This made my hair stay smooth for days after washing it but if you are looking for something to keep it straight so you do not have to straighten again for 7 days, this may not do it. I wore my hair straight, using a blow dryer to dry followed by a straightener and it looked great, it also looked great after I washed it and wore curly.

I received a samply of Tresemme Keratin Smooth Heat Protect 7 Day System for free to try in the mail. I used the shampoo, conditioner and leave in treatment product and then following the directions, blow dried and straightened my hair. The product definitely kept my hair straight and smooth for two days before I washed it, which is pretty sweet because my hair is notorious for falling back to its natural wave no matter what I do. The product promised to last through your next few hair washes during the 7 days. My hair definitely went wavy again after my first wash, but I could see it was less wavy than usual. It was also less frizzy than normal. But by the next wash, I could see no change in my typical hair behaviour. I would use this system every once and awhile to maintain my hair when I straighten it for a special occasion, or on a humid day maybe, however I can't see myself using it regularly because it is a lot of work.

I had never been able to find a product like this that I liked, but once I tried the Treseme Heat Protect, I loved it. It works so well, and makes my hair feel so soft.

Smells great, and my hair feels smoother and it seams to be growing a lot faster as well

I just started useing this product and so far I love it

I really like this product, when I flat iron when I started my healthy hair journey this was the heat protectant I used I really like it and still use it.

I bought the three because they were on special at Target ($3.99) and had a coupon ($7). It works well, eliminates frizz and makes my hair really soft. I was impressed! Great product like the ones from the salons. Will buy again and recommend to my friends. I am a lazy person with my hair and find the process long (shampoo, conditioner, blow dry and straighten) but worth it.

Keeps the frizz away for longer than a week and that is awesome

It smells really nice. It's light on the hair and doesn't feel sticky.

Since using this product my hair has had noticeably less split ends and is super soft! I recommend it!