Works pretty good for being on the lower end (of drug store shampoos/conditioners) it left my hair soft and smooth with minimal frizzies. Overall I would give it a 4/5 stars.

Tresemme products are great, because you get a lot of product usually at great sale prices. This conditioner smells lovely and rinses easily from the hair. I would purchase again, however I don't think it works any better or worse from similar products on the market; the only advantage I find it price :)

I was very impressed with how well TRESemmé® Keratin Smooth System Conditioner moisturized my hair. It definitely reduced frizziness and improved its smoothness, helping me achieve a super straight hair look. I feel like it dramatically protects my hair from the heat damage I subject it to.

Loving the TRESemme Keratin Smooth Keratin Smoothing Conditioner. It smells so nice in the shower. It makes my hair feeling so nice and smooth. Love it.

So this is bargain for your buck as the bottles are huge. I like the smell and have used this to help straighten my curly hair. I use the whole line. I find it helps and keeps the frizz under control.

This is a great Tresemme conditioner - but I'm not sure how much more effective it is at smoothing than the other types. It does make my hair feel soft and hydrated though!

Pour un produit si peu cher le résultat est incroyable. Il lisse mes cheveux fins sans les rendre lourd . L'odeur est divine et reste longtemps dans les cheveux.

I use the Tresemmé Keratin Smth System Conditioner since it's on the market and I love that conditioner. It's leave my hairs straight, fluffy without frizness. I use it along with the shampoo and the result are perfect. It might not last 7 days but my hair look good for at least 4 days!!! Great hair products!

I love the tresemme line as you get a lot of product for a great price. My hair really needs a silky conditioner and this one is great. A little product goes a long way. Will definitely purchase again

I like this conditioner. The keratin line from tresemme is actually pretty good. My hair felt nice and clean and there were absolutely no frizzy hairs sticking out which I sometimes get lol overall pretty decent :)