Alkali.
there is 9 % of an alkali in hair gel and the rest is water . the alkali in it is what makes it sticky.
Remove it
Alkaline
They do not have color.
Alkalis expand and soften the hair shaft.
His hair color is blue
blue
hi
red
"What colour is your hair?" is correct.
Hair color is a product that can be purchased in many retail stores. When applied, hair color will change the appearance of your current hair color.