March 16, 2020


Often even the best over the counter hair dye meets gray hair that is stubborn and hard to cover. Salon professionals refer to this type of hair as being resistant. The very act of hair losing its pigment can sometimes cause a texture change, making the grays wiry and coarse. This often results in less success when covering grays. 

How can you tell if your hair might be resistant to color? Slide your thumb and pointer finger down a single strand of your gray hair, if it feels rigid or glassy, chances are it is resistant to hair colorFollow these tips from the pros at Color&Co Personalized Haircolor by L’Oreal to get your best gray coverage at home. 

1. Use a color that is designed for maximum gray coverage. This could mean using a color formulated with ammonia. “Ammonia permits the cuticle (the outermost layer of the hair) to open up,” explains L’Oreal Haircolor Chemist Julie Blanc. This facilitates penetration of the hair dyes deep into the hair fiber where they develop into your final shade. If the dyes are unable to penetrate a resistant exterior, gray coverage will remain elusive. 

2. When applied to high percentages of gray, hair dye can often appear lighter than expected making it seem like you didn’t get adequate coverage. Try choosing a color one shade darker than your target to help provide better coverage. 

Pro Tip
Looking for a bespoke shade that will brighten your complexion while hiding the gray at the same time? Try a free video consultation with member from our Pro team.

3. Begin your application where your grays are the densest and often the most stubborn On many people, this is the hair at the temples and the front hairline. This will allow the color to process in those areas the longest. 

 4. Half way through your processing time, use your fingers or the color brush received in your first colorbox to apply any additional color left in your bottle. Smooth over the gray hair at the roots, especially at your partfront hairline and any other very gray areas. 

Pro Tip
Spreading the color too thin can result in poor coverage. If your wiry gray is popping away from your head and out of the color you have applied, re-apply more product. If the hair isn’t covered, it won’t get colored.

5. Don’t rinse prematurely. Allowing the color the time it needs to penetrate through the cuticle layer and fully process in the hair strand, is crucial for achieving gray coverage. If you want to make extra sure that you are giving the process the time it needs, allow the color to process for an additional 5-10 minutes longer than instructed. 


Covering your gray hair shouldn’t be a huge beast to tackle. These easy to follow tips mixed with a little diligence, you are on your way to your best results yet!