Ultimate Routine - Slow-Growing Nails
- Regular price
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55 € - Regular price
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74 € - Sale price
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55 €
Ultimate Routine - Slow-Growing Nails
- Regular price
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55 € - Regular price
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74 € - Sale price
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55 €
Stress, fatigue, or external aggressions can slow down natural nail growth.
This intensive 2-week treatment was designed to stimulate, strengthen, and support the growth of slow-growing nails, with long-lasting results.
Includes:
- Nail Boost, a dietary supplement packed with vitamins and natural active ingredients that hardens nails and accelerates nail growth.
- The Strengthening Base Coat, a fortifying treatment base coat, perfect for strengthening nails.
- The Keratin Booster, a regenerating treatment enriched with keratin, designed to harden and lastingly strengthen soft, brittle nails.
- Green Oil, an ultra-nourishing care oil that soothes, protects, and supports nail regrowth.
- The Perfecting Concentrate, a nourishing and strengthening treatment that soothes and reinforces the nail contour.
Free delivery from €39
Pay in 3 interest-free instalments (orders over €80)
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Digital 2-Week Nail Rescue Guide

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0 € - Regular price
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0 €
Day-by-day product application guide -
Nail Boost

- Regular price
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29 € - Regular price
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- Sale price
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29 €
Hardens and repairs nailsSpeeds up growth -
Force Nail Hardener

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15 € - Regular price
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- Sale price
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15 €
For soft and brittle nailsStrengthens -
Perfecting Concentrate - Cosmos Organic

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16 € - Regular price
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- Sale price
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16 €
Nourishing and strengthening care pen for nails and cuticlesStrengthens
Description
Enriched with targeted active ingredients, these expert treatments deliver clinically proven efficacy:
Nail Boost, enriched with vitamins, minerals and naturally derived active ingredients:
- +25% accelerated nail growth*
- +79% smoothing effect on nails*
- +77% nail hydration*
- +77% nail hardness*
- 100% find their nails split less*
Strengthening Base, enriched with AHAs, PHAs and silicon:
- 100% find their nails stronger and protected**
- 97% notice their nails are regenerated**
- 97% find their nails harder**
Keratin Booster, concentrated with 10% active ingredients:
- 85% find their nails harder***
- 81% find their nails stronger***
- 81% notice their nails split less***
Green Oil, a blend of 6 botanical oils:
- 100% find their nails nourished****
- 100% find their nails hydrated****
Perfecting Concentrate, enriched with castor oil, vitamin E and pistachio extracts:
- 89% notice their nails are repaired*****
- 89% find their nails and contours strengthened*****
*Clinical test on 31 participants for 3 months, 2 capsules per day.
**External use test on 30 volunteers, application twice a week for 14 days.
***Clinical test under dermatological control on 25 people after 2 weeks of application.
****Test conducted on a panel of 20 people over 2 weeks.
*****Test under dermatological control conducted on a panel of 25 people for 21 days.
Ingredients / INCI
Nail Boost
MAGNESIUM CARBONATE; PLANT-BASED CAPSULE (HYDROXYPROPYL METHYL CELLULOSE); L-CYSTEINE; FERROUS GLUCONATE; NUTRITIONAL YEAST (SACCHAROMYCES CEREVISIAE); VITAMIN C; TURMERIC EXTRACT (CURCUMA LONGA); MALTODEXTRIN; ZINC CITRATE; BLUEBERRY POWDER (VACCINIUM MYRTILLUS); VITAMIN A; ANTI-CAKING AGENT: MAGNESIUM SALTS OF FATTY ACIDS; COPPER GLUCONATE; VITAMINS: B2, B6, B8, B9; SODIUM SELENITE
Strengthening Base Coat
ETHYL ACETATE, BUTYL ACETATE, NITROCELLULOSE, ADIPIC ACID/NEOPENTYL GLYCOL/TRIMELLITIC ANHYDRIDE COPOLYMER, ACETYL TRIBUTYL CITRATE, ALCOHOL, GLYCOLIC ACID, AQUA (WATER), ETOCRYLENE, GLUCONOLACTONE, ISOPROPYL ALCOHOL, DIMETHYL OXOBENZO DIOXASILANE, CI 60725 (VIOLET 2)
85% bio-sourced ingredients*
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% bio-sourced ingredients*
Green Oil
PRUNUS AMYGDALUS DULCIS (SWEET ALMOND) OIL, PASSIFLORA EDULIS SEED OIL, ADANSONIA DIGITATA SEED OIL, JUGLANS REGIA (WALNUT) SEED OIL, ALEURITES MOLUCCANUS SEED OIL, COCOS NUCIFERA (COCONUT) OIL, TOCOPHERYL ACETATE, TOCOPHEROL
99% bio-sourced ingredients*
Perfecting Concentrate
HELIANTHUS ANNUUS SEED OIL, CAPRYLIC/CAPRIC TRIGLYCERIDE, GLYCERIN, AQUA (WATER), OLEIC/LINOLEIC/LINOLENIC POLYGLYCERIDES, SUCROSE LAURATE, SUCROSE STEARATE, PARFUM (FRAGRANCE), PHENYLPROPANOL, TOCOPHEROL, RICINUS COMMUNIS SEED OIL, SUCROSE PALMITATE, PISTACIA LENTISCUS GUM, CITRONELLOL, PELARGONIUM GRAVEOLENS FLOWER OIL, GERANIOL, LINALOOL, CINNAMALDEHYDE
100% bio-sourced ingredients*
*Calculation based on international standard ISO 16128.
How do I use the routine?
Routine to apply on bare nails for 2 weeks:
Week 1 - Stimulate growth & strengthen:
1. Nail Boost - every day: take 2 capsules a day with a glass of water, preferably in the morning before eating.
2. Strengthening Base Coat - every 2 days: apply the treatment polish to clean nails and reapply every 2 days without removing.
3. Green Oil - twice a day: apply a drop to nails and nail contours, then massage to help absorption.
4. Perfecting Concentrate - anytime: apply anytime during the day to nails and cuticles to boost the treatment's effects. Its travel-friendly packaging means you can take it anywhere.
At the end of the treatment week, remove the layers of Strengthening Base Coat using Green Dissolving Oil or Gentle Polish Remover.
Week 2 - Stimulate growth & harden:
1. Nail Boost - every day: take 2 capsules a day with a glass of water, preferably in the morning before eating.
2. Keratin Booster - 3 times a day: apply to clean nails. Leave to dry until fully absorbed. Repeat 3 times a day.
3. Green Oil - twice a day: apply a drop to nails and nail contours, then massage to help absorption.
4. Perfecting Concentrate - anytime: apply anytime during the day to nails and cuticles to boost the treatment's effects. Its travel-friendly packaging means you can take it anywhere.
Repeat for one month if necessary.
For best results, ideally continue the Nail Boost treatment for 3 months.








