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leave-in molecular repair hair mask

What is the K18 leave-in molecular repair hair mask?

This is a leave-in treatment mask that works on the molecular level to reverse hair damage in just 4 minutes. The K18PEPTIDE™ is clinically proven to repair damage from bleach + color, chemical services, and heat* – with immediate and lasting results

What are the K18 mask ingredients?

Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20,sh-Oligopeptide-78 (K18PEPTIDE™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, To

How does the K18 mask work?

The K18 mask works as a treatment to reverse damage in 4 minutes. It’s powered by our biomimetic K18PEPTIDE™ to seamlessly fit in and reconnect broken polypeptide chains at the molecular level. As a result, disulfide bonds are also reconnected for re

Is the K18 mask a bond builder?

Nope. Instead of temporarily restoring just one type of bond, K18’s biomimetic peptide mimics the molecular makeup of keratin to reinforce strength along the length AND width of the hair fiber. Bond builders walked so we could run, ya know?

Why should I use the K18 mask?

You should use the K18 mask because we put our hair through a lot. If you’re someone who expresses themselves through their routine, or frequents the salon for bleach + color, chemical services, or heat*, K18 was engineered for you. If you just live

Will the K18 mask work for my hair?

The cool thing about the K18 mask is it’s powered by our K18PEPTIDE™, which works on a molecular level (where all hair is the same) to renew all hair types. It’s also compatible with all products, easily fitting into any routine.

Does the leave-in molecular repair mask need to be emulsified or activated?

There is no "activating" needed when it comes to K18. Rubbing the molecular repair hair mask in your palms before applying it to your hair helps with product distribution and application. If you are applying the mask onto damp and clean hair all it n

How do I use the K18 mask?

Here’s how to use the K18 mask:1. Shampoo, do not condition. 2. Towel-dry thoroughly. 3. Begin with 1 pump of 50ml mask and add more as needed. Maximum recommended usage is 3 pumps (15ml sized mask = Begin with 3 pumps and add more as needed. Maximum

How often do I use the K18 mask?

Start by using K18 after the first 4-6 washes. Then switch to maintenance mode for a boost of renewed strength, softness, smoothness, and bounce when needed. In the case of extreme damage (like some of the team peeps after they come back from the sal

How much K18 mask do I use?

Less is more, so don’t overdo your K18 mask application. This highly concentrated formula was made to use way less than your traditional hair mask or conditioner. Start with 1 ml (1 pump of the 50ml mask, 3 pumps of the 15ml mask) and massage the pro

Can I use the K18 mask every day?

Yes, it is safe to use K18 mask after every wash on clean, towel-dried hair. Since it is a progressive treatment, you will see better results with continued use.

Can I use my K18 mask on day 2 hair?

No do not use the K18 mask on day 2 hair, it is meant to work on clean, damp hair only.

Why skip conditioner?

Conditioner leaves a film that blocks our peptide from penetrating effectively. Once the 4-minute wait time is up, feel free to use a conditioner, a leave-in, or any type of product.

Does K18 mask replace conditioner?

Think of K18 mask as a highly concentrated treatment. It restores hair’s strength + elasticity at the innermost layers of hair. After shampooing, skip conditioner before applying the K18 mask so it has a clean canvas to penetrate hair at the molecula

Why do I use K18 mask on towel-dried hair?

Water from damp hair swells the cuticle (the outside layer of hair) to open the gates for our biomimetic peptide to enter and travel to the innermost layers of hair. If the gates aren’t open, the product will stay on the surface—giving you mostly sup

Can I mix the K18 mask with other styling products?

No, we recommend using the K18 mask alone so our biomimetic peptide can penetrate hair without anything in the way. After the 4-minute wait time, you can add any styling products you want.

Can I apply styling products or conditioner before the mask's 4-minute wait time is up?

Nope, we like to leave a clear path for the K18PEPTIDE™ to penetrate without disruption from other products. After 4 minutes, you’re free to do whatever you’d like to your hair.

Will the K18 mask work on hair with a lot of buildup?

Any type of coating whether it’s product buildup, sebum/oil buildup, or even mineral + metal buildup from hard water can block our biomimetic peptide from getting where it needs to go. We recommend PEPTIDE PREP™ detox shampoo prior to K18 mask applic

Why does the K18 mask have to sit for 4 minutes?

It sits for 4 minutes to allow the K18PEPTIDE™ to reach the innermost layers of your hair. After the 4-minute wait time, you get strength, softness, smoothness, and bounce that lasts past your next wash.

If the K18 mask doesn’t rinse out, why do I have to keep using it?

We recommend you keep using the K18 mask because damage is ongoing, so your repair should be ongoing too. Our molecular repair technology delivers progressive results that rebuild hair strength each time you use it. That’s why we say to use the K18 m

I'm not seeing results, or my hair feels dry, frizzy, and crunchy after using K18. What should I do?

There might be a coating of product, sebum, oil, or metal + mineral buildup preventing our biomimetic peptide from penetrating your hair. Try using the K18 detox shampoo to clear buildup and make sure to skip conditioner before applying the K18 mask.

Will the K18 mask weigh my hair down?

Nope! Since our K18PEPTIDE™ works at the molecular level in the innermost layer of your hair, product won’t be left sitting on top like traditional styling products. If your hair feels weighed down, try clarifying buildup first and using less of the

Is K18 considered a protein?

No, the K18 mask is not a protein treatment. Our biomimetic peptide naturally mimics the amino acid sequences in keratin to rebuild bonds broken by bleach + color, chemical services, and heat* damage. If you are experiencing dry, brittle hair, use PE

Why is there alcohol in the formula?

We like to keep our formulas minimal, only using the exact amount of ingredients needed to get the peptide where it needs to go. Here the alcohol serves as an agent to optimize the hair environment for the K18 mask to work on a deeper level. Our uniq

Why should I use the K18 mask?

You should use the K18 mask because we put our hair through a lot. If you’re someone who expresses themselves through their routine, or frequents the salon for bleach + color, chemical services, or heat, K18 was engineered for you. If you just live y

What if I have a wheat allergy?

The K18 mask does contain a small amount of wheat protein. Please consult your doctor before using K18 mask if you have a wheat allergy, and conduct a patch test upon approval to test for any allergic reactions.

Is K18 safe to use during pregnancy?

Although K18 is free of sulfates, parabens, phthalates, silicones, artificial colors, sodium chloride, and is vegan and cruelty-free, we recommend you consult your doctor before using K18 during pregnancy or if you have concerns about allergies. We a

When should I expect to see results?

Most see results after 2-3 uses. The more damaged the hair, the more dramatic the results so it may vary depending on your hair type and level of damage.

Does the K18 mask offer UV or heat protection?

No, the K18 mask does not protect from heat or UV rays.

What does the K18 mask smell like?

A light floral scent features notes of jasmine and peony.