Permanent hair colour contains hydrogen peroxide whereas semi doesn't. Permanent colour changes the colour inside the hair. Semi doesn't. Permanent colour is permanent whereas semi only last 6-8 washes.
permanent hair color is you when you're born with it or it just turn like that and semi permanent is for a long while.
There is permanent hair color and semi-permanent hair color. _____________ Demi permanent and temporary are also known as non permanent hair color.
Equivalence point is the point at which the reaction is justcomplete. End point is when there is a permanent color change due to the presence of a indicator.
Yes, it's fine to apply permanent color over semi permanent.
There is basically no difference between Japanese hair and American. The only difference is the color, Japanese tends to have darker brown color, where as American have bronze color.
Yes.
Between 8.5 and 9. Permanent colours are alkaline.
Yes, you can apply permanent hair color on top of semi-permanent hair color. Make sure that you do a deep conditioning treatment or hair masque before and after you color your hair.
Of course you can. Semi permanent dye simply adds color to your hair. A permanent will actually cause your natural color to change. But remember this... color doesn't lift color. Therefore if your semi permanent hair color is darker than the permanent color you are going for---- it isn't going to work. You need to use a color remover before hand. And color removers are REALLY damaging to hair.
Color
color
the color
The Color.