
Duo Day & Night
- Regular price
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25 € - Regular price
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30 € - Sale price
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25 €
Duo Day & Night
- Regular price
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25 € - Regular price
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30 € - Sale price
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25 €
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The day & night routine for soft and damaged-looking nails, an express care to strengthen and regenerate. This routine includes:
- The Keratin Booster, a 10% concentrated care to instantly help repair fragile nails
- The S.O.S. Mask, an overnight care to intensely hydrate nails
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Nail Strengthening Serum
- Regular price
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15 € - Regular price
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- Sale price
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15 €
Strengthens and regenerates soft, damaged nailsNew ✨ Strengthens -
S.O.S. Nail Mask
- Regular price
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15 € - Regular price
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- Sale price
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15 €
Regenerating and moisturising night maskRégénère
Description
The day & night routine
7 days to visibly repair soft and damaged-looking nails, with the combined action of two expert care
Day care - The Keratin booster:
The miracle hardening care that instantly strengthens and regenerates soft and damaged-looking nails.
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*
Its fluid texture is instantly absorbed, leaving the nail with no greasy or sticky finish.
*Clinical test conducted under dermatological supervision on 25 individuals after two weeks of use.
Night care - The S.O.S. Mask:
The overnight mask intensely hydrates very damaged-looking nails. Its unique formula, highly concentrated in emollient and fortifying agents, forms a protective film on the nail surface to boost cell repair.
Proven visible results:
- 80% find their nails more hydrated**
- 75% find their nails harder**
- 75% find their nails stronger**
**Test conducted on a panel of 20 people over 14 days.
How to use the Day & Night Routine?
Your 7-day care, to repair soft and damaged-looking nails:
- Day care: On bare nails, apply the Keratin Booster 1 to 3 times a day using the brush. Let it dry until fully absorbed.
- Night care: On bare nails, apply the S.O.S. Mask 2 to 3 nights a week in a thick layer. Let it dry. The next morning, remove it by peeling it off or washing with soapy water.
Ingredients / INCI
Keratin Booster :
ALCOHOL DENAT., AQUA (WATER), GLYCOLIC ACID, POLYACRYLATE CROSSPOLYMER 6, PARFUM (FRAGRANCE), PHAEODACTYLUM TRICORNUTUM EXTRACT, GLUCONOLACTONE, DIMETHYL SULFONE, PRUNUS ARMENIACA KERNEL OIL, PENTYLENE GLYCOL, ISOPROPYL ALCOHOL, ACETYL CYSTEINE, LENS ESCULENTA (LENTIL) SEED EXTRACT, HYDROLYZED CICER SEED EXTRACT, CHENOPODIUM QUINOA SEED EXTRACT, MAGNESIUM ASCORBYL PHOSPHATE, BIOTIN
97,5% Natural Ingredients*
S.O.S. Mask:
AQUA (WATER), ALCOHOL DENAT., POLYVINYL ALCOHOL, PANTHENOL, PARFUM (FRAGRANCE), ALCOHOL, TRIS(TETRAMETHYLHYDROXYPIPERIDINOL) CITRATE, CI 14700 (RED 4)
80,5% Natural Ingredients*
*Calculation based on the international ISO 16128 standards.
💅 Pro tip
To complete the routine, nourish the cuticles daily with the Nourishing nail pen.










Day & night routine for soft, damaged-looking nails
Strengthens and
regeneratesRepairs fragile
nailsIntensely hydrates
the nail plate
How to use the day & night routine?
Ideal for soft, damaged-looking nails
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Apply the Keratin booster 3 times a day
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Apply the SOS Mask in the evening, every 3 days
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Peel off the mask the next morning
FAQ
Our Frequently Asked Questions from our customers and community!
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 clients talk about us!
Our reviews are collected 2 weeks after any purchase and are the reviews of verified buyers only.
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Free delivery Free delivery in relay point from 39€ and at home from 49€ of purchase. Valid in Metropolitan France.
Free delivery
Free delivery in relay point from 39€ and at home from 49€ of purchase. Valid in Metropolitan France.
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Payment 3x free of charge
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A question ? Please reach out to us by filling out this form.
A question ?
Please reach out to us by filling out this form.
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Click & Collect Your order is ready within 2 working hours in Paris from Tuesday to Saturday, from 12 p.m. to 7 p.m.
Click & Collect
Your order is ready within 2 working hours in Paris from Tuesday to Saturday, from 12 p.m. to 7 p.m.

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