Longing for hair growth products that actually work? We’ve got you. From stimulating scalp shampoos to dreamy overnight serums, we’ve found the best formulas for speed and strengthening - bonus, they’re enjoyable to use, too. Whether you’ve experienced hair loss due to thinning, breakage or slow growth, there are so many ways we can encourage it back to its former crowning glory.
So, we’ve tried and tested some of the very best hair growth products to inspire a hair growth routine that doesn’t just lengthen, but supports overall health, too. Scroll to discover the ingredients to search for and the products to pick to get to the root of your problems.
Best for a timeless remedy: inde wild Champi Hair Oil, £56
Best for dreamy overnight results: TYPEBEA G1 Overnight Boosting Peptide Serum, £43
Best for value: Sephora Collection Strengthening Hair Serum - Fortify + Increase density, £17.99
Best for salon-quality treatment: Kérastase Densifique Masque Densité, £47
Best for strengthening hair: FABLE & MANE HoliRoots Pre-Wash Strengthening Treatment Hair Oil, £46
By Sephora UK Haircare Editorial Team
Writers and experts
Updated: 5 August 2025
Shop all Hair Growth Products at Sephora UK.
Serum for your hair? That’s right, and we’re into it. This fast-acting, overnight hair growth serum by Typebea will help your hair grow, reduce shedding, and encourage it to be healthier than ever. The star of the show is its clinically proven Baicapil™ and the powerful blend of actives and Peptides which rejuvenate the hair follicle for stronger strands. And, with no wash-out required, you can just get up and glow.
Baicapil™, actives and Peptides
“So easy to use, feels lovely on the scalp. My hair is definitely fuller and the areas of regrowth can be seen.” - Debra, Customer Review
Want healthier hair naturally? Then this is the hair growth serum for you. Made with 99% ingredients from natural origin, including the wonder ingredient, Biotin for hair, it’s one of our faves for fuller hair. Not only is it packed with Biotin, but vegetal Proteins, too - which are similar in structure to Keratin - offering incredible strength and thickness. Lock it in!
Biotin and Phyto Proteins
“This is incredible, it made my thinning hair grow within months. I hope this restocks.” - Customer Review
If you’re looking for blow-out level bounce, then try the Kérastase Densifique Masque Densité. This replenishing hair mask is packed with Stemoxydine for stimulating hair growth and Hyaluronic Acid for deep hydration. Despite its name, the gel-like texture is super light and easily washes out for instantly thicker locks. Warning: volume this loud might cause compliments.
Stemoxydine and Hyaluronic Acid
“This luxurious hair masque was easy to use and left my hair feeling thicker, fuller, softer, and shinier.” - Kaydee, Customer Review
Like the name suggests, this reparative and restorative conditioner gives hair back its bounce. Formulated with a blend of Avocado, Buriti Seed, and Blue Tansy flower oils, it boosts Protein levels, restores elasticity and prevents breakage for kinky, curly, and coily hair. Top tip: leave on for even longer and unmask unbelievable shine.
Avocado, Buriti Seed and Blue Tansy flower oils
“I LOVE the smell of the blue tansy conditioner, it’s subtle and sweet. I was also pretty amazed about the immediate change in my hair. Before it felt so coarse (other conditioner, most likely) but now it’s sooo soft and makes my 3B curls look and feel amazing.” - Meghan, Customer Review
Hard water can play havoc with our hair, so if you’ve had enough of dry, brittle locks, say hello to Hello Klean’s Full Length Anti-breakage Hard Water Shampoo. The Charcoal-infused formula is deep-cleansing and gentle, breaking down the moisture-blocking crystals and transforming weighed-down hair to soft and silky strands. It gives hard water a hard no.
Bamboo Charcoal, Licorice Root, Oat Protein, and Lactic Acid
“This shampoo, in conjunction with the Hello Klean shower filter has brought my hair back to life. I have less fallout volume I haven't had for a long time. Also the bottle is very pretty in the bathroom and the shampoo is overall a pleasant experience!” - Customer Review