You know what's FUN-damental? When your product works. We'll be breaking down key info + recommendations to help you get the most out of K18.
A few months ago, we launched 2 color-safe shampoos so you guys could get your cleanest hair ever—and the best results from the K18 leave-in molecular repair hair mask.
We’ve talked a lot about the science behind clean hair and why it’s essential to your overall hair health that your scalp + hair are truly clean and balanced. But some of you are still wondering things like: “Hey K18, why are there two shampoos?” “Do I need to use one right after the other?” “What shampoo works for my hair?”

Today we’re going to break down the scientific “magic” of our 2 shampoos and teach you everything you need to know about picking the one that’s right for you—but if you fall in love with both, we won’t judge.
QUESTION: Do I need both?
As you may have noticed there are all kinds of shampoos in the hair aisle. Ones that promise to do things like volumize or straighten. The truth? Shampoos can’t really style because they are washed out of hair so quickly, but they can clean when formulated effectively. So we decided to approach our shampoo lineup in a different way: focus on health and cleansing without stripping.
Our shampoos offer 2 levels of cleaning power. Both are pH-balanced so as not to disturb the hair or scalp and infused with the K18PEPTIDE™ to nourish strands and mitigate protein loss that can come from washing.
The difference lies in the cleaning power + the kind of buildup each tackles. Let’s break it down.

QUESTION: Do I need to use one after the other?
You don’t have to use both shampoos. If you are a heavy product user but only wash your hair once a week, you might always be groovin’ using the detox shampoo. If you have greasier hair you wash more frequently but need something more gentle, DAMAGE SHIELD pH protective shampoo may be your perfect fit. For those showers where you need to double down and go for 2 shampoos? Try using the detox to get the cleanest base and then going in with the gentler pH for the second shampoo.
But as far as the shampoo “rules” go, we say you ‘poo you.
See ya soon for more FUNdamentals.