The cosmetic is intended for daily care of damaged and split nails. The active ingredients effectively moisturize and regenerate the nail plate, restoring its healthy appearance. Horsetail is a real wealth of silicon that affects the reconstruction of nails. In contrast, MS restores their strength and elasticity. The bottle has a convenient brush for easy application of the serum.Biotebal nails strengthening serum, action:A specialized nail serum that penetrates into the deep layers of the nail, thanks to which it maintains optimal hydration, extremely important for nail health. The optimal water content in the nail is from 7% to 18%. If the nails are dehydrated, they become brittle and fragile.The Hydro-StrongTM formula is based on the use of hydroxypropyl chitosan - a component that adheres closely to keratin, the main nail building material. The serum creates an invisible protective layer that protects the nail plate against moisture loss and against the harmful effects of external factors. The beneficial effects of the combination of horsetail extract and hydroxypropyl chitosan have been confirmed in clinical studies. The action of both these ingredients significantly reduces the stratification and brittleness of nails, improving their appearance and condition.The effects of using the BIOTEBAL serum STRONG NAILS have been noticed after 3 weeks of use :moisturizes nails according to 93% of respondents *makes nails look healthy and neat according to 93% of respondents *regenerates and quickly rebuilds nails after cosmetic procedures or hybrid varnish according to 100% of respondents ** Application tests on a group of people who used the product regularly for 3 weeks.Application:For damaged, weak, dry, split and brittle nails.Also recommended for nail regeneration after cosmetic procedures, e.g. after a hybrid manicure. Thanks to the specialized Hydro-StrongTM Formula, the BIOTEBAL STRONG NAILS is quickly absorbed and penetrates deep into the nail, strengthening its structure. Action on deep layers promotes the reconstruction and growth of a healthy and strong nail.Use:Use daily on clean and dry nails. To do this, apply a thin layer of serum to your nails using the brush supplied. The serum dries quickly, leaving an invisible, odorless, imperceptible layer that protects and nourishes the nails. This layer is soluble in water, therefore BIOTEBAL STRONG NAILS should be applied after washing and drying the nails, preferably in the evening before bedtime (to keep the product on the nail as long as possible). The serum can be easily washed off with water. There is no need to use nail polish removers.Composition:The serum contains a specialized Formula Hydro-StrongTM, which includes: hydroxypropyl chitosan, horsetail extract, dimethyl sulfone and biotin.Hydroxypropyl chitosan (HPCH) - a component that adheres closely to keratin, the main building material for nails. It creates an invisible protective layer that protects the nail plate from the harmful effects of external factors and moisture loss. Thanks to this, it maintains an optimal level of hydration, which affects the elasticity, strengthening and beautiful appearance of the nail.Horsetail (Equisetum arvense) - of all herbs, horsetail contains the most organic silicon in the form of silicates, which bind with nail keratin - its building material, thanks to which they rebuild and nourish the nails.Dimethylsulfone (MSM) - is a natural, bioavailable form of sulfur. It provides nails with hardness and elasticity, because it strengthens the keratin layer, which is the main building block of nails.Biotin - called "vitamin beauty" is responsible for healthy appearance and proper condition of nails.Packing Capacity:6.6 milliliter.