Product Description
Haircos Peroxide 12% 40 Vol
Maximum lift. Mix with bleach powder or high-lift colour when you need to go a long way lighter — dark roots, blondes and pre-lightening.
Best for
- Up to 3–4 levels of liftBlondes, bleaching with lightening powder and stubborn dark roots
Good to know
- The strongest of the three. Best in experienced hands — not recommended for a first-time colour or a sensitive scalp. Watch the processing time closely.
What it does
- Creamy texture stays on the brush and on the hair — no dripping down the face and neck
- Mixes smoothly with permanent hair colour cream and with bleach / lightening powder
- Glycerin and a conditioning polymer help hair feel softer after colouring
- A stabiliser keeps the developer steady in the bottle between uses
- Light fragrance
- Same formula in 6%, 9% and 12% — only the strength changes
Mixing guide
- Hair colour cream — usually 1 : 1 (some brands use 1 : 1.5)
- Bleach powder — 1 : 1.5 to 1 : 2
- Always follow the ratio printed on your colour or bleach pack first
How to use
- Do an allergy test 48 hours before, and a strand test to check timing.
- Put on gloves. Mix in a plastic or glass bowl — never metal.
- Apply to dry, unwashed hair, section by section.
- Process for the time on your colour pack, checking every 5–10 minutes. With bleach, do not go past 45 minutes.
- Rinse thoroughly, then shampoo and condition.
Pro tips
- Use the mixture within 30 minutes and throw away any leftover — never store mixed product in a closed bottle.
- Recap the bottle tightly straight after pouring.
- Colouring at home for the first time? Start with 6%.