If the hair is a finer fabric it could over a slight one level lighter shift in base color and grey blending.

Developer at Home: Step-By-Step How to Use Wella Toner and Developer at Home: Step-By-Step

Massage the toner into your scalp: Toner can be an irritant, so steer clear of massaging it into your scalp. Curl Centric follows a strict editorial policy that produces accurate, factual, and honest content to help you make the right hair care decisions. Just keep in mind that it won’t give you as much color payoff or longevity as a 20-volume developer would. It’s easier to understand how long you can leave bleach in your hair when you know what developer is doing in the mix in the first place. So, whether you didn’t mix enough bleach for your hair length or you’re encountering issues with the mixture drying, having extra powdered bleach and developer on hand is crucial.

For example, if you have more than 50% gray hair, the only developer to use for 100% gray coverage and long-lasting color is a 20-volume developer.

Care 20 Volume Creme Developer, Uniform Lift, Easy to Salon Care 20 Volume Creme Developer, Uniform Lift, Easy to

Open-air processing such as balayage is ideal for 40 volume developer as it allows for maximum lift but the control of less heat. It's no longer just a way of covering gray hair; it can also transform your hair with stylish and appealing color. Volume 30 developer is very strong, so only use it on thick or coarse hair, as it can damage thin or fine hair.Blonde hair may lift 2 levels in as little as 10 minutes when you use 20 volume developer, while darker hair may take closer to 20 or 30 minutes to achieve 1-2 levels of lift with 20 vol developer. Then, gently wash your hair with shampoo and dry it before applying Vaseline or your personal hair protector to prevent color staining. The 20 volume developer opens the hair cuticle but unlike 10 volume, it provides lifting of the hair by one to two levels.

How much 20 volume developer to mix with hair color How much 20 volume developer to mix with hair color

Darker hair requires a higher volume developer to create a stronger chemical reaction that will open more sealed cuticles. Because grey hair has no pigment, it needs minimal lifting to deposit pigment into the cuticle shaft—any developer over volume 20 will damage grey hair. A Volume 30 developer is strong enough for most individuals to notice scalp irritation, though it allows you to achieve a 3-4 level lift with bleach. You could upgrade to volume 30 to change your color 3 to 4 shades, but keep in mind it can damage thin or fine hair. If you bleach when your hair has any symptoms of damage or has recently been subjected to a harsh chemical treatment (like bleach, color, perm, etc.

Chemists spend countless hours figuring out the best combination so following the color lines suggestions is always best. It's designed for use when you want to add a color tone or tint to the hair of the same lightness level. You want to make sure that you’ll be satisfied with the toner shade and that your hair and scalp won’t react poorly to the toner/developer mixture.