Can the leftover KHT be used for a future treatment?

Yes, you can...mine had enough treatment for 4 different times...you will not regret it... I had many compliments..

can this be applied on top of other keratin treatments? I last did my daughters hair 4 months ago with Kerasilk keratin treatment.

I'm a not a professional hair dresser by any means. I just like saving money. I had previously done my hair at a salon and they used a different treatment. I could tell because it smelled different and it was very flaky when they dried it. I used Complex Brazilian Global and my hair turned out gorgeous. You just have to make sure you blow dry it VERY straight, like they do in the salon and also seal it with the hair straightener. Good luck!

Can I put my hair up within the three days I leave it in?

You shouldn't because it will leave the lines in your hair. Try to keep it as straight as possible I straightened my hair everyday to keep it perfect.

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Keratin Research Large Set- Brazilian Keratin Hair Straightening Complex Long-Lasting Treatment with Argan Oil for Smooth, Professional Straightening Results (4 PC XL VALUE)

Product ID: 1972194

Details

Brand
KERATIN
Hair Type
All
Item Form
Liquid
Item Weight
8 ounces

⏳4-6 months smoothness duration

🌿Sulfate-free, natural keratin & oils

💧300ml x4 bottles for lasting hydration

€ 179.82

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Unlock your sleekest, strongest hair yet — because your mornings deserve a glow-up! ✨

COMPLETE CARE KIT - Includes clarifying shampoo, moisturizing shampoo, conditioner, and straightening cream for a full hair transformation.
LONG LASTING SMOOTHNESS - Enjoy frizz-free, sleek hair for up to 6 months—wake up flawless every day.
POWERFUL NATURAL FORMULA - Infused with keratin, argan oil, and collagen amino acids to strengthen and repair all hair types.
SALON QUALITY RESULTS AT HOME - Achieve professional-grade straightening and smoothing without the salon price or wait.
EFFORTLESS APPLICATION SUPPORT - Easy-to-follow instructions plus responsive customer support to ensure perfect results.

This 4-bottle 300ml kit from Keratin Research delivers a sulfate-free Brazilian keratin treatment that straightens, smooths, and strengthens all hair types. Featuring a potent blend of keratin proteins, argan oil, and collagen amino acids, it offers professional-grade results at home with effects lasting 4-6 months. The set includes clarifying and moisturizing shampoos, conditioner, and straightening cream, designed for easy application and long-lasting frizz control.

Specifications

ASIN	B007KB8ZW2
ASIN	B007KB8ZW2
Best Sellers Rank	#61,808 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #1,510 in Shampoo & Conditioner Sets
Brand Name	KERATIN RESEARCH
Customer Reviews	4.2 4.2 out of 5 stars (7,227)
Hair Type	All
Item Form	Liquid
Item Weight	8 ounces
Item model number	KR3404
Manufacturer	KERATIN RESEARCH
Manufacturer	KERATIN RESEARCH
Manufacturer Part Number	821040000000
Material Features	Natural
Model Number	KR3404
Number of Items	1
Product Benefits	Frizz Control,Hydrating,Intense Conditioning,Moisturizing,Shine,Smoothening,Softening,Split Ends,Straightening,Strengthens
Product Dimensions	2 x 4 x 4 inches; 8 ounces
Scent Name	Floral
Set Name	Keratin Research 4-Piece Hair Treatment Set
Special Ingredients	Keratin,Coconut-oil,Argan-oil
UPC	821040014105
UPC	821040014105
Unit Count	40.57 Fluid Ounces

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