I’ve been natural gray for more than eight years now, and I’ve tried a lot of products on my hair. Some worked beautifully. Some didn’t.
All those experiments have taught me one thing about caring for my silver hair: choose products based on what your hair actually needs.
I’ve never wanted a complicated gray hair routine. I’d rather understand why something is happening to my hair and then find the simplest way to deal with it.
Purple shampoo is a good example of this.
If you have gray or silver hair, you’ve probably heard that purple shampoo is something you should be using. But after caring for my own silver hair for years, I’ve learned that purple shampoo isn’t something you automatically need just because your hair is gray.
So let’s talk about when you don’t actually need purple shampoo, when it can help, and what you might need instead.
Here we go!
1. Women Transitioning to Gray Hair:
If you’re growing out your natural gray, don’t assume that every warm-looking strand needs purple shampoo.
Whether you started with brunette or blonde hair, your old color can become warmer as it fades. The important question is what color the warmth actually is.
If your new silver or white hair has a yellow cast, purple shampoo may help neutralize it. But if your old brunette or blonde color has faded into orange or copper, purple shampoo isn’t the right toner for that warmth. Purple is used primarily to counter yellow, while blue is generally used to counter orange.
That’s why don’t blindly use purple shampoo simply because you’re going gray. Choose it based on the unwanted tone you’re actually trying to neutralize.
2. Your Gray Hair Has Yellowed from Frequent Heat Styling:
If you heat-style your gray or silver hair often, you may start to notice a yellow or golden cast developing over time. Repeated exposure to high heat can gradually cause this kind of discoloration. Unfortunately, this kind of heat-induced discoloration may not be completely reversible.
Purple shampoo can camouflage the yellow by neutralizing some of the unwanted warmth, but it doesn’t always work. The yellow may be too pronounced or resistant to toning, and using too much purple shampoo can leave hair looking lavender, blue-gray or dull.
The most effective way to get rid of the damaged hair is, of course, to cut it off. But I know not everyone wants to chop off their length just because their hair has been damaged by heat.
So if you want to keep your length, you can camouflage the discoloured ends with a semi-permanent hair colour while you grow them out.
You can then trim the damaged portions gradually over time rather than cutting everything off at once.
I’ve shared how to use semi-permanent hair colours on natural gray hair in this post:
👉 How to Use Vibrant Hair Colours on Natural Gray Hair
Your Hair is Very Porous:
If your gray hair is dry, damaged, and porous, you don’t necessarily have to avoid purple shampoo, but you shouldn’t use it frequently.
Only reach for it when you can actually see unwanted yellow tones. And because porous hair can grab purple pigment very quickly, use it for a shorter processing time than you normally would.
You can even make purple shampoo gentler by diluting it with your regular shampoo or conditioner. This reduces the concentration of purple pigment and gives you more control over how much your hair absorbs.
Another option is to skip the purple shampoo altogether and use a purple hair mask. This can give you the dual benefit of toning and conditioning, which can be particularly useful when your hair is dry and porous.
But don’t assume a hair mask can’t over-pigment your hair. Some purple masks are extremely pigmented. Start with a shorter processing time and dilute it with a regular conditioner if you find that your hair grabs the color too quickly.
You can also use purple toning drops mixed into your regular shampoo or conditioner. I like this option when you want more control over the amount of purple pigment your hair is getting. You can simply adjust the number of drops depending on how much toning you need.
Your Hair Has Product Buildup:
When gray hair looks dull, heavy or even a little yellowish, it’s easy to think you need purple shampoo. But before you reach for it, take a closer look. The problem may not be the color at all but it could simply be product buildup.
Purple shampoo may cleanse some surface buildup simply because it is a shampoo, but it isn’t designed to properly remove buildup. A clarifying shampoo helps remove the accumulation of styling products, oils and other residues on gray hair.
And then there’s hard water. If you live in an area with hard water, minerals like calcium, magnesium and iron can build up on your hair over time, making hair look dull, yellowish or discoloured. This is where a chelating shampoo can help. It’s made to remove those mineral deposits.
👉 See my recommended clarifying and chelating shampoos for gray hair
You’ve Just Started Growing Out Your Gray Hair:
When you first start growing out your natural silver, you might be tempted to reach for purple shampoo pretty quickly. After all, we’re constantly told that purple shampoo keeps gray hair bright, so it’s easy to assume you should start using it as soon as those silver roots appear.
You don’t need to!
As your roots grow out, you may eventually notice that your old color is starting to look brassy, or that your new silver is picking up a little yellow. That’s when purple shampoo/blue shampoo can actually be useful.
So don’t feel like you need to start using it a few weeks into your grow-out. Wait until you actually notice yellowing in your silver hair before adding it to your routine.
The one exception would be gray blending. If you’ve had your hair professionally blended with gray or silver tones, your colorist may ask you to use a toning shampoo to keep the color looking fresh. If that’s the case, follow the routine they’ve recommended for your hair.
Your Silver Hair Isn’t Yellow:
If your silver hair already looks bright and cool, you may not need purple shampoo at all.
Purple shampoo is meant to take care of yellow tones. If there’s no yellow in your hair, using it too often can leave your silver looking dull or even slightly lavender. And if you actually like that lilac tint, there’s nothing wrong with it. It’s simply a matter of the look you prefer.
I actually learned this the hard way. I started using a purple toning shampoo bar every time I washed my hair, thinking it would keep my silver looking fresh and bright. But after just two weeks, my hair started looking dull and almost greyish-blue.
That’s when I realised I was simply using too much purple on hair that didn’t really need it.
And sometimes, what looks like yellowing is simply the natural warmth in some of your silver strands. Not every warm-looking strand needs to be toned.
A little tip: Look at the strand closely. If the warmth is mostly on the ends or tips, rather than running through the whole strand, it may simply be the natural warmth of your hair.
Instead of buying a product because someone says gray hair needs it, look at your own hair first. What are you actually seeing?
Once you start paying attention to your hair, choosing products becomes much easier. You can buy something because your hair actually needs it and not just because it’s supposed to be good for gray hair. And this way it can save you a lot of money too.
Did you find this post helpful? If you did, I’d love to know what you learned about your own silver hair. Leave me a comment and tell me: Do you use purple shampoo, and has it actually worked for you?