STRONG NAILS

Name: STRONG NAILS
Brand: Biocyte Cheveux
SKU: BYONGG40
Price: 22.50 EUR
Availability: InStock
Rating: 4.7 (22 reviews)

22,50€

Strong & enhanced nails

22,50€

Strengthens and enhances the beauty of your nails with an innovative synergy of keratin, zinc, bamboo silica, and biotin.

High keratin dosage, a major component of nails, recognized for strengthening their durability and resistance

Formulated with a complex of essential minerals and vitamins for reinforced and fortified nails

A solution that acts from within to naturally activate nail growth mechanisms

Pack of 40 capsules — 20 jours

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Where to find this product?

STRONG NAILS

22,50€

French laboratory

High-quality assets

Innovative formulas

Partner of pharmacies

French laboratory

High-quality assets

Innovative formula

Pharmacy Partner

French laboratory

High-quality assets

Innovative formula

Pharmacy Partner

This nutricosmetic supplement has been specifically formulated to optimize the strength and beauty of nails, which are often weakened by external aggressions and nutritional deficiencies. Its formula combines a high-dose keratin hydrolysate, a major biomolecule in nail structure, with a complex of essential minerals and vitamins.

Zinc, recognized for its role in maintaining normal nails, works in synergy with silica derived from bamboo extract and lithothamnium powder, two mineral sources that contribute to fortifying the nail matrix. Biotin (vitamin B8) and vitamin D complete this protocol by supporting the physiological mechanisms involved in nail growth and vitality.

The innovation of this formula lies in the combination of soluble keratin, whose amino acid composition is similar to that of the nail, with targeted nutritional cofactors. This synergy helps activate natural growth processes and strengthen the cohesion of keratin fibers, resulting in nails that are visibly more resistant, less brittle, and enhanced.

Description

Use

DIRECTIONS FOR USE

Take 2 capsules daily, with a meal, with a large glass of water. Repeat if necessary.

PRECAUTIONS FOR USE

A food supplement should not be used as a substitute for a varied diet and a healthy lifestyle. Keep out of reach of children; not recommended for pregnant or breastfeeding women and children under 12 years of age. Do not exceed the recommended daily dose.

CONSERVATION

Store in a cool, dry place away from light.

Composition

INGREDIENTS

Keratin hydrolysate; Lithothamnion powder (Lithothamnium calcareum); Plant-based capsule shell (coating agent: hydroxypropyl methylcellulose); Magnesium oxide; Bamboo extract (Bambusa arundinacea) including silica; Pea fiber (Pisum sativum); Bulking agent: microcrystalline cellulose; Anti-caking agent: magnesium salts of fatty acids; Zinc oxide; Cholecalciferol (vitamin D); D-biotin (vitamin B8).

NUTRITIONAL ANALYSIS

Per 2 capsules:

Keratin hydrolysate: 200 mg

Lithothamnion powder: 200 mg

Bamboo extract: 90.68 mg

of which silica: 68 mg

Magnesium: 56.2 mg (15% NRV*)

Zinc: 5 mg (50% NRV*)

Vitamin D: 2.5 μg (50% NRV*)

Biotin: 25 μg (50% NRV*)

* NRV: Nutrient Reference Values

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The heart of nutricosmetics

Product assets

Keratin

Keratin is an essential protein for the structure of hair and nails. Rich in 18 amino acids, it supports the repair and strengthening of these tissues, enhancing their resilience and shine. It also helps prevent breakage and damage, promoting stronger, healthier hair and nails.

Magnesium

Magnesium plays a key role in regulating the nervous system, helping to reduce tension and limit the effects of stress. It also supports muscle relaxation, helping prevent cramps and aiding recovery after physical exertion. By balancing calcium levels and modulating neuronal receptor activity, magnesium helps maintain an appropriate physiological response—promoting both physical and mental balance.

Zinc

Found in every cell of the body, zinc is an essential trace element involved in numerous biological processes. It plays a key role in the structure and activity of hundreds of enzymes, and helps maintain the stability of cell membranes and proteins. Zinc is also central to mechanisms of repair, renewal, and cellular regulation. Since it cannot be stored by the body, a regular intake is required to support these vital functions.

Keratin

Magnesium

Zinc

Our experts will answer your questions.

Frequently Asked Questions

What is nail keratin?

Keratin is the main protein that makes up nails. Naturally produced by the body at the nail matrix, it plays an essential role in nail formation and growth. This fibrous protein gives nails their solid, compact and resilient appearance while maintaining a degree of flexibility. Through the natural keratinization process, cells gradually transform into a protective structure capable of withstanding everyday stress.

Nails are not made up of keratin alone. They also contain water, lipids and various minerals that contribute to their balance and strength. When the keratin structure is of good quality, nails appear smoother, more even and less prone to breakage. Certain nutrients such as biotin, zinc, magnesium and silica are often associated with maintaining normal, strong nails.

What are the signs of weakened keratin?

When the keratin in your nails is weakened, several signs may appear gradually. Nails often become softer, thinner, and bend easily at the slightest impact. They may also break more quickly or have difficulty growing properly. This fragility sometimes leads to a feeling of nails being sensitive and not very resistant in daily life.

Split or cracked nails are also common signs of a weakened keratin structure. Ridges may appear on the nail surface, while the ends separate into several thin layers. Nails then tend to snag on clothes, break easily, and lose their smooth, uniform appearance.

What external factors damage nail keratin?

