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RenuNail Nail Strengthener 30ml

Our award winning product, RenuNail Nail Strengthener is our hero product for weak, brittle, slow growing nails prone to chipping and breaking. This intensive nail strengthening treatment is the first step in a 3 step regime to longer, stronger nails.

One sold every 15minutes in the UK.

Please Note: This product cannot ship internationally due to postal restrictions.
Long, strong, healthy looking nails in four weeks

On the first day of the treatment apply two coats of RenuNail Nail Strengthener to clean nails, avoiding the cuticle area. Apply one further coat every day for the next five days. On the seventh day remove with nail polish remover and repeat the programme for the next three weeks.

At the end of the 4 weeks, stop using the RenuNail Nail Strengthener, and move onto RenuNail Sensitive. Too much protein build up will have a negative effect on your nails so it is important to rest for two weeks after the four week programme. At the end of the two weeks you can return to the original Nail Strengthener.

For best results massage RenuNail Nourishing Oil into the cuticles once the Nail Strengthener has dried each time you apply a new coat. Nourishing Oil is also recommended to be used as an ongoing daily treatment to ensure cuticles remain soft and hydrated.

Do’s and Don’ts:
Do repeat the course when appropriate but leave a minimum of two weeks in between treatments
Do wear nail polish if desired - this will affect the potency and may take longer for maximum results, but colour can still be used.
Do follow the same treatment on toenails if required, however the desired results may take longer than the four weeks to achieve.
Do use RenuNail Nourishing Oil around the cuticles and over the nail beds every day during the treatment for optimum results
Don't apply to nails which have recently had artificial products applied and removed (e.g. gel or acrylic products). Instead use RenuNail Sensitive for the first two weeks and then begin the four week nail strengthening treatment.

Don’t over use the nail strengthener. Over use can have the opposite effect on nail strength. Use a maximum of four times per year.
Calcium strengthens weak brittle nails
Camphor soothes sensitive nails
Order by phone 01666 818 433
RenuNail Nail Strengthener 30ml
  • RenuNail Nail Strengthener 30ml

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Overall Rating
9 Review(s)|5 out of 5 |Add your Review

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User: Beth
Age: 46
5 out of 5

Unbelievably good.

February 19, 2014

Well, I had my doubts after years of having acrylic nails on to hide my paper thin, useless nails. I finally took them off last autumn and took the plunge to try and grow my own. Nothing has ever improved them yet this product has proved miraculous. My nails are now beautiful. They are strong, healthy and look great. I am so proud of them. Thank you.

Age: 61
5 out of 5


April 16, 2013

Over the years I have tried so many nail strengtheners and none of them have made lasting improvements to my nails until I tried this. within 3 mmonths I have the best nails ever. Strong and long I even have to file them down. This is definitely the oscar winner of nail treatments. I will continue to use it forever and a day. I have now bought the base and top coat, the oil and the sensitive strengthener.

I cannot recomment it highly enough, fantastic, fantastic and again fantastic.

User: Sylvia
Age: 63
5 out of 5

Utterly Brilliant

March 18, 2013

The most amazing product I have ever had the pleasure of using. I want to shout from the rooftops, to tell the world how excellent this nail strengthener is. In March 2004 I made the mistake of having acrylic nail tips put on, which I kept for just over a year. My nails never recovered, until I tried Dr LeWinns Renunail. I now have long, strong nails - thank you so very, very much.

User: Gillian Dulieu
Age: -
5 out of 5

Beyond My Expectations

December 12, 2012

Renunail Strengthener worked beyond my expectations

I have always wanted to have long beautiful nails, and over the years I must have tried most of the nail care products on the market, but none of them have worked long term. I wouldn't want to add up how much I have spent.

The only way I could have long nails was to have false ones professionally applied for special occasions, but that damaged my own nails and really made them weak.
I came across Dr. Lewinn's Renunail Strengthener and decided to try it as my nail nails were in really poor condition and any improvement would have been good. I applied exactly it as instructed, also using the Nourishing Oil as part of the routine.
After one month my nails were amazing, It really and truly had worked beyond my expectations, I now I have the nails I have always dreamed of. They are long, strong and healthy looking. I am so pleased with the result.

I would recommend Dr. Lewinn's Reunail to anybody because it worked.

User: Rachel
Age: 40
5 out of 5


November 28, 2012

I had a damaged nail (having trapped it) and used this even when i didn't use it on my other nails and it saved me from losing my nail all together and the new nail has grown back stronger than if I'd not used it.

User: Erica
Age: 77
5 out of 5


October 12, 2012

I have nearly finished my first bottle and ordered more after using consistently for about 4 months. Before my nails split, broke, flaked and I was very fed up. In all that time my nails have been long and look gorgeous, I have been complimented and recommended it friends. It is worth buying the oil as well.

User: Boo
Age: 37
5 out of 5

Loved this

July 14, 2012

Really works - shall be using this from here on in :) my nails are now amazing I shall be telling all my friends :)

User: Katy
Age: 32
5 out of 5


June 20, 2012

I can't believe how well this works! It gives better results than any other nail strengthener that I've ever tried and keeps my nails super strong. I would definitely would recommend this to anyone who is tired of broken nails and wants to grow them longer!

User: Missy
Age: 30
5 out of 5


June 06, 2012

My nails always used to split and peel before I used Renuail's Nail Strengthener. Within a week the spitting had stopped and now after a month my nails are really healthy, long and super strong - even a counter assistant in Debenhams commented on them!