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A bottle of LONDONTOWN Nail Probiotic Instant Boost, featuring a black cap and light peach-colored liquid inside, designed as a transformative nail mask perfect for strengthening thin or weak nails.
A hand holding a bottle of Nail Probiotic Instant Boost by LONDONTOWN against a white background. The nails, which are often thin and weak, are painted with a matching nude color. This transformative nail mask works wonders for improving nail health and strength.
A bottle of LONDONTOWN&
Close-up of Nail Probiotic Instant Boost&
Top image shows a close-up of weak nails with dry cuticles labeled "Before." Bottom image shows the same nails with hydrated cuticles labeled "10 Mins After using LONDONTOWN Nail Probiotic Instant Boost.
Nail Probiotic Instant Boost
A bottle of LONDONTOWN Nail Probiotic Instant Boost, featuring a black cap and light peach-colored liquid inside, designed as a transformative nail mask perfect for strengthening thin or weak nails.
A hand holding a bottle of Nail Probiotic Instant Boost by LONDONTOWN against a white background. The nails, which are often thin and weak, are painted with a matching nude color. This transformative nail mask works wonders for improving nail health and strength.
A bottle of LONDONTOWN&
Close-up of Nail Probiotic Instant Boost&
Top image shows a close-up of weak nails with dry cuticles labeled "Before." Bottom image shows the same nails with hydrated cuticles labeled "10 Mins After using LONDONTOWN Nail Probiotic Instant Boost.
Nail Probiotic Instant Boost

Nail Probiotic Instant Boost

transformative nail mask for thin, weak nails

12 ml / .4 fl oz

4.7
Rated 4.7 out of 5 stars
233 Reviews
$22.00
/
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A transformative nail essence and mask that hydrates, revives, and protects. Formulated with a revolutionary probiotic complex and dual-exfoliating benefits, this multi-tasking kur treatment delivers instant gratification—even when you have less than a minute on your hands. Use it as a pre-manicure pick-me-up for healthier, stronger-looking nails and cuticles or as a leave- on mask for added hydration.

• Formulated without: Free of phthalates, parabens, silicones, and gluten.
• Vegan, gluten-free, cruelty-free

On bare nails
Apply Probiotic Instant Nail Boost to each nail and cuticle. Massage in to enable better absorption and to allow the water-gel to infuse. Do not rinse. Use 1 to 3 times per week.

Pre-manicure 
Apply Probiotic Instant Nail Boost to each nail and cuticle. Massage in and leave on for 1-3 minutes. Wash and dry nails thoroughly before applying polish. 

Use up up 3 times per week.

Water (Aqua), Glycerin, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Propylene Glycol, Trisodium Phosphate, Panthenol, Lactobacillus Ferment, Phenoxyethanol, Carbomer, Peg-40 Hydrogenated Castor Oil, Laureth-4, Benzophenone-4, Butylene Glycol, Fragrance (Parfum), Ethylhexylglycerin, Vaccinium Myrtillus(Bilberry) Fruit Extract, 1,2-Hexanediol, Saccharum Officinarum (Sugar Cane) Extract, Gluconolactone, Maltobionic Acid, Citrus Limon (Lemon) Fruit Extract, Citrus Aurantium Dulcis (Orange) Fruit Extract, Lactobacillus/Soybean Ferment Extract, Tocopherol, Acer Saccharum (Sugar Maple) Extract, CI 15510, CI 19140

$22.00
/

WHY

IT'S SPECIAL

Water-gel essence texture sinks in seamlessly for maximum
absorption and hydration.

•  Powerful kefir probiotic complex that protects the naturally
    occurring microbiomes of nails
•  Features dual-action exfoliators to resurface and brighten
    dull discolored nails
•  An antioxidant-rich oil blend deeply replenishes
•  Restores and strengthens natural microflora to defend
    against breakdown
•  With regular use nails appear healthier even when used
    as a quick pick-me-up

