CHI Keratin K-Trix 5 Smoothing Treatment, Hair Serum For Creating Smooth, Frizz-Free Styles That Last, Sulfate, Paraben, & Cruelty-Free, 3.92 Oz
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Availability:
In Stock.
Arrives
Tuesday, Sep 23
Style: Smoothing Treatment
Size: 3.92 Fl Oz (Pack of 1)
Features
- SERUM FOR SMOOTH HAIR: This thermally activated smoothing treatment combines with the heat of a styling iron to smooth the hair cuticle, lock in moisture & seal out humidity for soft, frizz free styles that last up to 5 days (based on shampooing daily).
- CHI KERATIN LINE: Pair use of this product with the CHI Keratin Reconstructing Shampoo and Conditioner for the ultimate hair-smoothing routine.
- CHI HAIR TREATMENTS: CHI's masques and treatments are luxuriously rich to add strength back to dry, damaged or overworked hair. They deeply nourish and repair hair with essential vitamins and antioxidants that improve hairs overall luster and appearance.
- HOW TO USE: Before blow drying, apply a small amount to hair and work through evenly. Blow dry hair and follow with the CHI Ceramic Hairstyling Iron.
- CHI: Founded by Farouk Shami, a hairdresser allergic to ammonia who sought to create the first ever ammonia-free hair color & has remained committed to crafting the finest ethical haircare. All CHI products are cruelty-free, paraben-free, & sulfate-free.
Description
Gently cleanses and rids hair and scalp of impurities while balancing oils and strengthening the hair. The invigorating and soothing benefits of tea tree oil and peppermint oil work together to balance scalp oils and maintain moisture levels. Brand Story CHI haircare and tools are manufactured by Farouk Systems a Houston based company.
Product Benefits: Maintains moisture levels.
Hair Type: Treatments
Material Type Free: Paraben Free
Scent: Tea Tree
Liquid Volume: 115 Milliliters
Is Discontinued By Manufacturer : No
Product Dimensions : 1.25 x 1.25 x 3.9 inches; 3.53 ounces
Item model number : CHIKT4
Batteries : 1 A batteries required.
UPC :
Manufacturer : Farouk Systems Inc
Best Sellers Rank: #8,030 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #18 in Hair Styling Serums
#18 in Hair Styling Serums:
Customer Reviews: 4.6 4.6 out of 5 stars 16,244 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Sep 23
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Style: Smoothing Treatment
Size: 3.92 Fl Oz (Pack of 1)
The CHI Keratin K-Trix 5 Smoothing Treatment works exactly as promised. It leaves my hair soft, smooth, and noticeably shinier, with a healthy look that lasts for days. It also tames frizz without weighing my hair down or making it greasy. I love that it protects against heat styling while repairing damage at the same time. My hair feels stronger and more manageable after each use, and a little goes a long way. If you’re looking for a salon-quality smoothing treatment you can use at home, this one is a winner.
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Reviewed in the United States on August 11, 2025 by Matt
Style: Silk Infusion
Size: 6 Fl Oz (Pack of 1)
Made my soft from the first use. Just use little bit amount on damp hair and wrap your hair for 15-20 minutes then style your hair as usual. Soft and weight less makes your hair healthier the scent is nice .
Reviewed in the United States on July 14, 2025 by Katie aloud
Style: Silk Infusion
Size: 2 Fl Oz (Pack of 1)
I love this product. I haveshort to medium length hair. I need a very small amount. It makes my hair shiny and styling nicely. This bottle will last me a very long time. It's a great product!
Reviewed in the United States on August 1, 2025 by Erin Dewhirst
Style: Silk Infusion
Size: 6 Fl Oz (Pack of 1)
I have looked high & low for a good, clear, silk-infused treatment for my hair, that doesn't stink. I have used the Bio-Silk formula, but my local stores haven't had it in-stock lately. I also tried the basic, red-lettered CHI Silk Infusion. I liked the product, but not the smell. I have asthma, so I have to be careful with hair products that are strongly or wrongly scented for me. Certain scents induce breathing issues. A couple of years ago, I used Regis Design Line Silk Drops. It was amazing and had a fresh, clean smell. Sadly, they changed the fragrance, and I could no longer use. A nightmare for me is the modern, heavy-bodied, perfumy scents that are all the rage now. The most popular seem to be infused with a musky, heavy, vanilla odor. I can handle most fresh, floral or fruity smells. That musky, vanilla scent is nauseating to me, not to mention takes my breath away! Vanilla is great for baking, but who wants their hair or perfume to smell like that! For those that are wondering, this CHI Keratin Silk Infusion smells a bit different than their red-capped/red-lettered formula. It has a lighter fragrance with a somewhat citrusy tone. It works great, as long as you don't use too much. It softens & helps detangle, adding a bit of moisture & shine. My hair is color-treated, so I thought this would work better, to help strengthen. The smell doesn't bother me either. I count that as a win/win! Was so happy to find it here on Amazon!
