Peroxide & Developer
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from 3711 reviewsOne of my hairstylist recommended me this mask and I’ve been using this mask for almost 8 years this is the best mask so far for dry hair and if you colour your hair a lot
This toning foam is the best! Tones cleanly and brilliantly, while giving both volume and softness. 5/5 recommend!
Good product and good CosmeticWorld
service!
This is pretty dark. Darker than an average level 6. It acts more like a level 5 or In between a 5-6 level. The tone looks like a natural brown. No red involved. Pretty concentrated.
It's not a strong violet but you don't need a lot. Great overall. Gel consistency.
Great tone. A mix of blue and purple tones and great for getting that ashy blond.
Perfect demi cream colour.
Enjoyed this product. Made my hair soft and easily manageable.
This is great for toners and demi/semi products. Does not lift and there are no odours. It's a creamy consistency.
Great developer, no strong odours. Works well to cover more of the Greys if you're using a demi and it's cream form. Note that it will every so slightly lift the tone compared to the 1.9 emulsion.
Perfect natural tone- covers at least 70% of Greys
I’ve had a lot of success using this, and my hair doesn’t come out feeling like straw. What more could I ask for? Will definitely keep using.
Cosmetic world is the best. Thay have high quality products. Thay also providing great service, Quick and reliable delivery. I'm happy with my hair care products from them every year.
Easy placement with this processing solution.
I only saw results from this mask, it is the best for my hair, I will buy it again
What customers think about the store
Store offers professional hair/beauty products with competitive pricing and fast delivery. Customers praise excellent selection, rewards program, reliable service, and product quality. Quick shipping (often 24-48 hours) and secure packaging highly valued. Some... Store offers professional hair/beauty products with competitive pricing and fast delivery. Customers praise excellent selection, rewards program, reliable service, and product quality. Quick shipping (often 24-48 hours) and secure packaging highly valued. Some concerns about occasional shipping delays, expired products, and packaging damage.
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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