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Semi Permanent Hair Dye - Baby Blue 100ml

Semi Permanent Hair Dye - Baby Blue 100ml - Main image
$3.66 $4.95 In stock

Category: Crazy Color by Renbow

  • Semi-permanent: usually fades in around 10–12 washes, though some colours (especially blue, green, and red pigments) can linger longer on bleached or porous hair.
  • No developer needed: the dye is ready to use straight from the bottle.
  • No ammonia or peroxide in the colour cream itself.
  • Works best on very light blonde or pre-lightened hair for vivid results. Darker hair will usually give a subtler tint.

How To Use Crazy Color Hair Dye:

  • Patch test: Test on skin 24–48 hours before use to check for reactions.
  • Strand test: Try on a small section first to see the colour result and fading.
  • Prep hair: Shampoo only (no conditioner), then dry hair. Wear gloves and old clothes.
  • Apply dye:Cover hair evenly section by section and comb through. Leave for:
    • 15–30 mins for normal colour
    • 45–60 mins for brighter colour
  • Rinse: Rinse with cool water until mostly clear. Avoid shampooing for 48–72 hours for longer-lasting colour.

Tips For Longer-Lasting Colour:

  • Wash hair less often.
  • Use sulphate-free shampoo.
  • Use cool water instead of hot.
  • Dry shampoo can help extend time between washes.
  • Heat styling and clarifying shampoos fade colour faster.

Important Warnings:

  • Even though it’s “semi-permanent,” some shades may stain bleached hair for weeks or months.
  • Blues, greens, reds, and black are often the most stubborn pigments.
  • Pastel shades like Marshmallow or Silver usually need hair lifted to a very pale blonde (level 10) to show properly.

Approximate Bottles Needed:

  • Short hair: 1 bottle
  • Medium hair: 2 bottles
  • Long/thick hair: 3–4 bottles

Description

  • Semi-permanent: usually fades in around 10–12 washes, though some colours (especially blue, green, and red pigments) can linger longer on bleached or porous hair.
  • No developer needed: the dye is ready to use straight from the bottle.
  • No ammonia or peroxide in the colour cream itself.
  • Works best on very light blonde or pre-lightened hair for vivid results. Darker hair will usually give a subtler tint.

How To Use Crazy Color Hair Dye:

  • Patch test: Test on skin 24–48 hours before use to check for reactions.
  • Strand test: Try on a small section first to see the colour result and fading.
  • Prep hair: Shampoo only (no conditioner), then dry hair. Wear gloves and old clothes.
  • Apply dye:Cover hair evenly section by section and comb through. Leave for:
    • 15–30 mins for normal colour
    • 45–60 mins for brighter colour
  • Rinse: Rinse with cool water until mostly clear. Avoid shampooing for 48–72 hours for longer-lasting colour.

Tips For Longer-Lasting Colour:

  • Wash hair less often.
  • Use sulphate-free shampoo.
  • Use cool water instead of hot.
  • Dry shampoo can help extend time between washes.
  • Heat styling and clarifying shampoos fade colour faster.

Important Warnings:

  • Even though it’s “semi-permanent,” some shades may stain bleached hair for weeks or months.
  • Blues, greens, reds, and black are often the most stubborn pigments.
  • Pastel shades like Marshmallow or Silver usually need hair lifted to a very pale blonde (level 10) to show properly.

Approximate Bottles Needed:

  • Short hair: 1 bottle
  • Medium hair: 2 bottles
  • Long/thick hair: 3–4 bottles

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    Customer Reviews (4.8 / 5 · 5 reviews)

    Isabella ★★★★★

    I was a bit nervous how this would look on my light brown hair, but after two washes the pastel tint is exactly the baby blue I wanted. The no-developer application made it super easy to do myself at home.

    Aurora ★★★★★

    My bleached ends soaked this baby blue right up and it's lasted well past 12 washes without completely disappearing. The application was super easy with no developer, though I wish the color came out a tiny bit brighter on the first go.

    Evelyn U. ★★★★★

    I’ve used it on my bleached hair and the pastel tone is lovely, though I can already see it fading a bit after four washes. The fact that no developer is needed made application quick and easy.