Crystallizing straight is an innovative new technique developed and formulated by Shiseido Professional in Japan. Shiseido Professional has revolutionised thermal straightening by developing a range of products that can be used on resistant hair through to even the most fragile, porous hair.

Crystallizing Straight has 3 different strength of solutions to straight the hair.

Crystallizing straight(H) solution/for healthy ,virgin hair.
Crystallizing straight(N) solution/for colored , tinted hair.
Crystallizing straight (R) solution/for bleached , hi-lited hair.