Really liked Nanogen root thickening spray it arrived well packed in a recyclable package which could be used again.First time useing this product arrived on time by delivery service .
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Review summary
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What people talk about most
Based on these reviews
Very helpful when my original order went to thecwrong address, sent a replacement immediately. Now l have the product, l am absolutely over the moon with it! Makes my hair look so muh better, meaning... See more
Company replied
I started using Nanogen a few months ago on the advice of my hairdresser and it has changed my life. The Nanogen fibres have made my hair look so much thicker and healthier giving me so much more conf... See more
This scalp serum is the best hair growth product I have ever got my hands on! The texture is not oily at all and is very quickly absorbed onto the hair, without leaving any residue. After using this... See more
Company replied
Company details
Written by the company
The Science of Thicker Hair. With over 20 years experience, we are proud to be the experts in hair fibres. Nanogen were the first to launch Hair Fibres in the UK and have a patented delivery system perfect for men and women suffering from hair loss. All purchases from Nanogen.com come with a 30 day money back guarantee.
Contact info
730 Centennial Park, elstree, WD6 3SZ, Hertfordshire, United Kingdom
- 02084582500
- hello@nanogen.com
- nanogen.com
4.5
Excellent
668 reviews
Replied to 95% of negative reviews
Typically replies within 1 week
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Lovely shampoo.and conditioner makes my…
Lovely shampoo.and conditioner makes my hair feel thicker and softer
29 October 2025
Reply from Nanogen
Hi Shelia, thanks so much for your review. We are so happy that you are happy! It's great to hear that our Shampoo and Conditioner are supporting your hair health and having the hair thickening effect that we promise. It makes washing your hair so much better when you know that you'll have a good hair day afterwards. Enjoy your products!
Nanogen hair growth
Wow amazing product, very easy to use the growth of my hair was amazing, my hairdresser complimented on the length and how much thicker my hair had become never left my hair looking greasy after each use 10 out of 10
8 October 2025
Reply from Nanogen
Hi Sharon,
Thank you so much for your feedback on our Hair Factor Growth Treatment. This serum is so good at promoting new healthy hair growth and is perfect if you are looking to have longer hair or thicker hair. We are so pleased to hear that you are seeing such amazing results - and high praise coming from your hairdresser too! We hope you continue to enjoy our scalp serum. Thanks again for sharing your results!
Best hair growth product
This scalp serum is the best hair growth product I have ever got my hands on! The texture is not oily at all and is very quickly absorbed onto the hair, without leaving any residue.
After using this serum, my hair looks fuller than ever, with small hairs growing to surface. Also my hair texture has improved overall, is shinier and stronger.
8 October 2025
Reply from Nanogen
Hi Vassy, Thank you so much for your feedback. We are so happy to hear you are loving our Hair Growth Factor Treatment. It is such a good scalp serum and works so well in terms of improving scalp health and creating the best foundation for hair growth. We're so pleased that you are seeing results and great to hear about your new hair growth and that your hair is healthier all round. Thank you for sharing your experience!
Gives new life to hair
Very easy to apply.
Hair has grown thicker and healthier looking.
My thin hair is now thicker and new hair growth is thicker .
8 October 2025
Reply from Nanogen
Hi Barbara, thank you very much for your review. This pretty much sums up everything that we want our Hair Factor Growth Treatment to do! Our signature Hair Growth Factor complex really works, and we are thrilled that you are seeing the results for yourself. Thanks so much for sharing your feedback!
I WAS SCEPTICAL BUT IT REALLY WORKS.
I WAS SCEPTICAL BUT IT REALLY WORKS.
I DID NOT HOLD OUT MUCH HOPE FOR THE NANOGEN HAIR GROWTH FACTOR SERUM AS I HAVE TRIED OTHER PRODUCTS TO HELP WITH THINNING/HAIRLOSS WITH LITTLE SUCCESS, BUT I HAVE TO SAY THERE HAS BEEN A NOTABLE IMPROVEMENT IN MY HAIR VOLUME, AND 5 WEEKS INTO USING IT, THERE ARE SIGNS OF NEW HAIR GROWTH. THE PRODUCT IS EASY TO USE AND DOES NOT LEAVE MY HAIR GREASY (I AM PRONE TO GREASY ROOTS). I NOW HAVE MY DAD USING IT, AND WE HAVE SEEN HAIR GROWTH IN HIS BALD PATCH. HE IS DELIGHTED :-)
8 October 2025
Reply from Nanogen
Hello, thank you so much for sharing your thoughts and experience of our Nanogen Hair Factor Growth Treatment. It's always good to be sceptical, but we are thrilled to hear that you are seeing such a positive impact from using our scalp serum. We pride ourselves on being the leaders in hair thickening, so we always want to ensure our products deliver. We are so pleased that you have finally found a product that works for you. We love that the whole family are getting involved too. Hair growth for everyone!
I have light brown which is good but…
I have light brown which is good but having blonde in my hair i wanted to try blonde which i find too much of a sand colour
8 October 2025
Reply from Nanogen
Hi Angel,
We are very sorry to hear that you are not happy with your Nanogen Hair Fibres. We know that our fibres are so loved and we normally receive such positive reviews, so much so that we offer a money back guarantee if you are not 100% satisfied with your results.
We are more than happy to help you find the perfect match for your hair colour. Please do get in touch and contact Claire on hello@nanogen.com and she will be able to help you find the best shade for you. If we are not able to do this we can also support with a refund.
