Whats the difference between semi and demi permanent hair color?

Im useing pravana and it says you can make it demi permanent useing 0 lift developer, i dont want lines in my hair, so is demi permanent the way to go?





Also how long does it last?Whats the difference between semi and demi permanent hair color?
demi permanent hair color just means it'll last a bit longer than semiWhats the difference between semi and demi permanent hair color?
Those two terms are interchangeable. They usually last about 12-24 shampoos. permanent last way longer. But for more info, check out the link below.
demi permanent lasts longer(12-24)and usually is a lower quality than semi permanent lasts 6-12 washes so go with a semi permanent