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Reviewed in the United States on September 15, 2023 by AmericanBulldogger
Style: Silk Infusion
Size: 6 Fl Oz (Pack of 1)
I love CHI products, and this keratin infusion makes my hair shiny and healthy keeps my split ends at a minimum
Reviewed in the United States on August 3, 2025 by Tbar
Style: Silk Infusion
Size: 6 Fl Oz (Pack of 1)
Keeps my curls soft with no frizz! I live in Texas, the humidity capital of the world, and my hair is a frizz bomb without this! Silky smooth and soft curls without frizz!
Reviewed in the United States on August 2, 2025 by Texasred007 Texasred007
Style: Smoothing Treatment
Size: 3.92 Fl Oz (Pack of 1)
I recently cut my 2c coarse frizzy hair eleven inches. My hair now comes up to my shoulders and looks like a triangle bob when curly. Stupid me thought I could iron it every day. Dumb idea. After a month of ironing/blowdrying my hair every other day (with heat protector), my hair lost ALL its shine and barely holds a straightening. I didn't want to spend $300 on a permanent salon straightening, so I looked into many different options. It came down to an at-home keratin straightening with a full kit or this. I decided to try this, as it didn't seem nearly as harsh as the other one; I was scared an at-home permanent straightening could make my hair fall out. This seemed pretty idiot-proof :) ~EXPECTATIONS: Most of the reviews seemed to suggest that this was the miracle in a bottle I was looking for, but I was a little skeptical. It was only sold on Amazon and the Chi website, and I couldn't find reviews anywhere other than Amazon, which was both a little odd to me. No Youtube reviews or beauty blog posts on this product. I expected: 1) Softer silkier hair - due to the keratin 2) Straightening with flat irons and blowdrys that last longer 3) Heavier hair - also due to the keratin :) Keratin builds up on hair and can weigh it down, so I did buy a clarifying shampoo to go with it. ~HOW IT WORKED FOR ME: Holy cow! This was AMAZING. It did everything I expected, and more. I put it in freshly washed, mostly dry hair, even though instructions say to use it on damp hair. I also used a LOT, putting on each section of hair as I blew it, and my hair didn't feel heavy at all. As soon as I blew it, I noticed a massive difference. Firstly, it was baby soft! It was like different hair. Second, it made blowing my hair ten times quicker, and my hair didn't get as puffy as it normally did. I didn't even need to iron it, but I did, mainly because I wanted it to last at least 3 days (to minimize heat use). The only 'bad' thing about this is that it smells a little like soap, but its very faint. To people wondering if this protects hair from heat, it doesn't. It's a treatment, not a heat protectant - I used a heat spray after blowing/before ironing. This works great in humidity, terrible in rain (duh). The longest I've gone without washing it out was 5 days, and I only needed to touch up the ends once, but beware of oily hair *-* I use this now twice a week, and it works amazing. If your hair starts to feel greasy after a few uses, it's normal! Keratin is a great protein for hair, but too much can weigh down hair, especially fine hair, so make sure to incorporate a clarifying shampoo into your routine. ~PRODUCTS I USE: Shampoo - giovanni tea tree triple treat shampoo (clarifies and removes buildup) // Conditioner - aussie miracles moist 3 minute deep conditioner // Heat Protector - tresemme heat tamer spray // Leave-in Conditioner - garnier fructis curl air dry cream
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Reviewed in the United States on April 7, 2022 by S.N.
Style: Silk Infusion
Size: 6 Fl Oz (Pack of 1)
Product itself is great but the container was totally defective and leaked horribly. I put it in my work bag and it let out 75% of the bottle, and destroyed all the important documents/receipts I had plus the bag it was in. Lesson learned!
Reviewed in the United States on April 5, 2025 by Amazon Customer