What Is K18, Really?
K18 is a leave-in molecular repair mask that works differently to a normal conditioning treatment. Instead of just coating the hair, it's designed to reconnect broken keratin chains inside the hair - which is why it's become the go-to for anyone who's coloured, bleached, or heat-styled their hair into damage. You don't need bleached hair to use it, but that's where people notice the biggest difference.
Step-by-Step: How to Apply K18
After shampooing (no conditioner needed first), towel-dry your hair so it's damp, not dripping. Apply the K18 mask evenly through mid-lengths and ends - a little goes a long way, so start small and add more if needed. Leave it in for 4 minutes. Don'trinse it out - style as normal once the time's up. That's genuinely the whole process.
How Often Should You Use It?
For hair that's noticeably damaged (recently bleached, heavily coloured, or heat-styled daily), we recommend using it every wash for the first 4-6 weeks, then dialling back to once or twice a week for maintenance. If your hair's in reasonably goodcondition, once a week is plenty to keep it strong.
Can You Use K18 With Other Treatments?
Yes - K18 plays well with other treatments and doesn't need to replace your regular conditioner. Most of our clients use it as an extra step after shampooing, then still use their normal conditioner or leave-in as usual.
Frequently Asked Questions
Does K18 replace conditioner?
No, you can keep using your regular conditioner alongside it. K18 is an additional repair step, not a replacement.
Is K18 safe for coloured or bleached hair?
Yes - it's actually most popular with clients who've had colour or bleach services, since that's when hair needs the most structural repair.
How long does one tube of K18 last?
With the small-amount-per-use approach, most clients get 2-3 months of regular use from one tube, depending on hair length and how often you apply it.
Can I use K18 at home or only in-salon?
Both - we use it as an in-salon treatment for an extra boost, but it's specifically designed to also be used at home between salon visits.