Peroxide & Developer
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from 3684 reviewsThank you
Love this leave in treatment. It smells incredible and leaves my hair soft not heavy or sticky. Revives curls nicely too
Perfection with this color! Thank you Cosmetic World
Very precise and make everything more easy to apply my products
I give 5 golden starts for price and delivery 👌
Great costumer service, quick shipping and amazing selection 🫶🏻
Excellent product! It was delivered on time. I would buy again.
Me encanta
I ve been using this cream developer first time, and it gives excellent results. It mixes easily, applies smoothly, and works exactly as expected without any harsh smell or irritation. My hair color comes out vibrant and even every time.
very happy with this product, highly recommended
I have been using this hair mask for many years, I always repurchase it. I use it in place of a regular conditioner. If you have dry or damaged hair, this truly helps to deeply hydrate and repair it. My hair always feels soft, silky, and a lot more manageable after I use this. No other hair mask compares to this formula. I highly recommend it!
This whole line is really amazing. My hair was dry on the ends but using this has helped my hair recover.
Great hold and perfect size for travel.
Love this. Makes my hair, soft and manageable.
Perfeito, produto que toda mulher deveria ter, sou apaixonada
What customers think about the store
Toronto-based store offering professional hair care products with competitive pricing and a rewards program. Customers praise fast shipping, wide product selection, and excellent customer service. Many highlight quality brands, effective results, and reliable ... Toronto-based store offering professional hair care products with competitive pricing and a rewards program. Customers praise fast shipping, wide product selection, and excellent customer service. Many highlight quality brands, effective results, and reliable delivery. Some concerns about expired products and shipping costs, but overall positive feedback on product quality and convenience.
Read moreAI-generated from customer reviews.
Developer comes in different strengths, the common ones being 10 volume, 20 volume, 30 volume and 40 volume. It’s possible to buy peroxide in stronger concentrations but they’re much too strong to use on hair and should be avoided. Developer strength is sometimes represented as a percentage. 6% and 20 vol. are the same strength.
Equivalent Developer Strengths;
- 10 Volume - 3%
- 20 Volume - 6%
- 30 Volume - 9%
- 40 Volume - 12%
What strength/volume developer should I use?
10 volume is ideal for use when you don’t want the natural hair color to be lightened by the dyeing process. It’s used in toners and color glazes. These types of dyes are known as “deposit-only”.20 volume peroxide is commonly used with semi-permanent and permanent hair colors. It can have a lightening effect on natural, undyed hair of 1 or 2 shades when used with permanent color.
When mixed with bleach powder, 20 volume developer will lighten virgin hair by about 5 levels.
30 volume developer is used for lifting out color. Its main use is in bleaching and it can lighten around 7 levels depending on the bleach powder used.
40 volume is occasionally used to lighten very dark, stubborn hair as part of the bleaching process. It lightens quickly and its effects are harsher than lower concentrations. 40 volume is not recommended for on-the-scalp use. Using 40 volume developer can cause hair damage and chemical burns if not used correctly. Instead, using multiple applications using lower volume peroxide will allow more controlled lightening.
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