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Over 5 million bottles sold since 2012
Visible results in 90 days
14 years of proven results
Clinically tested active ingredients

Hair Growth Shampoo – Sulfate-Free, Biotin, Rosemary, Niacinamide & Caffeine

Sale price£14.95 GBP

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Over 5 million Grow Me Shampoo bottles sold since 2012
Winner of the Queen's Award for Enterprise — the only UK haircare brand to hold this honour
Trusted by trichologists and doctors worldwide
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COMPLETE YOUR ROUTINE

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Sarah Sullivan

“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.”

Sarah Sullivan, Certified Trichologist, Sheffield, UK

Trichology Clinic

Dr Anthony Pearce

"Quality dedicated hair growth treatments such as the Watermans 'Grow Me' range is an excellent starting point to consider. Diligent use for 3-4 months can see a reduction in hair thinning and the hope of healthier hair growth."

Dr Anthony Pearce, Specialist Trichologist, Oatley, Australia

Anthony Pearce Trichology

Dr Nick Fisherman

"Watermans products have been a lifesaver for almost everyone of our clients and patients, 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 and more importantly they possess DHT blocking properties, Watermans shampoo has helped hundreds of my patients including myself and my wife."

Dr Nick Fisherman, Specialist Trichologist, Wyndham, Australia

Hair & Skin Club

Not sure what to buy? Ask me anything — about your hair, my life, or how I started Watermans. I can even add products to your basket for you.

More hair in the drain than on your head? You're not imagining it.

It starts small — a few more strands on the pillow, a parting that looks a little wider, hair that won't hold the way it used to. Then one day the light catches it in the mirror and it lands: thinning hair doesn't just change how you look, it chips away at how you feel.

You don't need a prescription or a clinic to do something about it. You need to start strengthening the hair you've still got — today.

Grow Me® Shampoo is the UK's most trusted hair growth shampoo. Over 5 million bottles sold since 2012, and the only UK haircare brand to win the Queen's Award for Enterprise.

A salon-professional, sulphate-free formula with caffeine, biotin and rosemary — working with your hair to support a healthy scalp, reduce breakage, and leave hair visibly fuller and thicker-looking with consistent use. Hair that feels like yours again.

Key ingredients & what they do for your hair

  • Biotin — a building block of keratin, the protein that forms every strand; known for supporting hair strength.
  • Caffeine — studied for refreshing and energising the scalp at the surface (that's the tingle you feel).
  • Rosemary Extract — researched for supporting scalp comfort and a balanced environment.
  • Niacinamide — known for improving shine and manageability.
  • Allantoin — known for soothing and comforting the scalp.
  • Hydrolysed Lupine Protein — supports hair-fibre resilience and helps reduce breakage.
  • Argan Oil — rich in vitamin E; nourishes and helps protect against dryness and snapping.

Sulphate-free. Paraben-free. Palm oil-free. Vegan. Cruelty-free. Made in the UK.

Biotin

Biotin

Caffeine

Caffeine

Rosemary

Rosemary Extract

Niacinamide

Niacinamide (Vitamin B3)

Lupine Protein

Hydrolyzed Lupine Protein (ANAGELINE®)

Hair Growth Shampoo: What Dermatologists Want You to Know

The average human head loses between 50 and 100 hairs per day. When that number creeps higher, it is not always genetics — it is often a signal that the scalp environment has deteriorated. A clinically informed hair growth shampoo addresses this by restoring the conditions that follicles need to function at full capacity. The hair growth cycle consists of three phases: anagen, catagen, and telogen. Effective thinning hair treatment works by extending the anagen phase and reducing premature entry into telogen, which is the resting phase where shedding occurs. Ingredients like caffeine have been shown in published dermatological studies to prolong anagen by counteracting the effects of 5-alpha reductase and testosterone at the follicular level. This is why ingredient selection matters far more than brand promises.