FAQ
The most frequently asked questions from our users and community!
Which nail care is best suited to my nail type?
Every nail type is different! Feel free to take our online diagnostic to select the most suitable treatment;
We'll suggest a care routine that's just right for you!
Can I use this routine if I'm already wearing gel polish or gels?
This routine is designed to be used on bare nails. If you have products on your nails, we recommend removing them before applying the routine.
How do you use Nail Boost?
For an intensive course, take 2 capsules per day for 3 months. For maintenance, you can take 1 capsule per day for 2 months to boost nail vitality.
Can I renew the course regularly?
Yes. The course can be renewed as needed, particularly during periods of fatigue, stress or when nails seem to be growing more slowly. For maintenance, Nail Boost can be taken as a 2-month course, at 1 capsule per day.
Is this routine suitable for soft or fragile nails?
Yes. This routine is ideal if your nails grow slowly, but also if they lack strength or break easily. Nail Boost helps strengthen the nail plate over time, while the Green Oil nourishes and protects nails and cuticles.
Our customers talk about us!
Reviews are collected 28 days after purchase and are from verified buyers only.
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Free delivery Free delivery to a pick-up point from €39 and to your door from €49. Valid in Metropolitan France.
Free delivery
Free delivery to a pick-up point from €39 and to your door from €49. Valid in Metropolitan France.
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3 interest-free instalments
Or pay by credit card, Paypal, Amazon Pay, Apple Pay, Bancontact, iDEAL, SOFORT, Giropay.
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Loyalty programme By becoming a Green Addict member, earn points and enjoy many exclusive perks!
Loyalty programme
By becoming a Green Addict member, earn points and enjoy many exclusive perks!
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Click & Collect Your order ready within 2 working hours in Paris, Tuesday to Saturday, 12pm–7pm.
Click & Collect
Your order ready within 2 working hours in Paris, Tuesday to Saturday, 12pm–7pm.
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