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Duo Day & Night

Regular price
25 €
Regular price
30 €
Sale price
25 €
200 reviews

200 total number of reviews

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The day & night routine for soft, damaged nails, an express treatment to strengthen and regenerate. This routine includes:

  • The Keratin Booster, a 10% concentrated treatment to instantly repair fragile nails
  • The S.O.S. Mask, an overnight care treatment to intensely hydrate nails

What is your nail type? Take our diagnostic test by clicking here to find out!

  • Coverage:Nail types:Damaged and Soft

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Description

The day & night routine
7 days to visibly repair soft and damaged nails, thanks to the combined action of two expert treatments

Day treatment - The Keratin Booster:
The miracle hardening treatment that instantly strengthens and regenerates soft and damaged nails.

Concentrated 10% treatment 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 strengthen the nail
  • Vitamin C: protects the nail from external aggressors

Proven visible results:

  • 85% find their nails harder*
  • 81% find their nails stronger*
  • 81% find their nails less split*

Its fluid texture is immediately absorbed, with no greasy or sticky finish.

*Clinical test under dermatological control on 25 people after 2 weeks of application.

Night treatment - The S.O.S. Mask:
The night mask intensely hydrates very damaged nails. Its unique formula, highly concentrated in emollient and strengthening agents, forms a protective film on the nail surface to stimulate 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 treatment to repair soft, damaged nails:

  • Day care : On bare nails, apply the Keratin Booster 1 to 3 times a day using the brush. Let 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 air dry. The next morning, peel off or remove with soapy water.
Ingredients / INCI

Keratin Booster:
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% ingredients of natural origin*

S.O.S. Mask:
AQUA (WATER), ALCOHOL DENAT., POLYVINYL ALCOHOL, PANTHENOL, PARFUM (FRAGRANCE), ALCOHOL, TRIS(TETRAMETHYLHYDROXYPIPERIDINOL) CITRATE, CI 14700 (RED 4)

80.5% ingredients of natural origin*

*Calculation based on the international ISO 16128 standard.

Pro tip ✨

To complete the routine, nourish cuticles daily with the Perfecting Concentrate.

Duo Day & Night
Duo Day & Night
Duo Day & Night
Duo Day & Night
Duo Day & Night
Duo Day & Night
Duo Day & Night
Duo Day & Night
Duo Day & Night

The day & night routine for soft and damaged nails



  • Strengthens and regenerates
    nails

  • Repairs nails
    fragile

  • Deeply hydrates
    nails

How to use the Day & Night Routine?
Ideal for soft and damaged nails

  • Apply Keratin Booster 3 times a day

  • Apply the S.O.S. Mask in the evening every 3 days

  • The next morning, peel off the mask

FAQ

The most frequently asked questions from our users and community!

How long should I let the product dry?

The fluid texture is immediately absorbed by the nail. Simply let it dry naturally for a few seconds, no rinsing required.

Can you do a Keratin Booster treatment several times a year?

Yes, you can repeat the treatment several times a year. We recommend taking a break between each treatment and monitoring how your nails progress.

Can Keratin Booster be used with a treatment base coat?

Keratin Booster is used on its own, on bare nails. If you want to follow with a treatment base coat, apply it only after the treatment course and after cleansing the nail.

Can I use the Kératine Booster under a Green™ or Green Flash™ polish?

Yes, but it is essential to degrease the nail surface after the treatment has been absorbed to ensure good polish hold.

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