Gray hair tends to be resistant and typically takes longer to grab hold of the hair. Since there is no pigment, there is no need to lift. You just need to open the cuticle enough to deposit the color. If you feel you can get full coverage using a 10 or 15 volume then by all means use a lower volume.
10 volume developer doesn't cover grey hair, regardless of how long you leave it on. A 10 volume is used for deposit and a slight lift, but not enough lift needed to cover grey. At best it will blend the grey but they will still be visible. To fully cover grey hair you need to use 20 volume.
Grey needs at least a 10 volume and sometimes a 20 volume developer because grey hair is stubborn at opening up to accept color. It's coarser and the cuticle can be more tightly closed, making a 20vol necessary to open it more.
Even if you're using it with a 10 volume, it's still permanent color with a high high amount of ammonia. If you're using this as a filler you're doing unnecessary damage to your hair, and possibly creating more porosity issues.
For any grey hair application, use 20 Volume developer (6% peroxide). Grey hair needs extra softening to open up.
10 Volume (3%): Used for depositing colour without lifting the natural hair colour. This volume is suitable for toning or darkening. 20 Volume (6%): Provides moderate lift and is commonly used for covering grey hair or lightening natural hair colour by one to two shades.
A: Examples of the Hydrogen Peroxide Content via a 10, 20, 30, 40, and 50 Volume Peroxide is as follows: (Approximately): 10 Volume = 3% Peroxide, 20 Volume = 6 % Peroxide30 Volume = 9 % Peroxide, 40 Volume = 12 % Peroxide and a 50 Volume = 15% Peroxide.
Always Use a 20 Volume Developer
Since there is no pigment, there is no need to lift. You just need to open the cuticle enough to deposit the color. If you feel you can get full coverage using a 10 or 15 volume then by all means use a lower volume.
Hair dye volumes refer to the strength of the developer, which impacts the level of color lift. A 10 Volume developer provides minimal lift, perfect for depositing color. A 20 Volume developer lifts hair by 1-2 levels, while a 30 Volume developer lifts by 2-3 levels.
10 Volume (3%) Developer
When your current hair color is close to your desired hair color, a Volume 10 developer is used to mix with bleach. Depending on your hair texture and history, it provides a gentle lightening of 1-2 levels.
Along with a drop in melanin production, grey hair produces less sebum – the natural oil that keeps it soft and supple. As its texture changes, your hair might feel more dry, coarse, or wiry. This means it won't absorb hair dye like it used to.
The mean age of senile graying for Caucasians (whites) is mid-30s; for Asians of the late 30's; and for Africans of mid-40s. There is a practical declaration which states that at the age of 50, 50% of the population has 50% gray hair (rule of thumb) [4] . The gray of age varies according to race and ethnicity. ...
Is it better to go lighter or darker to cover grey hair? As for your permanent colour kit choice, for the best grey coverage, Josh recommends choosing a shade close to your natural root colour (that's the colour between the greys.) "Make sure to never stray more than two shades away from this,” says Josh.
If you are using toner that mixes with a 10 or less volume developer, it's going to do little to no damage to your hair. That's because the higher the volume of developer, the more damage.
Herbatint Permanent Hair Dye For Women - 10N Platinum Blonde - For Up To 100% Gray Coverage of Resistant Gray Hair - Ammonia-Free, Alcohol-Free & Vegan - Salon Influenced Hair Color 5.75 fl oz.
It could be that your hair is resistant to tint, especially when the hair texture has changed as a result of going white. But also it could be that by going lighter, either all over, or by introducing (subtle) highlights you would not see the regrowth strip quite as quickly as if it were lighter.
Use 20 Vol developer for most grey hair coverage situations.
It won't significantly lift your base color and is the least damaging to the hair. 10 Volume is only used to open the cuticle layer so the color molecules deposit in the cortex for long-term results.
Similar to 5 volume, 10 volume can be used with permanent color lines for depositing color, however, it will not offer much grey coverage or lift. If the hair is a finer fabric it could over a slight one level lighter shift in base color and grey blending.
When I go dark I typically use a 10 vol over my Grey and they get covered okay but I find they fade first. I also only use demi or semi dye though, so that definitely affects the results.
You won't be surprised to hear that you should be covering the grey with brown dye, but the best hair dye for grey hair here is a medium-light shade, even if you are naturally very dark, as this will complement your naturally paling skin.
For precise application, we recommend using a bowl and brush rather than applying with just the bottle. Start applying where you see the most gray hair, and where your grays are more resistant to color. This is usually at the front hairline and at the natural part of your hair.
Found in a brown bottle, hydrogen peroxide is an antiseptic liquid that in the past was typically used to treat cuts or other skin wounds, and kill germs. However, peroxide is often used in non-medical situations, including for cleaning, disinfecting and stain removal.
10 Volume Developers
These developers are also called no lift developers because they only provide moderate lift to your cuticles, i.e., lift by 1 level. This developer is perfect for when you are going to color your hair a darker color than the natural shade.
1 litre 10 vol. – add 100ml 100vol. hydrogen peroxide to 900ml water OR add 500ml 20vol. hydrogen peroxide to 500ml water.