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Hi, I’m Dr Harth!
I’ve been a dermatologist for over 30 years, and if there’s one thing I’ve learned, it’s that the little things we do every day - what we put on our skin, what we eat, how we take care of ourselves - can make a big difference. I created MDhair to deliver what I believe is the most effective, personalized approach to hair regrowth. I've tested the leading hair growth products on the market and compared them head to head.
Last updated: 5/27/2026
I set out on a mission to find the ultimate Hair Regrowth treatment—one that truly delivers on results, quality, and efficacy. With so many options on the market, it can be overwhelming to know which one is actually worth the investment.
Let’s be honest—brands aren’t always the most transparent, and marketing claims can be misleading. That’s why I took a methodical, hands-on approach to testing, ensuring that I could provide an honest, science-backed review.
Below, you’ll find a detailed breakdown of my findings, including how each hair growth product performs, key factors that influenced my ratings, and the subtle differences that make a big impact.
Before we dive into the product reviews, let’s talk about why selecting the right hair regrowth treatment is so important. Many people assume their hair loss is simply genetic or due to age, but other factors—like using the wrong treatment or lacking key ingredients—can play a major role.Here’s why finding the right product matters:
Uses clinically proven ingredients – Not all hair regrowth treatments are backed by science. The right formula contains ingredients with proven effectiveness in stimulating hair growth and reducing shedding.
Targets the root cause – Whether it’s hormonal imbalance, nutrient deficiencies, or scalp inflammation, an effective product addresses the underlying issue, not just the symptoms.
Minimizes side effects – Harsh chemicals can cause irritation, dryness, or even worsen hair loss. A well-formulated treatment supports hair health without unwanted side effects.
Boosts confidence – Thicker, healthier hair can transform your appearance and improve your overall well-being.
Switching to the right hair growth solution can make a noticeable difference in just a few months. Now, let’s get into the top products of 2025 and see which one delivers the best results.
I researched and evaluated eight leading hair regrowth solutions: MDhair, Ordinary, Nutrafol, Vegamour, DermzLabs, Scandanavian Biolabs, Viviscal, and Watermans.
Ingredient Effectiveness: Analyzed each formula, considering scientific research and dermatologist approval.
User Insights: Collected real customer feedback from Trustpilot, Reddit, and other online platforms.
Clinical Trial Data: Reviewed clinical studies from relevant brands to assess scientific credibility.
Comparative Results: Scored each product based on effectiveness, formulation quality, dermatologist approval, and overall value.
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Try NowWhat I Love
What could be better
My verdict
MDhair is revolutionizing hair regrowth with a clinically proven and dermatologist-designed approach. Unlike generic, one-size-fits-all treatments, MDhair’s formulas are customized to each individual’s needs, ensuring a targeted and effective solution.
With clinically tested ingredients and a commitment to research, MDhair’s formulations are developed with scientific rigor—backed by real clinical trial data to support their effectiveness. The results? Over 300,000 satisfied customers and countless before-and-after transformations showcasing visibly thicker, healthier hair.
Beyond effectiveness, MDhair offers convenience and personalization. Their delivery model ensures customers never run out of their tailored treatment, while the lightweight, fast-absorbing formulas make it easy to integrate into any routine.
For those seeking a proven, dermatologist-formulated hair regrowth solution with real results, MDhair is a standout choice.
What I Love
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My verdict
The Ordinary Multi-Peptide Serum for Hair Density is an affordable, peptide-based option from a well-known skincare brand, making it an accessible entry point for those just starting to notice thinning.
However, it's a standalone serum rather than a complete hair regrowth system, and it doesn't contain clinically proven ingredients like minoxidil. There's no personalization, scalp analysis, or tailored treatment plan — it's the same formula for everyone. Since hair loss isn't The Ordinary's specialty, those dealing with more advanced thinning or looking for a comprehensive, dermatologist-guided approach may find better results with a dedicated hair regrowth brand like MDhair.
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My verdict
Nutrafol is a good choice for those who prefer an all-natural, internal approach to hair growth and are ready to take four capsules a day for the long term. Its blend of vitamins, minerals, and botanical extracts supports overall hair health without harsh chemicals.
However, at £79 per month, it's pricey, and since it's a supplement, results take time. Unlike other treatments, it has a very limited choice of topical products for direct scalp application. Customization is also limited. While it can improve hair wellness, it works best when combined with a targeted treatment for faster regrowth.
