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K18 Leave-In Molecular Repair Mask 15ml
NZD $55.90
or 6 weekly interest-free payments from NZD $9.31 with 
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This leave-in mask heals and strengthens hair with lightweight moisturizing benefits to detangle and keep hair smooth and soft, without weighing it down. Please see dosage chart for exact usage. For best results, use for the first 4-6 consecutive washes following a service, and then every 3-4 washes as needed to maintain hair strength.
Use
Description
Use: Shampoo, do not condition. Towel dry thoroughly.
Begin with 1 pump of K18 Mask and add more as needed depending on the length, thickness, and condition. Work evenly into hair, one pump at a time, from ends to roots.
Let sit for 4 minutes to activate.
Do NOT rinse out. Style as usual.
Best for: Damaged hair.
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Real Professional Care & Advice
Anonymous (verified owner) –
The product itself is great, very little amount of this product goes a long way. It leaves your hair very soft once it dries. I was more surprised with the shipping. I love how this was delivered so quickly. 🙂
Mandy (verified owner) –
This is the 3rd time I have brought K18, it is that incredible!!! It has helped my platinum blonde hair so much!!! Really fast shipping from Synergy too!!!
Catriona (verified owner) –
Seems to work well, and the results are instant unlike other products.
Kirsten Baker (verified owner) –
K18 makes my hair feel new and tangle free.
Rebecca (verified owner) –
I’ve been using this product for months now and it’s the only thing keeping my icy blonde from not feeling like straw
Sana Anderson (verified owner) –
Amazing product. This is the third time I’ve ordered And my hair has changed dramatically. Plus synergy is always super fast shipping! X
Mandy (verified owner) –
Tracy (verified owner) –
I have naturally curly, dry, frizzy hair. After using K18 once my hair feels so soft, healthy and more manageable. I’d say there’s a little less frizz. Looking forward to seeing the results after more use.
Natalie (verified owner) –
Pricey but have definitely noticed a change in hair texture I’ll keep using 🙂
Anonymous (verified owner) –
Great product
Megan (verified owner) –
My hair feels softer, split ends are less visible, and frizziness is diminished. I’ve noticed a bigger change with k18 than Olaplex. Couldn’t recommend more !!
Anita K. (verified owner) –
Excellent service. Fast & easy. Great product! Will definately buy again! Thank you!
Brittany (verified owner) –
My hair felt amazing after using this once
Anonymous (verified owner) –
Excellent product, excellent service
Anonymous (verified owner) –
super fast delivery. thank you
Dennise Titoko (verified owner) –
I so love it I recommend this product for any wavy hair
Vanessa Parker (verified owner) –
Definitely improved hairs texture after first use. Allowed me to tone with a 20 developer on bleach damaged hair with no further damage. A little goes a long way. Have used Olaplex which is also fabulous but takes longer or more work.
Deirdre (verified owner) –
Hair feels lovely and soft
Alex (verified owner) –
After a few uses I’ve definitely noticed my hair is softer, will have to continue to use to see if it’s worth the money but so far I’m happy.
Kelly (verified owner) –
Ange R. (verified owner) –
Good product, Really quick delivery!
Celia (verified owner) –
Makes my coloured dry hair soft on the edges. A bit pricey but can last for a month or so ..
Daphne W. (verified owner) –
This stuff is jaw dropping amazing!!!!!!!! Fast delivery too 😉
Irene (verified owner) –
Love love this product! Also read reviews on how quick Synergy shipping was and it was here the next day. Extremely impressed
Anonymous (verified owner) –
I have very fine, colour treated hair and after a month of consistent use i have definitely found my hair feeling softer and more manageable, and less prone to breakage. Lasts a long time, and a little bit does go quite a long way. Definitely a product I would buy again.
georgia (verified owner) –
Only used it a few times, but looking good so far
Charlie (verified owner) –
I have used this product twice now and it has had an ok effect. I then tried the Wella SP Luxeoil Keratin Restore Mask and that has made a huge impact in just one use.
Natalie (verified owner) –
So good. My hair has dry blonde ends and this product has smoothed them without them being overly coated like some conditioners with tons of silicon can do. Very natural. Hair looks healthy. Will repurchase.
Anonymous (verified owner) –
Alex W. (verified owner) –
Amazing product has helped with the health of my hair so much would repurchase
Kylie (verified owner) –
Expensive but worth it, left my hair soft and hydrated, and it smells good!
Renee –
Forget Olaplex this stuff is INCREDIBLE. I have fine curly hair, which has been bleached a few times over the past couple of years and this product makes it feel like silk. It makes my curls so nice and defined and the glossiness of my hair improved drastically after the first use!!! Highly recommend, a staple in my hair care!
Aston (verified owner) –
Bought on a whim after hearing good things about this product. Made my hair feel so nice and soft afterwards and it looks so much healthier and feels 100 times better now. Definitely gonna repurchase when I run out!
Aimee (verified owner) –
My hair feels so soft after just one use. It was extremely dry before this
Jordan M. (verified owner) –
Leave hair feeling super smooth! Definitely worth it.
Anonymous (verified owner) –
Adean Groepies (verified owner) –
Instant hairshine , softer curls ,easily managed than before
Katherine (verified owner) –
Jo L. (verified owner) –
Makes ur hair feel like silk
Lorna T. (verified owner) –
K18 is a brilliant product.I have used it for 2 months.It makes my hair smooth and natural looking.I have coloured my hair regularly and find that K18 keeps my hair so well styled I don’t have to use straighting irons between washes.
Micaela (verified owner) –
Highly recommend! Great for my blonde hair. Feels amazing and so easy to apply.
Chrissy McClellan (verified owner) –
Sarah B. (verified owner) –
Highly recommend. This stuff is a miracle cure for broken brittle damaged hair. Honestly saved my bleached hair.
Fast shipping and great customer service
Emily (verified owner) –
Love love this mask! I do wish it was in a bigger bottle but aside from that is a great product
Bethany (verified owner) –
It’s lasted me longer than I expected
Works extremely well but cannot justify the price when it comes to purchasing again
Lorna T. (verified owner) –
k18 hair treatment is the Best, 10/10 from me! I have only to apply it to damp hair , leave 4 minutes and style.
Usually style daily with flat irons but once I have blow waved, straightened, I am good for a week.
Great product from a great company.
Fast , efficient and friendly.
Jeni K. (verified owner) –
Awesome to strengthen my fine hair
Emily (verified owner) –
Superstar product – this has kept my bleached hair so soft and healthy. Highly recommend for hair new to bleaching – was a bit worried about running out too quickly but you only need 1 – ½ pumps and it provides great coverage.
KerI (verified owner) –
Used it twice and hair seems softer and less frizzy
Ashleigh (verified owner) –
Absolutely love this stuff. Liquid gold, makes my hair so smooth and has really helped all the damage from using heating tools!