Answers to your most asked purple shampoo questions for brighter, longer-lasting blonde.
Brassy tones have a way of showing up no matter how hard you try—but caring for blonde, silver, or highlighted hair doesn’t have to be confusing. That’s why we created TripleBright oxidation defense purple shampoo: a one-step solution to remove, neutralize + defend against brass. Like all of our innovations, this breakthrough triple-action blonde protection works differently from the rest. So naturally, questions came up from our community.
After scouring the comment section, we’re breaking down the most common questions coming up, so you can get the most out of every TripleBright wash.
will TripleBright dry out my hair?
No, TripleBright will not dry out your hair if you follow the instructions on the bottle: apply 2-3 pumps and leave it on for 1-3 minutes, then rinse. You may feel a “squeaky-clean” effect from the ionic detox that’s thoroughly removing metals and minerals from your hair. That’s a good sign your hair is free of brass-causing buildup.
To add moisture and slip to your hair, use damage shield protective conditioner in the shower, or leave-in molecular repair hair mask and HeatBounce conditioning heat protectant out of the shower.
can I use TripleBright on bleached or natural gray hair?
Totally! TripleBright will brighten and remove yellow tones from chemically bleached or natural gray hair—without staining.
what about red hair?
You can use TripleBright if you have chemically bleached red hair—we have not tested it on natural red hair yet.
does TripleBright work with extensions?
Yes. Apply TripleBright from mid-lengths to ends, avoiding the bond area directly. Before you apply it to the whole extension, test TripleBright on a small area first to see its effect.
how often can I use TripleBright?
You can use TripleBright weekly. If you have a lightening appointment planned, use it the week before to remove brass-causing buildup for an even brighter, longer-lasting color.
do I have to shampoo with a different shampoo first?
No, TripleBright detoxes your hair while neutralizing and defending against future brass. That's one less step in your routine!
can I use TripleBright and K18 detox shampoo together?
Yes, but you probably don't need to use both shampoos—TripleBright alone removes up to 3 months of brass from hard water in just 1 wash*. Using both the clarifying power of K18 detox shampoo, plus the ionic detox in TripleBright, may leave your hair feeling overly dry.
If you can't put down your K18 detox shampoo (we don't blame you), try using K18 detox shampoo first, rinse, then apply TripleBright, and rinse again.
will TripleBright block the K18PEPTIDE™ from working?
No. TripleBright removes metals and minerals from your hair to clear the path for the K18PEPTIDE™, helping it repair deeper for better results. Here's how to use this duo weekly for your brightest, healthiest blonde:
step 1: Shampoo with TripleBright. Let sit 1-3 minutes, rinse out. Skip conditioner, towel dry.
step 2: Apply mask to reverse damage from bleach and leave hair soft, strong, and bouncy from the inside out. Wait 4 minutes, then style as usual.
what conditioner can I use with TripleBright?
You can use any conditioner after rinsing out TripleBright! The damage shield protective conditioner is our favorite to protect your blonde against damage (like brass-causing oxidation) for up to 3 days*.
Keeping your lifted + highlighted tones brass-free doesn’t have to be complicated. With the right purple shampoo—and the right routine—your bright blonde isn’t going anywhere.
*k18hair.com/disclaimers
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