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There is no quick fix for anything, or so we are told. Getting the healthy hair you desire can feel like it’s taking forever — trust us, we know the struggle! But maybe that’s because not enough people have tried the K18 miracle leave-in Molecular Repair hair treatment.

We’ve tried and tested all the hair treatments that come on the market claiming to be better than the last one so when K18 popped up on our radar we thought, here we go again! Another hair mask we will try once and forget about.

But after only one use of K18 miracle leave-in molecular repair hair mask we were jaws-on-the-ground shocked! No at-home or in-salon hair treatment transformed our hair the way K18 does.

People kept asking what we did to our hair to make it look so terrific and then there were so many follow-up questions about K18, we decided to tell you everything you need to know.

What is K18?

K18 is not just another haircare brand — it’s a biotech breakthrough. Using patented biomimetic technology, K18 is the only brand in the world that works at the molecular level to reverse hair damage, not just mask it.

Whether your hair’s been bleached, heat-styled, or chemically treated, K18 ’s professional-grade formulas restore strength, softness, and elasticity from the inside out — so you can keep experimenting with your hair, without the damage.

How does K18 work?

K18 uses technology that is 100% unique to them. Their patented oligopeptide, K18Peptide™, delivers essential amino acids into the inner structure of the hair to rebuild your hair from the inside out.

The unique amino acids chain not only replaces the amino acids lost due to damage but they also regenerate the disulfide bonds that were broken, restoring ultimate strength, resilience, and softness.

How do I use the K18 Leave-in Molecular Repair Hair Mask?

It couldn’t be easier. Wash your hair with shampoo — no need for conditioner — then after you towel dry your hair, add 1-2 pumps of product depending on the texture and length of your hair.

Leave it in your hair for 4 minutes. Do not rinse! Then style your hair as you normally would.

Why skip the conditioner?

Conditioner formulas use silicones and conditioning agents that form heavy coatings on hair that prevent the K18 formula from penetrating the broken disulfide bonds inside the hair.

After K18 has been in the hair for 4 minutes you can use whatever products you may need. Even though K18‘s primary function is to restore your hair’s strength and elasticity by repairing the keratin chains damaged from bleaching, coloring, and thermal heat, it also detangles and conditions your hair so there is no need for a conditioner.

What hair types does K18 work on?

Because hair is scientifically the same at a molecular level, this works on every hair type. Long, short, curly, straight, frizzy, thick, thin, dyed, non-dyed, bleached, natural.

Whether you’re switching up and styling your hair every day or you go au natural with it, all our hairs retain damage. Our hair gets damaged by color, heat, sun, products, water, and environmental aggressors. K18 works to restore your hair’s health, reversing any damage, so everyone can benefit from K18.

How often should I use the K18 treatment?

When you start, it’s advised to use K18 consecutively for 6 washes and then every 3-4 washes to maintain your healthiest hair possible.

How much does K18 Leave-in Molecular Repair Hair Mask Cost?

$75 for 50mL may seem a little steep — but K18‘s formula has over a decade of research behind it and is ultra-concentrated. One bottle delivers up to 50 doses, so just a small amount goes a long way. And with the results K18 delivers, it might just be the only hair product you’ll need.

Tired of wasting money on products that overpromise and underdeliver? It’s time to upgrade to the K18 Leave-in Molecular Repair Hair Mask — the only treatment that actually repairs damaged hair at the molecular level. It will repair your hair and maintain its strength and elasticity even when you continue to style it and do whatever you feel like with it.

Never have to worry about damaging your hair again with K18 in your routine!