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Rest & Repair Wonder Mask

Rated 4.8 out of 5
41 Reviews
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Hydrating nail and cuticle mask - 14ml / 0.5 fl.oz

Fact: our nails grow while we’re asleep. So, while you’re in the land of nod why not take the time to protect and nourish them with this dreamy concoction of antioxidant-packed organic white tea, fermented rice, kefir, sake, lily, sweet almond and vitamin E oils. Bedtime is the perfect time to repair, regenerate and hydrate. Yawn.

Containing 76% of naturally sourced ingredients, we meticulously tested this formula during a two-week trial where 80% of users reported regenerated nails and 95% experienced nourished nails and cuticles.

Smells good enough to eat, but please don't.

All Kester Black products are cruelty-free, vegan and carbon neutral. We’re also a Certified B Corp!

Made in France.

  • Massage the mask into your nails and cuticles. Leave overnight, to repair while you rest. Rinse off with warm water when you wake up, and use with our Miracle Treatment Base Coat for continual repair - even while wearing your favourite polish.
  • Water (Aqua), Glycerin, Prunus Amygdalus Dulcis (Sweet Almond) Oil (Prunus Amygdalus Dulcis Oil), Propylene Glycol, Trisodium Phosphate, Panthenol, Carbomer, Butylene Glycol, Camellia Sinensis Leaf Extract, Citric Acid, Ethylhexylglycerin, 1,2-hexanediol, Lactobacillus Ferment, Lactobacillus/Rice Ferment Filtrate, Lactobacillus/Soybean Ferment Extract, Laureth-4, Ophiopogon Japonicus Root Extract, Oryza Sativa (Rice) Lees Extract, Potassium Sorbate, Peg-40 Hydrogenated Castor Oil, Fragrance (Parfum), Phenoxyethanol, Leuconostoc/Radish Root Ferment Filtrate, Lactobacillus/Ganoderma Lucidum (Reishi Mushroom) Extract/Lentinus Edodes (Shitake Mushroom) Extract Ferment Filtrate (Lactobacillus/Ganoderma Lucidum Extract/Lentinus Edodes Extract Ferment Filtrate), Sodium Benzoate, Tocopherol, Tocopheryl Acetate, Yellow 5 (Ci 19140).
average rating 4.8 out of 5
Based on 41 reviews
  • 5 Stars
    36 Reviews
  • 4 Stars
    3 Reviews
  • 3 Stars
    2 Reviews
  • 2 Stars
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    0 Reviews
98% of reviewers would recommend this product to a friend
Application
Rated 4 out of 5
Staying Power
Rated 4 out of 5
Customer photos and videos
41 Reviews
Reviewed by Tessa M., from Australia
Verified Buyer
I recommend this product
Age Range
25 - 34
Product Standouts
  • Ease of Application
  • Product Design
  • Quality
Rated 5 out of 5
Review posted

Wonder mask

I love this product, within two weeks on inconsistent use i can feel and see my nails getting stronger. I also really like the doe foot applicator

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Application
Rated 5 out of 5
Staying Power
Rated 5 out of 5
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Reviewed by Alison M., from New Zealand
Verified Buyer
I recommend this product
Age Range
55 - 64
Product Standouts
  • Quality
Rated 5 out of 5
Review posted

I’m impressed

So far l have only used the rest and repair. My nails weren’t in very good condition. I’ve been using this for a week now and I have 3 nails left to bring back to good. In particular Ive had a split on my thumb nail for years and in the week lve been using it .. l can still see it because if different colour but the nail is in much better condition and the split is way smaller . I think another week and hopefully my nail will have grown out with no split. My other nails were flaking and they are so much better already. I’m looking forward to trying out the polish once the thumb nail is grown out. I have some colours and a top coat but I want a base coat before I try the polishes. So far though my nails are the best they’ve been for a long time.

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Application
Rated 5 out of 5
Staying Power
Rated 5 out of 5
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Reviewed by Rachel P., from Australia
Verified Buyer
I recommend this product
Age Range
25 - 34
Product Standouts
  • Ease of Application
  • Quality
  • Product Design
Rated 5 out of 5
Review posted

The BEST, most ethical nail treatment!

Firstly, I love Kester Black's ethos; vegan, cruelty-free and Australian. But of course that is not enough - it's fortunate that this is a "miracle" product (if you believe in that kind of thing), otherwise it's a well researched nail treatment - highly recommended, especially when used with the "Self Love Oil".

It really works; my nails grow healthier and stronger; without breaking anymore, it smells great (or less aggressive/potent than others) AND the bottles are aesthetically pleasing on my table too! Ticking boxes that arguably didn't need to be.

P.S. I like the applicator - smoother and less mess than a brush.

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Application
Rated 5 out of 5
Staying Power
Rated 4 out of 5
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Reviewed by Evangeline L., from Australia
Verified Buyer
I recommend this product
Age Range
18 - 24
Product Standouts
  • Quality
Rated 5 out of 5
Review posted

Weird but works

This product is like a hair mask, you think your conditioner is great but then you mask and your hair is mermaid like? This is that for your nails. It’s not oily like your average nail hydrators, it absorbs quickly, and leaves your bare nails feeling soft? The weirdest part is the smell, it doesn’t have one which is great! I put it on in bed and my partner now steals it it’s so good!

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Application
Rated 4 out of 5
Staying Power
Rated 5 out of 5
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Reviewed by Gina S., from Australia
Verified Buyer
I recommend this product
Age Range
65+
Rated 5 out of 5
Review posted

It really works

I have to say I was skeptical that this would really work...

This product is incredible, the improvement in my nails within 2 weeks was amazing. From nails that were ridged and splitting to most of them smooth and strong

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Application
Rated 5 out of 5
Staying Power
Rated 5 out of 5
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