Product Reviews for Scientifique K+ 2ml - PRO KERATIN (99561)

Mavala Nail Hardener

Very Good product - in fact it's the 2nd one that I buy since May 2025. My nails were splitting and scaly and since I've been using this product my nails are harder and stronger. I would definitely recommend it.

March 22, 2026
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Verified
Mavala Nail Hardener

I bought this product back in May and have to say I'm really pleased with the results in only a few weeks. I'd had very brittle and chipped nails until I found this great product

July 15, 2025
Great product

May be expensive but it works

June 26, 2023
Brilliant product

I have naturally weak, peeling nails, prone to splitting & breaking on a regular basis. This product has completely transformed them. I have been using it for 7 weeks & my nails are growing longer, stronger & are looking so healthy without any breakages. So impressed I have repurchased for my daughter who has naturally weak nails too!

August 27, 2022
Nail Hardener

After removing my acrylic and gel nails, I have been suffering from breakages constantly and have been using this product for 3 weeks now, and while I haven’t been using it every few days as recommended I have noticed some improvement. I have only had one breakage but I am ecstatic with the results so far since even using it less than recommended I’m seeing results.

May 26, 2022
Brilliant

Great product. My nail technician is thrilled with the impact it has had on my nauls

December 5, 2020
Mavala Scientifique K+

Great product. Nails absorb it very quickly. Very easy to apply. Results good so far!

August 12, 2020
Pleasantly surprised!

I've been getting acrylics, SNS, and shellac done for years, and before that I was a nail biter, so as you can guess my nails were in terrible condition. Due to lockdown, I had to take off my SNS at home, which left my nails severely damaged and paper thin. I decided it was time to try and grow them naturally. Looking around at reviews online, I decided to give this a go, alongside using CND Solar Oil. It's been 2 weeks, and for the first time in my life, my nails have been able to grow past the tips of my fingers without peeling off!

May 4, 2020
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Verified
Love it

Love this product. Dropped my previous full bottle so had to replace it straight away. Sinks into nails quickly.

August 22, 2019
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Verified
Good

Easy to use and sinks in quickly before applying polish.

August 20, 2019
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Verified
Jo

Was smaller than I expected but my nails are a lot stronger been using 2 weeks no breakage.

November 6, 2018
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Verified