TripleBright oxidation defense purple shampoo
Breakthrough triple-action protection for brighter, longer-lasting blonde
The first triple-action purple shampoo to remove metals + minerals, neutralize existing brass, and defend against future brassiness for blonde like new, hair like new*.
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How is TripleBright different from traditional purple shampoos?
TripleBright is not a color-depositing purple shampoo. Traditional purple shampoos temporarily tone hair with basic color correction that can turn hair purple, but don’t target the underlying cause of brassiness: oxidation, such as metals + minerals in hard water.
TripleBright is a breakthrough triple-action formula that not only neutralizes existing brassiness without turning hair purple, but 1 wash removes up to 3 months of brass from hard water*, while also defending against future brass. The non-staining, easy-to-apply foam rinses with water and allows for targeted application.
*k18hair.com/disclaimers
Does TripleBright work on all hair types?
Yes, TripleBright works on all hair types and textures. It brightens all highlighted and lifted tones by defending against oxidative stress and reducing brass—delivering brighter, longer-lasting blonde for everyone.
will TripleBright turn my hair purple?
No. When used as directed, TripleBright purple shampoo’s precision violet technology expertly neutralizes brassiness without overtoning or staining.
Will TripleBright stain my hands or clothes?
No, TripleBright will not stain your hands or clothes. When used as directed, the non-staining and easy-to-apply foam format rinses with water.
How much TripleBright should I apply?
We recommend using 2-3 pumps of TripleBright purple shampoo per application. Apply to wet hair, distributing evenly and lathering from roots to ends.
1. Apply 2-3 pumps of foam shampoo to wet hair.
2. Distribute evenly, lathering from roots to ends.
3. Let sit for 1–3 minutes maximum, then rinse. Use up to once weekly.
4. Rinse.
See how K18 unlocks our community's expression
- Brassiness Correction
- Brightness
- Hair Texture
- Effectiveness
- Foam Formula
- Allison H.Verified BuyerRated 5 out of 5 stars6 days agoAmazing
This has made the single biggest difference in my hair since moving to a state with incredibly hard water. My hair gets sooo brassy and even the toner fades after just one wash but this stuff keeps me looking ashy. I wish it were a conditioner rather than a shampoo but it’s the closest in pigment to the OG mask from pravana (bring back the old formula! Or challenge to K28–make a mask!!! Shampoo is soooo drying. But the dye in the purple is perfect. Just make a conditioning mask instead!! Perfect purple
KUK18Hair UK6 days agoThank you so much for the love! 💙 We're thrilled to hear TripleBright is making such a huge difference in keeping your hair looking ashy and gorgeous, especially with hard water! ✨
- Yolanda R.Verified BuyerRated 4 out of 5 stars1 week agoSo far so good.
The first time I used it I probably didn't put enough or left it on the right amount of time. The second time I do see a difference. My hair doesn't look as brassy. Wish the bottle was a little bigger for the price but oh well.
KUK18Hair UK1 week agoThank you so much for the 4-star review, Yolanda! 💙 We're thrilled you're seeing results with TripleBright and that your hair is looking less brassy! ✨
- Tiffany A.Verified BuyerRated 5 out of 5 stars2 weeks agoBrightens blonde without drying it out
I really like the K18 TripleBright Purple Shampoo. It helped tone down brassiness and made my blonde look brighter and more refreshed. My hair still felt soft afterward and didn’t have the dry, stripped feeling I’ve had with some other purple shampoos. It lathers well, a little goes a long way, and I like that it helps maintain a cooler blonde tone between salon visits.
KUK18Hair UK2 weeks agoThank you so much for the love! 💙 We're thrilled to hear you're loving the TripleBright Purple Shampoo and that it's keeping your blonde bright and soft! ✨
- Christy J.Verified BuyerRated 5 out of 5 stars3 weeks agoTripleBright
I absolutely love this shampoo. Being a stylist I can honestly say this will have to be my favorite purple shampoo yet.
KUK18Hair UK3 weeks agoThank you so much for the love! 💙 We're thrilled to hear TripleBright is your favorite purple shampoo yet! Your support means everything to us. ✨
- Hazzel J.Verified BuyerRated 5 out of 5 stars1 month agoThe best purple shampoo I've tried!!!
This is honestly the best purple shampoo I’ve tried so far! After getting a balayage, I noticed that my bangs still looked a little too yellow and brassy in person, even though my hair had already been toned. The color just wasn’t complementing my skin tone the way I wanted it to. After using the K18 purple shampoo, the difference was amazing! It toned down the yellow and brassiness beautifully, and the color came out soooo perfect. 😍 I’m genuinely impressed with how much of a difference it made. I love K18 products so much...they have definitely become my go-to for my bleached hair!
KUK18Hair UK1 month agoWe're so thrilled you're loving TripleBright! 💕 So happy it's toning down the brassiness and giving you that perfect color you wanted! ✨