Nail Probiotic Instant Boost
INGREDIENTS

KEY

INGREDIENTS

•  Lactobacillus Ferment and Kefir Probiotic Complex
    Restorative, Ultra-protective
•  Gluconolactone and Maltobionic Acid - Exfoliating and Hydrating 
•. Sugar Cane, Lemon Fruit, and Orange Fruit Extracts - Brightening
•  Nutrient-rich Sweet Almond Oil - Conditioning
•  Vitamin B5 - Moisturizing 
•  Bilberry Extract - Antioxidant-rich 
•  Glycerin - Replenishing

4.7
Rated 4.7 out of 5 stars
Based on 233 reviews
Total 5 star reviews: 197 Total 4 star reviews: 20 Total 3 star reviews: 6 Total 2 star reviews: 5 Total 1 star reviews: 5
93%would recommend this product
Write a Review (Opens in a new window)
233 reviews
  • CW
    Cynthia W.
    Verified Buyer
    I recommend this product
    Age Range 65+
    Pros Exceeds Expectations
    Rated 5 out of 5 stars
    1 week ago
    This unique product is awesome

    I’ve been using this probiotic for past 2 +years and really love how it conditions my bare nails. I remove any polish on my nails and use this between salon manicures. It gives my nails a chance to breathe and recover from polish. Prior to applying the Probiotic Instant Boost, I apply the Fresh Glow Cuticle Remover followed by Nourishing Cuticle Oil. Taking time to gently use my fingers to work each product in. Then I apply the probiotic and after a few minutes I use my fingers to rub t it in. Photo below shows finished product. I have purchased the probiotic for a friend and she loves it. I am 70 years young and a long time fan of Londontown products and recommend each and every product.

    Was this helpful?
    L Profile picture for LONDONTOWN
    LONDONTOWN
    4 hours ago

    Thank you so much for sharing your wonderful experience with our Nail Probiotic Instant Boost, Cynthia! We're thrilled to hear how well it's been working for you over the past two years. It’s fantastic that you’ve found such a great routine using our products, and it’s great to know that your nails are breathing and recovering with the help of Nail Probiotic Instant Boost and the cuticle care products.

    We’re also so happy to hear you’ve introduced it to a friend who loves it too! Your continued support and trust in Londontown mean the world to us, and we appreciate your kind words. We hope your nails keep looking and feeling amazing for years to come! 💅😊

  • PM
    Pamela M.
    Verified Buyer
    I recommend this product
    Age Range 65+
    Pros Conditions
    Rated 4 out of 5 stars
    1 year ago
    So far I like it

    This product is very interesting in that it applies easily and you can massage it in. It dries quickly, which is wonderful. I'm waiting to see with time how effective it is for my nails

    Was this helpful?
  • LC
    Laura C.
    Verified Buyer
    I recommend this product
    Age Range 55 - 64
    Pros Smells Great, Gentle, Conditions, Performs as Described, Exceeds Expectations
    Rated 5 out of 5 stars
    1 year ago
    Much improved cuticles!

    This - in combination with switching to a mild bar soap for hand washing (no SLS) - has saved my cuticles! They were wretched in appearance before I began using this. Cannot recommend highly enough.

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  • LV
    Lisette van R.
    Verified Buyer
    I recommend this product
    Age Range 65+
    Pros Conditions, Would Purchase Again, Performs as Described, Gentle, Exceeds Expectations
    Rated 5 out of 5 stars
    1 year ago
    From bitten to beautiful

    I have bitten my nails for most of my life. As a child, young adult through to my senior years. I am 74 years old.

    I decided to break that habit and let my nails grow. It was difficult but I did it! However, my nails were not healthy. They broke, split, peeled and always had rough edges and weak spots. Then

    Londontown came into my life!

    After using Nail Probiotic Instant Boost for one month my nails began to improve. Then I decided nail care was my next step to beautiful nails. I purchased and started using Illuminating Nail Concealer, Perfecting Nail Veil #4 and Gel Genius Top Coat. WOW!! I now have beautiful, strong nails. I am thrilled!!

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  • DJ Profile picture for Debra J.
    Debra J.
    Verified Buyer
    I recommend this product
    Age Range 55 - 64
    Pros Conditions, Performs as Described, Would Purchase Again
    Rated 5 out of 5 stars
    1 year ago
    Amazing!

    Since using this product my nails are so healthy. As are my cuticles. I love it.

    Was this helpful?