We look forward to hearing from you.
Great product
Great product my hair started thinning when I was going through the menopause but thanks to using this it seems to have slowed down quite alot. The scent of it is really nice and it lathers really well
8 October 2025
Reply from Nanogen
Hi Heather, thank you for your comments. It is great to get your feedback and we are so pleased to hear that our Nanogen products have helped with your hair thinning. Menopausal hair loss is super common, so you are not alone in this. We are very happy to be able to offer hair thickening solutions to support and it's great to know that you are seeing such positive results. Thank you for sharing your experience.
Reply from Nanogen
Thank you for sharing your thoughts - we are pleased to hear you are enjoying our Nanogen hair thickening products.
I found this product good but not very…
I found this product good but not very easy to use. As it is a liquid it runs everywhere but couldn’t get an even coverage. Maybe better as a lotion.
8 October 2025
Reply from Nanogen
Hello Mrs Hancock,
Thank you very much for sharing your feedback on our Hair Factor Growth Serum. We're pleased to hear that you are enjoying this hair treatment and would love to support with the application.
Please get in touch with Claire on hello@nanogen.com and we will be able to share some tips on how best to get the best coverage and hair growth results.
Excellent products and service
Excellent products and service just brilliant. I highly recommend their growth serum - it done a miracle work with my hair. From weak and thin hair after a few tubes of the serum my hair get changed to the healthier, has volume, grows more and it's the best serum ever tried.
7 October 2025
Reply from Nanogen
Hi Ruth, thank you so much for your review. We love to deliver hair miracles! We are so pleased to hear that you are experiencing such amazing results after using our Hair Growth Factor Treatment. To be 'the best serum you have ever tried' is very high praise and we are delighted to hold that spot! Thanks for sharing your feedback.
Didn't want to leave a review straight…
Didn't want to leave a review straight away, as like to try for a while, have had loads of shampoos claiming alsort. But hitting say it's actually my favorite and will be ordering again.
7 October 2025
Reply from Nanogen
Hi Marie, Thank you so much for your review. It's always a good idea to try things out first before making up your mind. We are so pleased to hear that you are loving our Nanogen Shampoo after giving a good test. It really does leave the most amazing clean feel, whilst also giving thicker feeling hair that looks fuller, wash after wash. We love to be a 'favourite'! Thank you for sharing your thoughts.
Reply from Nanogen
Thanks so much for sharing your feedback. Really pleased to hear all went well with your Nanogen order. We hope you enjoy your products.
First and probably not last order with them
This was my first order with that company. Delivery was fast. No problem with it.
8 October 2025
Reply from Nanogen
Thank you for your review. We are very pleased to hear that you are happy with your very first Nanogen order. Welcome to the Nanogen community!
Quick delivery
Delivery was quick and my order arrived well packaged. I was kept informed of my delivery date which arrived on time
8 October 2025
Reply from Nanogen
Hi Elaine, thank you for sharing your feedback. We are very pleased to hear that your order arrived nice and quickly. Enjoy your Nanogen products!
Excellent service
Great products and great experience as a customer within the expectations succeeded when seeing the results that are promised
8 October 2025
Reply from Nanogen
Hi Maria, what a lovely review. Thank you so much for your feedback. We love to exceed expectations and always want to deliver on our promises! It's great to hear that you are seeing such positive results after using Nanogen. Thanks for sharing your experience.
Great product
Great product easy to use and quickly absorbed into scalp
Making my hair feel thicker and shiny
8 October 2025
Reply from Nanogen
Hi Kay, thanks so much for your feedback. It's great to hear that you have enjoyed thicker hair and shinier hair after using our Hair Growth Factor treatment. It really is the most amazing serums that works at scalp level to create the best foundation for healthy hair growth (all without being greasy). It's great that you have experienced this for yourself. We hope you continue to enjoy using Nanogen.
Brilliant product
This is such an easy product to use, I've used a whole bottle & have just started my second, I feel like i have just started to see a difference a long the front of my hairline which has made me soooo happy ☺️ you apply it to your scalp,once a day, massage it in, it leaves no greasy residue to your hair so once you've applied it u can just get on with your day!
8 October 2025
Reply from Nanogen
Hi Susie, thank you for your review. We are so pleased to hear about your experience of using our scalp serum. Our Hair Growth Factor treatment really is the most amazing serum for supporting your scalp health and new hair growth. We are thrilled to hear about the results you have experienced and are so happy that you're happy! Thanks again for sharing your feedback.
Reply from Nanogen
Hi Karen, thank you so much for your review of our Hair Factor Growth Treatment. We love this scalp serum too - it does smell beautiful and absorbs so well. It really is the best solution to improve hair growth and hair thickness. Thanks again for your feedback.
It’s so easy to use and it’s wow it’s awesome a…
It’s so easy to use and it’s been a lifesaver for me , as going through the menopause I have noticed vast hair loss
8 October 2025
Reply from Nanogen
Hi Sharon, thank you for your review. It's very common notice hair thinning during menopause, so you are not alone in this. We have so many customers going through the same experience. We are very pleased to hear that Nanogen is helping you to navigate the changes. It really makes the work we do here feel very worthwhile. Thanks again for sharing your feedback.
Reply from Nanogen
Hi Trevor, thanks for your review. It's great to hear that you're a Nanogen fan and that you are pleased with the service we offer. Thanks for supporting our brand.
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