a wash.
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 it. Grow Me® is a cosmetic shampoo that reduces breakage and keeps the scalp in good condition while you use it. Stop, and over a few months your hair gradually goes back to how it was. That is why most customers treat it as a routine they keep, not a one-off fix.
Why people trust Watermans
Not a wash-and-go shampoo. A 90-day hair upgrade.
Stop washing with a shampoo that was never built for thinning hair
Still washing with a supermarket shampoo and wondering why nothing has changed? 6.5 million bottles since 2012. Blind-tested for three months. Made in the UK. The Grow Me® set on subscription from £22.91 a month, covered by the 90 Day Promise.
