HAIR STRAIGHTENING METHOD Russian patent published in 2024 - IPC A45D7/02 

FIELD: cosmetic industry.

SUBSTANCE: invention relates to the cosmetic industry and represents a method for hair straightening, which includes successive steps at which: a) preparing the hair for the procedure by cleaning it from dirt by washing; b) drying hair for 60% of complete drying; c) hair is divided into zones: left and right frontal-parietal, left and right temporal-lateral, left and right upper-occipital, left and right lower-occipital, fixing each section with a clamp; d) each of the zones is divided into strands with thickness of 1–1.5 cm, on each of which the hair nanoplasty composition is applied; e) combing hair from frontal part to back of head; f) holding the nanoplasty composition for 20 to 80 minutes depending on the hair structure; g) completely washing the composition with water; h) drying hair to complete drying; i) dividing hair into zones similar to step c); j) each of the zones is divided into strands with thickness of 1–1.5 cm, on each of which a keratin hair composition is applied; k) repeating step e); l) holding the keratin composition for 10 to 20 minutes; m) repeating step h); n) hair strands are thermally treated with a straightener, wherein the strand thickness is 0.5–1.5 cm, and the straightener temperature is 170–230 °C depending on hair structure; o) washing the keratin composition with shampoo; p) step h) is repeated while observing the direction of hair growth.

EFFECT: providing straightening of coarse hair without deterioration of their condition due to taking into account the degree of damage and structure during the procedure.

2 cl, 1 dwg, 3 tbl, 3 ex