Keep in mind that purple shampoo does not replace your regular shampoo and should only be used once or twice a week. Doss warns that there is such a thing as too much purple. “When you eliminate too much yellow, it visually ends up darker and a lot of people don't want it to look darker,” she says.
Don't overuse the purple shampoo, or you'll dry out your hair. Once a week should be more than enough.
If you have platinum, gray, or silver hair, you can leave the purple shampoo on for up to 30 minutes, depending on how brassy or discolored your hair is.
Everyone's hair is different, but we recommend using it once every week or two, then building it up from there until you find your own cadence. Just know that it is possible to overdo it—especially if you have high porosity hair—which results in a (temporary!) purple tinge.
Using a purple shampoo on grey hair can help to remove brassy yellow shades, leaving you with a flattering silver undertone.
If you leave it on for too long and don't like the result, don't panic. Simply wash your hair again with a clarifying shampoo and it should dull down the silver-tone from even the best purple shampoo for silver hair. Remember to always condition your hair after washing, especially when using a clarifying product.
Purple shampoos are the best shampoos for gray hair turning yellow, as purple is the opposite of yellow on the color wheel. A great purple option is BTWCo's purple shampoo & conditioner. It's very gentle, has a light fragrance, and really makes silver hair shine.
Purple shampoo neutralises brassiness but enhances blonde pigmentation. To maintain a silver shade, your shampoo requires a stronger colour neutralisation. Silver shampoo is formulated with deeper purple pigments to target yellow tones in a much stronger way.
As we mentioned, gray hair's lack of sebum can make it feel dry. To reduce further dryness, you'll want to wash it as infrequently as possible. "Washing every other day or three to four times a week can help with this," says Mazzei.
"Alternate your purple shampoo with a moisturizing shampoo," says Wiley. "Depending on how brassy your blonde hair is, you won't need to use the toning effects every wash, and it is important to add moisture and strengthen hair during the color process to keep hair healthy and strong."
Technically, purple shampoo turns grey hair a slightly darker color than before you used it. However, because of the way color passes through the eyes, you won't notice a darkening effect.
Purple shampoo is the best toner to use when it comes to gray hair because it neutralizes brassiness caused by heat styling, medications, product buildup, sun, salt, chlorine and environmental pollutants.
To combat silver hair's tendency to adopt a brassy tone, you can commit to using a shampoo or conditioner with purple or blue pigments at least twice a month. This is super effective in preserving your silver hair tone because of the types of molecules that purple shampoo contains.
Another option is to mix a bit of apple cider vinegar into a dollop of shampoo. This clears build up from environmental toxins and hair products. It also seals the hair cuticle, making your grays silky, shiny and frizz-free.
Since baking soda is a scrubbing agent, washing your hair with it can gradually strip the dye from your locks. Baking soda can lighten all hair colors, but it might take a few washes to get your hair to the desired color.
How is grey hair different from normal hair? The main difference you'll notice when you start to get grey hair is the texture, as oil glands start to produce less sebum. This causes strands to become coarse, dry and rough in texture, which make hair appear dull and lifeless.
Try a purple shampoo: If you have blonde hair to blend or dingier grays that need brightened, a purple toning shampoo can help. Duenas recommends Aloxxi's Violet Shampoo. “It has a very strong violet pigment that will help fight brassiness and make your gray the most beautiful it can be,” he says.
Your hair turns gray or white from a loss of melanin, a pigment-producing component that produces melanocyte cells. These make up your natural hair and skin color. The less melanin you have, the lighter your hair color. Gray hair has minimal melanin, while white has none.