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long lasting die will stay in your hair for a while and will kill your hair if you keep using it but if you use semi permanent hair die it means it wont stay in for the whole time it will only last for a little time like a year or so and wont kill your hair

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Wiki User

12y ago
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Wiki User

11y ago
Semi-Permanent Hair Colour
  • can be recognized by stylists applying colour directly from the bottle onto the hair
  • contains no ammonia
  • is not mixed with a developer such as peroxide, so colour is deposited on the outside of the hair
  • the hair cuticle is not lifted (because no developer is used) so there is no lifting of existing colour
  • lasts four to six shampoos
  • used for tonal changes, adding shine, or for temporary fashion colours like fuschia or royal blue
Demi-Permanent Hair Colour
  • contains no ammonia
  • is mixed with an activator, such as peroxide
  • activator lifts cuticle slightly so colour sits in and under the cuticle
  • lasts 18 to 20 shampoos
  • fades gradually and then washes out to the original colour of the hair
  • used for toning, changing tone, filling in highlights, and going darker
  • good way to temporarily change hair colour to try something new
  • also recommended to colour hair that is already significantly damaged or over processed
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Wiki User

14y ago

Demi permanent lasts longer

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Anonymous

Lvl 1
3y ago

It lasts a long time

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Q: What is the difference between long-lasting and semi-permanent hair dye?
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