This might be the case for some people, but there's also the risk of more porous, damaged sections of the hair (the ends) absorbing more pigment than the newer hair towards the root. So, to avoid a patchy purple effect, use the Blonde Assure Color Toning Purple Shampoo as advised: on wet hair.
There's an internet rumour that dry hair absorbs purple shampoo better, resulting in enhanced toning. However, while dry hair is more porous, it can't absorb the shampoo evenly. In short, applying purple shampoo to dry tresses will lead to a patchy hair nightmare.
Purple shampoo should be applied in the shower or during a hair wash. While your hair is wet, apply the shampoo and lather it onto your hair. The amount of shampoo that you use will vary depending on your choice of product and how brassy your hair is looking.
In short: No, you shouldn't put purple shampoo on dry hair. While it's true that dry hair will absorb more pigment, it's also uneven in its absorption. For most if not all of us—blonde or not—the ends tend to be drier and more porous than the rest of our hair.
Zoe's answer: Leaving purple shampoo in your hair for longer than the recommended time is not always a good idea. The longer you leave it, the more pigments will be deposited on your hair and they could even stain it permanently.
It's also important to follow the directions on your purple shampoo's packaging: Don't leave it on your hair too long (usually no more than five minutes). If used incorrectly, "purple shampoo can stain your hair for weeks or even months,” Maine says.
It's important to note that the pigment in purple shampoo isn't a lightener or hair dye but a gentle toner that works overtime. So it can't darken your hair or make it any lighter. For this reason, if your hair tone is too dark, it won't make it any brighter.
The brightening effect caused by purple shampoo is actually illusionary. It happens because of an effect called bluing. While your hair might be very slightly darker than before, it will not look darker, because of the ways our eyes perceive color.
DON'T use purple shampoo on very dry hair
It's important to get the hair into a healthy condition before drenching it in purple shampoo to make it less porous.
Your first time, leave the formula on for the lowest amount of time the bottle recommends. Finish With a Rich Conditioner: Purple shampoos can be drying, so be sure to rinse thoroughly and follow up with a luxurious, moisturizing conditioner or hair mask.
Our purple shampoo is designed to be used as a daily shampoo until your desired color is achieved. Once you've reached your perfect blonde color, alternate between purple shampoo and your regular shampoo.
Is purple shampoo a toner? Any product that dispenses pigment to adjust hair tone can be considered a toner, and that includes purple shampoo. Its pigments work to neutralize brass.
Purple shampoo is for already bleached hair, so if you're hoping to lighten brown hair with purple shampoo, you'll be disappointed. This is all down to the fact that purple shampoo isn't lightening. Instead, it brightens blondes by canceling out yellow tones, which just happen to be opposite purple on the color wheel.
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.
DOES PURPLE SHAMPOO DAMAGE HAIR? The cool violet pigment in purple shampoo won't damage hair, but if you leave it on strands too long, those purple pigments will take their job a little too far and could turn tresses a purple-violet colour.
If your hair is actually orangey, it needs to either be colored professionally, or lifted out with lightener. Yellow hair can be helped with purple shampoo, by sometimes even that isn't enough. Hard water and other outside elements cause build up on the hair that also needs to be lifted out.
No two purple shampoos are made the same. Some are almost too potent, risking a purplish tinge after just a minute of sitting on locks, taking hair extra-ashy. Others may be too weak, meaning they need 10 minutes or more to make a noticeable difference to brassy tones if they manage to do anything at all.
Let the shampoo sit on your hair for 2-3 minutes if you're a natural blonde or 15 minutes for brassy color-treated hair. For gray or platinum hair, wait 30 minutes. Rinse out the shampoo thoroughly with cool water and follow with your favorite conditioner. Use purple shampoo once a week to maintain your hair color.
When To Use Purple Shampoo After Bleaching? Avoid washing your mane for the first 48 to 72 hours after bleaching it. This is to give your hair enough time to seal in its new color. If you waited 72 hours before washing your hair after it was bleached, you could use the purple shampoo the next time you shower.
It will also lighten any natural hair, causing it to turn orange or yellow and giving highlighted hair a solid look. Too much purple tone in these products can cause the hair to look dull and over toned.
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.
Purple shampoo is meant to only be used weekly or when your hair is looking brassy — not every day. Generally, you'll want to incorporate it into your hair care routine one to three times a week in place of your usual shampoo for color-treated hair.
Blue shampoos are designed to counteract orange tones in brunette hair, while purple shampoos are used to banish brass in blonde hair. If you make the leap from brunette to blonde hair, make sure to switch to a purple shampoo to counteract the yellow tones that often appear in color-treated blonde hair.
Just remember that if you use too much purple shampoo and remove too much of the yellow tones in your blonde, you could end up with a shade darker than what you want.