Nail treatment serum
Nail Strengthening Serum

Regular price: £15
Regular price
Sale price: £15

Strengthens

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The miracle nail care that instantly strengthens and helps regenerate soft or damaged-looking nails.

Highly concentrated in plant-based keratin, silicon and biotin, this biomimetic formula helps naturally densify the nail plate.

Its fluid texture is instantly absorbed by the nail for deep, targeted action.

What type of nails do you have? Complete our analysis by clicking here and find out!

Applicator: Brush

Nail type: Damaged, Soft, Yellowed, and Sensitive

Benefits: Strengthens and regenerates nails

Usage: As a 2-week treatment

Choose my option

Nail Strengthening Serum £15 Most popular ✨Nail Strengthening Serum + Nail Mask S.O.S. ~~£30~~ £25 Best value ✨Nail Strengthening Serum + Nail Mask S.O.S. + Nourishing Nail Pen ~~£47~~ £38

Free delivery on +£39 orders

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Description

10% concentrated care formula

Plant-based Keratin: intensely nourishes fragile nails
AHA & Gluconolactone: gently exfoliate the nail plate
Silicon: helps strengthen the nail
Biotin (Vitamin B8): helps harden and fortify the nail
Vitamin C: protects the nail from external aggressions

Proven visible results

85% find their nails harder*
81% find their nails stronger*
81% find their nails were less likely to split*

Easy and fast application
The alcohol-based fluid texture is instantly absorbed, leaving the nail with no greasy or sticky finish.

Composed of 96,5% natural origin ingredients.**

*Clinical test conducted under dermatological supervision on 25 individuals after two weeks of use.
**Calculation based on the international ISO 16128 standards.

How to use the Nail Strengthening Serum?

Your intensive repair care for soft or damaged-looking nails:

Apply 1 to 3 times a day on bare nails using the brush.
Let it dry completely until full absorption. No need to rinse or massage: the active ingredients are absorbed naturally by the nail.
Repeat daily, for 5 to 7 days.

If you wish to apply polish after this care, degrease the nail surface for optimum hold.

(Suitable from age 12)

Pro tip ✨

For very soft or damaged-looking nails, use as an intensive care: apply 3 times a day, for 7 days.

Ingredients / INCI

Super ingredients

INCI list

ALCOHOL DENAT., AQUA (WATER), PRUNUS ARMENIACA (APRICOT) KERNEL OIL, DIMETHYL SULFONE, PARFUM (FRAGRANCE), GLYCOLIC ACID, POLYACRYLATE CROSSPOLYMER-6, PHAEODACTYLUM TRICORNUTUM EXTRACT, HYDROLYZED CICER SEED EXTRACT, CHENOPODIUM QUINOA SEED EXTRACT, LENS ESCULENTA (LENTIL) SEED EXTRACT, PENTYLENE GLYCOL, GLUCONOLACTONE, ISOPROPYL ALCOHOL, ACETYL CYSTEINE, MAGNESIUM ASCORBYL PHOSPHATE, BIOTIN

96,5% natural origin ingredients*

*Calculation based on the international ISO 16128 standards.

Miracle treatment that
hardens and regenerates

Boosts keratin
production

Redensifies
the nail plate

Fluid texture that’s
instantly absorbed

How to use Keratin Booster?
Perfect for soft, damaged-looking nails

Apply 3 times a day on bare nails
Allow to dry fully for complete absorption
Repeat the routine for 1 week

How long should I let the product dry?

The fluid texture is instantly absorbed by the nail. Simply let it air-dry for a few seconds, no rinsing needed.

Can I use the Keratin Booster several times a year?

Yes, you can repeat the care several times a year. It’s recommended to take a break between each care and monitor your nail’s condition over time.

Can I use the Keratin Booster with a base coat?

The Keratin Booster should be applied on bare nails only. If you wish to use a base coat, apply it after the care, once the nail has been cleansed.

Can I apply the Keratin Booster under Green™ or Green Flash™ polish?

Yes, but it’s essential to cleanse the nail surface after the product has been absorbed to ensure optimal polish adhesion.

Our customers talk about us!

Our reviews are collected 28 days after any purchase and these are the reviews of verified buyers only

Overall rating: 4.6918917 / 5 from 555 reviews.

AI Generated Review Summary

Customers reported that their nails are stronger and healthier after using this nail strengthening serum. The product is highly effective in reinforcing nails, with a positive impact on nail health.

Summary topics

Nail Health (22%): In general, customers reported that their nails are stronger and healthier after using this nail strengthening serum.
Product Effectiveness (6%): It was reported by customers that the product is excellent and effective in reinforcing the ongles.

Review topics: [smell, feel, boost, problem, look, improvement, absorbs, nails, texture, appearance, glow, result, bottle, consistency, sensation, treatment, strength, fragrance, effect, care, difference, serum, works, grow, polish, use, application, strengthens, dries, become].

Review highlights

"My nails are already stronger and more flexible and it really softens and soothes rough cuticles." — Cathy R.
"This strengthening serum is really helping my nails get stronger and healthier." — Tasha O.
"The good: my nails feel significantly stronger!" — Heidi

Reviews

Me encanta el keratine booster,

"Me encanta el keratine booster, te recupera en 2 semanas las uñas después de una rutina de manicura semi permanente. Tengo 55 años, siempre me he hecho la semi permanente (30 Años sin descanso)y ahora me estoy cuidando mucho mis uñas y mis manos con esta firma. La encuentro estupenda en todos los productos que pruebo y cumplen perfectamente su cometido . Y ahora me ha dado por los colores que me duran una semana con la base SOS y el top coat. El quitaesmalte es una pasada también. Lo más importante es la recuperación de mis uñas y lo tengo conseguido ! Venden calidad !!!!"

— Maria C. (5/5)

Zero stars, I have not

"Zero stars, I have not received my serum so cant leave a review. First bottle arrived smashed, second and third replacements never received. Its becoming a joke now."

— Heather C. (5/5)

Le soin est très apprécié

"Le soin est très apprécié pour durcir et réparer les ongles mous ou abîmés en quelques jours. La texture non collante."

— Tatiana Y. (5/5)

Schon nach ein paar Tagen

"Schon nach ein paar Tagen sind die Nägel glatter, fester und schuppen nicht. Einfache Anwendung, trocknet schnell und ist sehr ergiebig. Super Lösung für meine weiche, rissige Nägel."

— Jitka C. (5/5)

It’s easy to apply and

"It’s easy to apply and absorbs quickly. It strengthens the nails, but I can’t say that the results achieved over two weeks last very long."

— Ekaterina S. (4/5)

Je l’ai utilisé pendant un

"Je l’ai utilisé pendant un mois tous les soirs, j’avais les ongles tellement abîmé que je n’arrive pas à savoir si le kératine booster a fait son effet."

— sa.lys@hotmail.fr ‎. (4/5)

Excellent product and it helped

"Excellent product and it helped my nails tremendously. The scent is lovely too."

— Wendy M. (5/5)

Me ha gustado mucho,tenía las

"Me ha gustado mucho,tenía las uñas muy mal después de la semipermanente y las he recuperado. Gracias"

— Toñi E. (5/5)

Excelente producto

"Me encanta. . . Es, simplemente, maravilloso, alimento para las uñas. Hoy en día es para mí, junto con el resto de mi kit de reparación, fundamental para tener unas uñas fuertes y reparadas. Las uñas se ven lisas y blanquitas. Lo uso varias veces a diario cuando mis uñas estarán sin esmalte. Es mi tercer bote y, desde luego, no el último. Totalmente recomendable."

— Nía (5/5)