External aggressions are one of the main causes of nail weakening. Repeated exposure to water, frequent hand washing, or household chores can soften nails and disrupt their natural structure. In the long term, this repeated humidity promotes breaks, cracks, and splitting.

Chemical products such as detergents, solvents, or certain aggressive removers can also alter keratin and dry out the nail plate. Repeated manicures, excessive filing, artificial nails, or aggressive removal of semi-permanent polish also weaken nails. Finally, minor daily traumas such as repeated impacts or nail biting contribute to weakening their natural resistance.

How to protect your nails' keratin every day?

Preserving nail keratin primarily involves simple, regular actions. Hydration plays an essential role in keeping nails flexible and strong. Applying a nourishing cream or oil after washing hands helps limit dryness and protects the nail plate from external aggressions.

It is also advisable to protect hands during household chores to limit prolonged contact with water and chemicals. A gentle manicure also helps preserve the nail structure: it is better to file in one direction, avoid overly aggressive products, and allow breaks between polish or artificial nail applications.

Suitable strengthening treatments can complement this daily routine. Formulas combining hydrolyzed keratin, silica, zinc, or biotin are often used to help strengthen brittle nails and improve their resistance.

What nutrients are involved in keratin production?

Keratin production relies on several essential nutrients. Sulfur-containing amino acids like cystine and methionine directly contribute to the structure of this protein naturally present in nails. They help maintain their daily strength and solidity.

Certain vitamins and minerals also play an important role in maintaining normal nails. Biotin, also known as vitamin B8, is often associated with healthy nails and hair. Zinc, magnesium, and silica are also used in formulas dedicated to brittle nails to support their natural structure.

Dietary supplements containing hydrolyzed keratin, minerals, and vitamins can be integrated into a comprehensive routine dedicated to nail strength. Some formulas specifically combine hydrolyzed keratin, lithothamnium, zinc, and biotin to help reduce brittleness and support nail growth.

What's a good routine for stronger nails?

Adopting a regular routine helps maintain stronger nails that are less prone to breakage. In the morning, applying an oil or moisturizing treatment helps protect nails from daily aggressions. Wearing gloves during household chores also helps preserve keratin from moisture and cleaning products.

In the evening, it can be helpful to massage nails and cuticles with a nourishing treatment to improve their comfort and flexibility. These simple steps help limit dryness and gradually strengthen the appearance of fragile nails.

Every week, gentle filing helps maintain a regular shape and limit cracks. It is also advisable to space out aggressive manicures and regularly monitor the condition of your nails to quickly spot unusual fragility.

When to see a healthcare professional?

Brittle or splitting nails are common, but some signs warrant special attention. When fragility persists despite appropriate care, it may be helpful to seek professional medical advice to identify any underlying cause.

Significant changes in appearance, such as discoloration, very pronounced ridges, deep cracks, or unusual thickening, should also prompt a consultation. These symptoms can sometimes reveal a nutritional imbalance or a condition requiring specific treatment.

It is also recommended to consult a doctor when nail fragility is accompanied by other symptoms such as significant fatigue, hair loss, or skin problems. Appropriate support can then help to better understand the origin of the problem and implement the most suitable solutions.

Why do nails become brittle?

Nails often become brittle when their keratin is weakened by repeated aggressions such as water, household products, harsh nail polish removers, or certain manicures. Nutritional deficiencies, fatigue, or mechanical trauma can also contribute to weakening their natural structure.

Is keratin really important for nails?

Yes, keratin plays an essential role in the strength and resistance of nails. This protein constitutes a large part of their structure and helps to give them a stronger, smoother, and less breakable appearance. When keratin is weakened, nails generally become softer and more sensitive.

What products weaken the keratin in nails?

Detergents, solvents, some acetone-based removers, and harsh household products can weaken nail keratin. Repeated applications of semi-permanent polish, artificial nails, or aggressive manicure removal can also alter the nail surface and promote breakage.

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Your testimonies

Overall rating: 4.7083335 / 5 from 24 reviews.

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Review topics: ["results","nails"].

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Reviews

excellent produit pour ongles dédoublés

"très bon produit que j'utilise depuis 2 mois, mes ongles ne se dédoublent plus, je viens d'en recommander une 3°boite pour consolider le résultat."

— Martine T. (5/5)

Biocyte ongles forts

"Enfin un produit qui rend mes ongles plus solides et qui ne se dédoublent plus. J'entame la 3ème boîte."

— Micheline R. (5/5)

Excellent produit

"Efficace . Satisfaite"

— Valerie B. (5/5)

Je n ai que 10

"Je n ai que 10 jours de traitement donc je vais attendre un peu pour donner mon avis"

— Jocelyne K. (5/5)

Ongles métamorphosés

"Texture plus dure, pousse plus rapide : je recommande !"

— ÉMilie (5/5)

Coup de boost naturel

"Très efficace, sans effet secondaire. Mes ongles ont retrouvé de la vitalité."

— Daphné (5/5)

Bonne surprise capillaire aussi

"Mes ongles sont plus solides, et j’ai même vu une amélioration sur mes cheveux."

— Fanny (4/5)

Ongles renforcés en 2 semaines

"Mes ongles ne se dédoublent plus et sont plus épais. Très bon complément."

— Axelle (4/5)

Bonne routine

"J’intègre ce produit chaque année à l’automne. Zéro casse et de belles mains."

— Laurine (4/5)

Ongles brillants et solides

"Ils poussent plus vite et leur apparence est plus saine. Je suis ravie."

— Clarisse (5/5)

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