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My overall rating
Vegamour GRO Hair Serum is a clean, topical alternative to traditional medicated hair treatments. Its plant-powered formula is well-suited for users who want a gentle, hormone-free approach to improving scalp health and supporting early signs of hair thinning. The serum absorbs quickly, leaves no residue, and aligns well with a natural beauty lifestyle. However, it may fall short for people with significant or hormonal hair loss and lacks robust clinical backing compared to some competitors, and raises concerns for people sensitive to bergamot oil. It's also not part of a personalized or AI-guided program, which limits its precision for individual needs.
Best for early-stage hair thinning and those seeking a natural, topical-only solution. Pairing with oral supplements or medicated treatments may be necessary for more advanced or hormone-related hair loss.
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My overall rating
Dermz Labs HairLXR Serum brings some interesting formulation choices, particularly the grape stem cell technology and prebiotic scalp ingredients. The leave-in format is a plus, and the clean formula at £27 makes it accessible for those curious about plant-based approaches.
However, it lacks clinical validation, contains no MHRA-licensed ingredients, and comes from a brand focused primarily on skin conditions. The review base is small, and there is no personalisation or medical guidance available.
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My overall rating
Scandinavian Biolabs stands out as one of the better, plant-based options for hair loss. The clinical trial data is genuinely impressive for a drug-free product, the formulations are clean, and the 150-day guarantee removes much of the financial risk.
However, the lack of clinically proven active ingredients means it may fall short for anyone with moderate to advanced thinning. The premium pricing also puts it in direct competition with more comprehensive solutions. There is no personalisation, no scalp analysis, and no access to medical professionals through the platform.
For users seeking a natural, drug-free starting point, Scandinavian Biolabs is a credible choice. But for those who want a dermatologist-designed, personalised system that combines clinically proven ingredients with scalp diagnostics and ongoing medical support, MDhair provides a more complete and targeted solution at a comparable or better value.
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My overall rating
Viviscal is a science-backed supplement for people seeking to improve hair density and reduce thinning without using medicated ingredients. Its standout feature is the AminoMar™ marine complex, which is clinically shown to promote stronger, healthier hair. With additional nutrients like biotin and vitamin C, Viviscal supports hair from within by targeting internal nutritional factors. However, it's not a personalized solution and does not address hormonal causes of hair loss. It also lacks a topical component, which could limit its efficacy compared to more integrated treatment systems. Because it contains fish-derived proteins, it's not suitable for all diets.
Viviscal is a solid, clinically supported option for general hair thinning, especially for women. But for those with hormone-related hair loss or seeking an all-in-one plan (oral + topical + customization), other solutions may offer more value.
What I Love
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My verdict
Watermans has built an impressive UK brand with strong retail presence, affordable pricing, and a clean ingredient list. The Queen's Award recognition and over 5 million bottles sold speak to genuine consumer demand and satisfaction, particularly among users looking for a natural, daily-use shampoo to support overall hair health.
However, it is important to set realistic expectations. Watermans is a cosmetic haircare brand, not a clinical hair regrowth treatment. It does not contain MHRA-licensed active ingredients, offers no personalisation, and provides no access to medical professionals. For users dealing with general thinning, breakage, or scalp health, it can be a solid addition to a routine. But for clinically meaningful hair regrowth, especially in cases of hereditary or hormonal hair loss, a dermatologist-designed, personalised system like MDhair that combines proven active ingredients with scalp imaging and medical support will deliver more targeted and measurable results.
After researching and comparing all the options, it’s clear that MDhair stands out as the best choice for hair regrowth. Its customized approach, dermatologist backing, and clinically proven results make it the most effective option.
If you’re looking for long-lasting, noticeable results with a formula designed for your unique needs, MDhair is the best investment for your hair regrowth journey.
Click here to try MDhair for up to 60% off, plus 180-day money back guarantee.
I hope this guide helps you find the perfect hair growth product for your needs. Let me know which one you try—I’d love to hear your experience!
Hi, I’m Dr Harth!
I’ve been a dermatologist for over 30 years, and if there’s one thing I’ve learned, it’s that the little things we do every day—what we put on our skin, what we eat, how we take care of ourselves—can make a big difference. I love breaking down the science of skincare and haircare and making it easy for people to find what actually works.
