MANUCURIST
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A miracle hardening treatment that instantly strengthens and helps regenerate soft or damaged-looking nails.
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Keratin Booster is an intensive hardening treatment designed to strengthen and help regenerate soft, weakened or damaged-looking nails. Highly concentrated in plant-based keratin, silicon and biotin, this biomimetic formula helps reinforce and densify the nail plate while improving overall nail resilience.Its lightweight fluid texture is instantly absorbed, allowing targeted action within the nail without leaving a greasy or sticky finish. Formulated with 97.5% ingredients of natural origin, it helps support stronger, harder and healthier-looking nails over time.Ideal for nails in need of reinforcement, Keratin Booster helps restore strength, improve resistance and reduce the appearance of fragile, weakened nails.
Keratin Booster is an intensive hardening treatment designed to strengthen and help regenerate soft, weakened or damaged-looking nails. Highly concentrated in plant-based keratin, silicon and biotin, this biomimetic formula helps reinforce and densify the nail plate while improving overall nail resilience.Its lightweight fluid texture is instantly absorbed, allowing targeted action within the nail without leaving a greasy or sticky finish. Formulated with 97.5% ingredients of natural origin, it helps support stronger, harder and healthier-looking nails over time.Ideal for nails in need of reinforcement, Keratin Booster helps restore strength, improve resistance and reduce the appearance of fragile, weakened nails.
Suitable for soft, weak, thin or damaged nails in need of strengthening and hardening.
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 - Repeat daily, for 5 to 7 days If you wish to apply polish after this care, degrease the nail surface for optimum hold.
Standard delivery 3-5 business days.
MANUCURIST
Keratine Booster
15 ml
KEY INGREDIENTS
Key Ingredients
What makes this formula feel different
FULL INGREDIENTS LIST
Alcohol Denat., Aqua (Water), Glycolic Acid, Polyacrylate Crosspolymer-6, Fragrance, Phaeodactylum Tricornutum Extract, Gluconolactone, Dimethyl Sulfone, Prunus Armeniaca (Apricot) 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, Tetramethyl Acetyloctahydronaphthalenes. 96.5% ingredients of natural origin* *Calculation based on the international standard ISO 16128.
Helps nourish fragile nails and reinforce the nail structure.
Helps strengthen and fortify the nails.
Helps improve nail strength and resilience.
Gently exfoliate the nail plate to support renewal and improve the appearance of the nails.
Helps protect the nails from external aggressors.
Manucurist is a Paris-born nail colour and care brand rethinking the modern manicure through cleaner formulas, professional expertise and a distinctly French sense of colour.
Its story began in 1996, when Gaëlle Lebrat Personnaz’s mother opened the first Manucurist nail salon in Paris. After a career in luxury fashion, Gaëlle took over the family business and set out to create high-performing alternatives to traditional nail products — easier to use, kinder to nails and more considered in their formulation.
WITH LOVE FROM
PARIS, FRANCE
Nail color the new way.
ABOUT THE BRAND

Manucurist is a Paris-born nail colour and care brand rethinking the modern manicure through cleaner formulas, professional expertise and a distinctly French sense of colour.
Its story began in 1996, when Gaëlle Lebrat Personnaz’s mother opened the first Manucurist nail salon in Paris. After a career in luxury fashion, Gaëlle took over the family business and set out to create high-performing alternatives to traditional nail products — easier to use, kinder to nails and more considered in their formulation.
Manucurist approaches nail colour as both beauty and care. Drawing on professional salon expertise, the brand develops routines inspired by skincare — designed not only to colour the nails, but also to strengthen, hydrate and protect them. Innovation is guided by a simple goal: to make manicure rituals more effective, desirable and accessible without compromising nail health
Manucurist formulates with a high proportion of bio-sourced ingredients derived from renewable plant materials such as corn, wheat, cotton, cassava, sugar cane and potatoes. The brand excludes a defined list of controversial substances, particularly those derived from petrochemicals, and all ranges are certified vegan by The Vegan Society. Products are cruelty-free, and the brand continues to replace conventional ingredients with plant-based alternatives wherever possible.
Manucurist’s nail care products and polishes are made in France, with an emphasis on short supply chains and local suppliers. The brand also works with an ESAT supported-employment organisation for packaging and assembly, extending its environmental and social commitments beyond formulation to the wider production process.
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FREQUENTLY ASKED QUESTIONS
Manucurist uses a high proportion of ingredients derived from renewable plant-based materials such as corn, wheat, cotton, cassava, sugar cane and potatoes, replacing conventional petrochemical ingredients wherever possible.
Yes. All Manucurist ranges are certified vegan by The Vegan Society, confirming that no animal-derived products or ingredients are used in their formulation, production or manufacture.
Yes. Manucurist states that neither its finished products nor the ingredients used in its formulas are tested on animals.
Manucurist nail care products and polishes are made in France, with an emphasis on short supply chains and local suppliers.
Manucurist combines professional nail expertise with formulas designed around both colour and care. Its routines are inspired by skincare and focus on performance, ease of use and supporting the health of the nails.
If you're still looking for answers, our detailed FAQ might be helpful
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