The UK Hair Loss Crisis in Numbers

According to the NHS, androgenetic alopecia affects approximately 50 percent of men over 50 and 50 percent of women over 65 in the United Kingdom. But the conversation around hair loss solutions has shifted dramatically in the past decade. Younger demographics — women in their twenties and thirties dealing with postpartum shedding, iron deficiency, and stress-related telogen effluvium — now represent the fastest-growing segment seeking hair thickening products. The demand for non-pharmaceutical, natural hair growth products has surged because people want results without the side effects associated with finasteride or the inconvenience of topical minoxidil. The best shampoo for hair growth in this new landscape is one that bridges the gap between cosmetic haircare and clinical scalp therapy.

Ingredient Hierarchy: What Separates Effective Hair Regrowth Treatment from Marketing

Not all actives are equal and not all formulations deliver them effectively. A hair regrowth treatment should be evaluated on three criteria: penetration, concentration, and synergy. Rosemary oil is a good example. A 2015 randomised comparative trial published in SkinMed found that rosemary oil applied over six months produced hair count increases comparable to 2 percent minoxidil. But this only works when the rosemary extract is formulated to remain on the scalp long enough to absorb. Biotin operates differently — it reinforces the keratin matrix that forms the physical structure of each strand, making it essential in any hair strengthening shampoo. Hydrolysed lupine protein fills a third role by bonding to micro-fractures in the hair cuticle, physically reducing the breakage that makes thinning visible. When these three mechanisms work in concert — follicle stimulation, structural reinforcement, and cuticle repair — the result is a genuine scalp treatment for hair loss rather than a cosmetic illusion.

Why Shampoo Alone Is Not Enough: The Case for a Complete System

The scalp is only in contact with shampoo for two to three minutes per wash. That is a narrow window for active delivery. This is precisely why leading trichologists recommend a layered approach. A hair growth shampoo opens the cuticle and deposits the first wave of actives. A conditioner seals them in while adding structural proteins that create immediate hair thickening. A hair density serum or overnight hair growth serum then provides sustained release of nutrients during the eight to ten hours of sleep when cell turnover and follicular activity peak. This three-tier system is the basis of every credible natural hair thickening treatment protocol used in clinical settings. For men, a complete hair growth kit for men removes the complexity of assembling individual products and ensures the correct ratios of actives are applied at each stage.

The Female Hair Loss Gap

Women's hair loss has been historically underserved by the industry. Most early hair loss solutions were developed for male pattern baldness and then remarketed to women without reformulation. The result is products that are either too aggressive for the female scalp or too weak to produce meaningful change. A shampoo for thinning hair women actually benefit from needs to account for hormonal fluctuations, the impact of pregnancy and breastfeeding on nutrient stores, the damage caused by colouring and heat styling, and the increased sensitivity that often accompanies female pattern thinning around the temples and parting line. Gentle does not mean ineffective — it means the formulation respects the biology while still delivering active concentrations that produce visible improvement in hair density and retention over a 90-day cycle.

How to Evaluate Hair Loss Products Before You Buy

The UK market is saturated with hair thickening products making claims they cannot substantiate. Before investing in any thinning hair treatment, apply three tests. First, check whether the active ingredients have peer-reviewed research supporting their use for hair. Caffeine, rosemary, biotin, and lupine protein all do. Most proprietary blends with trademarked names do not. Second, look at the brand's track record. A company that has sold over five million units and holds a Queen's Award for Enterprise has been subject to a level of scrutiny that newer brands have not. Third, read reviews from verified purchasers who have used the product for at least three months — hair operates on a cycle, and any honest hair regrowth treatment will set that expectation rather than promising overnight transformation. The best natural hair growth products earn loyalty through transparency and consistent results, not aggressive marketing.

Best hair growth shampoo UK – Watermans Grow Me
Hair Growth Shampoo – Sulfate-Free, Biotin, Rosemary, Niacinamide & Caffeine Sale price£14.95 GBP