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SURGEON GENERAL'S WARNING: Smoking Causes Lung Cancer, Heart Disease, Emphysema, And May Complicate Pregnancy.

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Limited time! Get a $50 statement credit when you open an account & use it to make $30 in eligible Sam’s Club purchases within 30 days.¹

¹Offer subject to credit approval. During the offer period, new accounts that qualify will earn a $50 statement credit instead of a $30 statement credit that you may see otherwise advertised. To qualify, you must (i) apply and be approved for a Sam’s Club credit card account between June 24, 2026—July 7, 2026 and (ii) use your new account to make Sam’s Club purchases totaling $30 or more (excluding cash advances, gift card sales, alcohol, tobacco and pharmacy purchases) within 30 days of date of account opening. When you open an account online or with your mobile device, purchases cannot be made at in-club registers until the physical card is received. Your physical card should arrive in 7–10 business days from date of account opening. A $50 credit will post to the account within 90 days after the qualifying purchases are made. Offer is valid for newly opened accounts only and each account is eligible for only one $50 offer, in lieu of, and not in addition to, any advertised $30 offer.

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K18 Leave-in Molecular Repair Hair Mask, 1.7 fl. oz.

<p>In just four minutes, the K18 Leave-in Molecular Repair Hair Mask reverses hair damage on a molecular level. K18 PEPTIDE has been proven to repair bleach and color damage, as well as chemical services and heat. It provides immediate and lasting results that restore hair strength, softness, smoothness, and bounce.</p> <h3>Renews Hair Strength and Elasticity</h3> <p>This hair mask is designed to provide smooth, bouncy hair by renewing its core strength and elasticity at the innermost layer. With its unique K18 PEPTIDE formula, this hair mask not only repairs bleach and color damage but also combats the effects of chemical services and heat exposure.</p> <h3>Hair Mask Starts Repairing Your Hair Immediately</h3> <p>The K18 Leave-in Molecular Repair Hair Mask starts repairing your hair immediately and lasts beyond your next wash, ensuring ongoing reparative results.</p> <h3>Suitable for All Hair Types</h3> <p>This hair mask is suitable for all hair types, as it works on a molecular level where all hair is the same. Whether you have straight, wavy, curly, or coily hair, the K18 Leave-in Molecular Repair Hair Mask helps to improve hair quality and texture.</p> <p><strong>Disclaimer:</strong> <em>Sam’s Club is committed to offering quality products and services at an exceptional value. To serve this goal, these products were not purchased directly from the manufacturer or its authorized distributor but from a third-party dealer with strict controls to verify authenticity and quality. Some manufacturers limit or exclude their warranties on these products. However, these items remain fully covered by Sam’s Club’s 100% Merchandise Satisfaction Guarantee. If you are not satisfied with your purchase for any reason, return your item and we'll replace it or provide a refund.</em></p>

Brand

<ul>  <li>Leave-in hair treatment mask</li>  <li>Rebuilds hair from the inside out</li>  <li>Proven to reverse hair damage in 4 minutes</li>  <li>Leave-in formula provides lasting results</li> </ul>

Specifications

title_shipToHome_not_available

<ul>
<li>Leave-in hair treatment mask
<li>Rebuilds hair from the inside out
<li>Proven to reverse hair damage in 4 minutes
<li>Leave-in formula provides lasting results
</li>
</ul>

This is the best product I have ever bought to give my hair a sleekness and softness. The frizz and dry hair is gone. I’ve bought the shampoo and conditioner. Can’t wait to try it when it arrives. I’m impressed by this product. It really does what it states it will do.

Wow product

I have used this for a few weeks.  My hair does seem to be softer at the ends. (Color treated hair) I will continue to use it. 
Sam's price was less, as well.

Hair needed help.

Very good project, you use in place of conditioner when you get out of the shower. Use about three times and your dry, damaged hair will feel like new. They recommend to use 6 times to finish the course. Really nice product. Will buy again.

Nice stuff

I have a lot of hair masks and treatments but nothing compares to this mask! Left your hai so soft and feels a lot healtier than before...and it is not greasy at all!!! Its pricey but it works!

Really good!

After I fried my hair by dying it myself (then trying to correct the messed up dye job several times, stripping the hair completely), I had to have a hairdresser correct it.  She begged me to cut off my long hair due to the damage.  After I came across the recommendation for K18, I tried it, and right after the first application, my hair was already much silkier.  After 4 applications, as promised, my hair was nearly as healthy as it was before the chemical stripping disaster.  I, then, bought K18 for my daughter who has naturally wiry hair.  She was skeptical and didn't try it right away.  Eventually, she ran out of her own conditioner and turned to her bottle of K18. She's been hooked on it ever since.  This product is as good as they say it is, and despite its high cost (it is VERY pricey), it's worth its weight in gold if you have damaged hair.

My holy grail of hair repair

This stuff is the best to use on bleached hair. I bought so many of these bc the price at Sam’s was cheaper. I hope they continue to sell this size!

K18 is the best

Was so excited to find the K18 at Sam's Club for an amazing price. This is my 3rd time purchasing K18 for my hair. Definitely recommend.

Great product at a GREAT Price!

Love K18@Sam's

Makes my hair less frizzy and very shinny

Love this product

Not as moisturizing as I'd hoped. I'm in my 50's, and my hair is dry, coarse, curly, thinning, chemically treated, but also needs a cut badly. I returned it.

Not the damaged hair cure I was hoping for.

I believe this to be fake merchandise. The mask has a strong alcohol smell, it is runny and doesn’t have the normal pearlescent color and texture of real K18.  Im returning it.

K18 Leave-in Molecular Repair Hair Mask, 1.7 fl. oz.

Highlights

TXTUR Leave-In Conditioner, 10 fl. oz., 2 pk.