KERATINE FORTE 500 MG

The capsule of Keratine Forte 500 mg is made from hydroxypropyl methylcellulose (HPMC), a plant-based material that serves as an alternative to animal-derived gelatin. However, the keratin itself is not plant-based, as it is sourced from natural origins rich in this protein, which are essential to ensure its effectiveness on hair and nails.

An essential hair protein

Keratin is a fibrous protein naturally present in the body, particularly in the hair, nails, and skin. It makes up to 95% of the hair fiber, making it a key element of hair structure. Composed of 18 amino acids, it is particularly rich in cysteine, a sulfur-containing amino acid that contributes to hair strength and resistance.

Thanks to this unique composition, keratin for hair acts as a true “framework” for the hair. It helps maintain its cohesion, strength, and elasticity, while contributing to its smooth and shiny appearance. When keratin production decreases or the fiber is damaged, hair can become duller, brittle, and weakened.

Where is keratin found?

Keratin is mainly present in hair, where it is predominant, but it is also found in nails and the superficial layers of the skin. In these tissues, it plays an essential protective role against external aggressions. In food supplements, keratin usually comes from animal sources, such as sheep's wool, then purified and processed to be assimilated by the body. Certain forms, such as water-soluble keratin, are specifically designed to improve absorption and optimize benefits on hair and nail quality.

Hair Fiber Structure

Keratin is at the core of the hair's structure, which consists of three distinct layers. The cuticle, on the surface, acts as a protective barrier against external aggressions. The cortex, located in the center, represents the part richest in keratin and ensures the hair's strength, elasticity, and hold. Finally, the medulla, at the core of the fiber, plays a more secondary role.

The quality and cohesion of keratin in the cortex determine the overall appearance of the hair. A keratin-rich fiber is generally stronger, shinier, and more resistant, while a deficit or alteration of this protein can lead to a visible loss of quality.

Hair Cycle and Keratin Production

Keratin production is directly linked to the hair's life cycle, called the hair cycle. During the anagen phase (growth phase), keratin production is active and allows for the formation of new hair. In the catagen phase (resting phase), this production slows down, then stops in the telogen phase (shedding phase). Once keratin is synthesized, it is no longer renewed in the existing fiber. This means that already formed hair cannot repair itself deeply, hence the importance of supporting keratin production at the root, particularly through targeted dietary supplements.

For Hair

Keratin is essential for maintaining healthy hair. It helps to strengthen the hair shaft, which limits breakage and reduces the appearance of split ends. By improving the internal structure of the hair, it also contributes to better elasticity and greater resistance to daily aggressions. It also plays an important role in the visual appearance of hair. A good keratin content promotes shinier, smoother, and more supple hair, with a softer feel. Hair thus appears more manageable and visibly healthier.

For Nails

Keratin is also a major component of nails. Sufficient intake helps to improve their resistance and limit their fragility. Nails thus become harder, less brittle, and less prone to splitting. By strengthening their structure, keratin contributes to more even and stronger nails in everyday life. It is a particularly interesting active ingredient for soft, brittle, or damaged nails.

Hair weakened by aggressions

Hair is exposed to numerous external aggressions that can alter its natural keratin. Hair dyeing, repeated straightening, frequent use of heating devices, as well as UV rays, chlorine, or pollution progressively weaken the hair fiber. These aggressions lead to a degradation of keratin, making hair drier, more brittle, and duller. In this context, a targeted intake of keratin helps to support the hair fiber and promote deep hair reconstruction.

Limitations of cosmetic care

Conventional hair care products, such as shampoos or masks, primarily act on the surface. They can temporarily improve the appearance of hair, but their effect is temporary and does not treat the underlying cause. In contrast, a dietary supplement like Biocyte's Keratine Forte 500 mg works from within, providing the necessary nutrients for hair fiber formation. This approach allows for a more comprehensive and lasting improvement in hair quality.

Water-soluble keratin

Water-soluble keratin is a specific form designed for better assimilation by the body. Its structure allows for optimal bioavailability, facilitating its absorption and use by the body. This type of keratin is particularly interesting for hair strengthening, as it directly provides the necessary elements for the formation of higher quality hair.

Proven efficacy

Keratin supplementation is associated with a visible improvement in hair quality. It contributes to stronger, shinier, and more resilient hair, while helping to limit breakage. In some cases, it can also help reduce hair loss due to hair fragility by strengthening existing fibers and supporting an environment favorable for optimal hair growth.

If you want to know more, the article What is the best hair supplement? can provide more details regarding keratin in food supplements.

Recommended dosage

For optimal results, a daily intake of 500 mg of keratin is recommended. This is why Biocyte developed the Keratine Forte 500 mg dietary supplement, designed to meet this specific need. This dosage provides a targeted amount of keratin suited to the needs of hair and nails. Consistent use is essential to allow the body to effectively absorb the active ingredients and benefit from their full effects.

Duration of use

The duration of use depends on the condition of the hair. A period of around one month may be sufficient for maintenance, while a duration of 3 months is often recommended for damaged or weakened hair. This regularity helps align with the hair growth cycle and supports improvements in the quality of new hair growth.

To optimize the effects of keratin, it is beneficial to combine it with certain key nutrients. Vitamins B6 and B8 (biotin) contribute to protein synthesis and support hair health. Zinc, for its part, contributes to the normal formation of keratin and the maintenance of normal hair.

Sulfur-containing amino acids, such as cystine and methionine, are also essential because they are direct components of keratin. This synergy of active ingredients allows for a global action on hair strength, growth, and resistance.

Keratin does not act directly as a growth stimulator. However, it improves the scalp environment and the quality of the hair fiber, which promotes stronger hair that is less prone to breakage. This can give the impression of more visible and healthier growth.

Keratin is particularly suitable for hair and nails, as it constitutes their primary structure. Collagen, on the other hand, acts at the level of the hair papilla, and also plays a role in hair beauty.

The first results of keratin supplementation are usually visible after 4 to 8 weeks. This timeframe corresponds to the hair growth cycle and the time needed to observe an improvement in hair fiber quality.