For good grey coverage, we recommend 6% hydrogen peroxide. This is why at WECOLOUR this is the standard percentage that comes with your hair colour, unless you can choose the activator percentage yourself when ordering. If you do not have grey hair and only want one colour level lighter, you could also use 3%.
Brush the gray hair patch with 20, 25, or 30 volume peroxide (depending on how resistant the gray hair is, to begin with. The peroxide will pop open the cuticle and make the gray strands soft and pliable so that it easily will take the color and it won't slide off.
To cover grey hair and achieve an intense ash-brown color, you need to choose the right volume of developer that gives the correct depth and coverage. Generally, the most recommended developer is the 20-volume developer, as it helps in darkening hair by 3 - 4 levels.
Hydrogen Peroxide: my advice; just don't! I have also spoken to professionals who advise against this. Even though drug store hydrogen peroxide is only around 3% peroxide it will still act as bleach. This is a harsh treatment; you are bleaching your hair, and you could end up with more discolorations.
The phenomenon of grey hair turning back to its natural color can be attributed to several factors: Melanin Production: Hair turns grey due to a decrease in melanin production in hair follicles. In some cases, the follicles may begin to produce melanin again, leading to a return of color.
White hair typically cannot turn black again naturally. The graying of hair is largely influenced by genetics and aging, which affect the production of melanin, the pigment that gives hair its color. When the hair follicles stop producing melanin, hair turns gray or white.
Premature graying may be reversed with vitamin B12 supplementation only if vitamin B12 deficiency is the cause. If you are graying due to other factors, such as genetics, zinc deficiency, and medications, your gray hair cannot be reversed.
Apple cider vinegar not only lightens hair color to diminish brassy tones but also acts as a natural cleanser, removing product buildup and hard water residues. You can make an apple cider vinegar hair rinse for gray hair at home. Mix one tablespoon of apple cider vinegar with one cup of water.
Regarding using baking soda for gray hair, experts endorse its potential benefits such as controlling pigmentation loss, lightening the strands, and providing texture. It can be used on coarse grey locks to make them smoother too by eliminating product buildup from oils or soaps.
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.
20 volume hair developer
20 volume developer is also a good option if you're looking to cover up some gray hair. It won't lighten your hair, but it will help to deepen the color and make it last longer.
The choice between a 20 and 30 Volume developer hinges on your desired lift. A 20 Volume developer provides a lift of 1-2 levels, which is great for subtle changes and gray coverage. For a more significant lift of 2-3 levels, opt for a 30 Volume developer.
20 volume is likely the most used developer in the salon. 20volume will give 1-2 levels of lift when used with permanent hair color. It is the standard developer for grey coverage, however, a stronger developer may be needed for more resistant hair types.
Hydrogen peroxide is a natural oxidant; we produce an enzyme called catalase that breaks down hydrogen peroxide turning it into water and oxygen. As catalase function decreases, the levels of hydrogen peroxide increase. High levels of hydrogen peroxide block the production of pigment, leading to gray hair.
No lift developer & 10 volume developer (3% peroxide)
Darkening of hair by 1 level.
Known for drawing out moisture from your hair and scalp, continuous exposure to salt water can make gray hair color lose any shine it may have. It also strips away the natural oils from your scalp while making it appear dull and lifeless.
That said, certain conditions may temporarily restore pigmentation. For example, if greying is caused by a vitamin deficiency, stress, or an underlying medical condition, addressing these issues may slow or even partially reverse greying. However, the complete reversal of naturally aged hair remains a challenge.
Context: Although the primary cause of premature hair graying (PHG) is considered to be genetic, certain environmental factors also play a role. Trace element deficiencies such as Vitamin B12, Vitamin D3, and calcium may also be associated with PHG.