20 Vol Developers

Do you know 20 vol developer is the most popular choice for hairdressers?

Developers work by raising the cuticle layer and allowing pigment to sink inside. Although a higher percentage of peroxide means higher lift, you can also expect an increased chance of dryness and damage. 

Generally, 20 vol developer contains 6% peroxide. This achieves 1-2 levels of lift without extreme dryness and damage afterwards. The developer is also perfect for covering average amount of grey hair, although we suggest using 30 vol developer for the most stubborn grey hair.

For smaller transformations, there is zero lift developer, 3.5 vol developer, 5 vol developer or 10 vol developer.

Bleach & Developer

Don't forget to stockpile plenty of bleach for the most spectacular transformations. When used together, bleach and 20 vol developer can achieve greater lift, although the exact amount depends on the products, technique and texture of the hair. 

Before getting started, it's important to check the compatibility of your colour, bleach and developer. You can find this information in our collection of colour charts.

Choosing Between Peroxide and Developer

Developers are popular because each one contains a blend of peroxide and conditioner. Due to the conditioning ingredients, hair is less likely to experience extreme dryness and damage. Some developers even contain additives to protect hair during the colouring process. 

Another difference between developer and peroxide is the consistency. Developer is thicker and less runny, which is considered better for a balayage.

While developers tend to cost a bit more, you can expect better results, which is the most important consideration.