[This review was collected as part of a promotion.] I was extremely excited to try this out as I have very thick and frizzy hair. Since I have such thick wavy hair, I had to use several pumps of the serum. I found that if I used more than 4 pumps, my hair would get oily very quickly (which is saying a lot since it normally doesn't get oily until about day 5 of not washing it). If I only use 3-4 pumps, my hair doesn't get oily, but the serum doesn't help much with the frizziness. In the picture attached, the left side is when my hair was still wet and I applied the serum. The one on the right is a few hours later when my hair was dry. As you can see, there's still a lot of frizz. Overall, I'm not a huge fan of the product as it doesn't take away the frizz.

[This review was collected as part of a promotion.] This product is easy to use. I apply I small amount on damp hair and work it through my hair. I have found that it keeps my hair tame, but it also keeps my hair feeling soft and smooth all day. I have not noticed it making my hair greasy which was a concern, but again, I only use a small amount. Bonus: it smells great! I have recommended this product to family and friends!

[This review was collected as part of a promotion.] Finding the right anti-frizz product for my hair has been a journey I've been on for 10 years. What I can say completely honestly about Garnier Fructis Sleek & Shine Anti-Frizz Serum is that it truly does work to massively decrease the amount of frizz in my hair. I am fairly faithful to the anti-frizz product I currently use, but the Garnier product did exactly what it promised to, and not many can with my thick, unruly hair. The negative of this product, for me, was that I have extremely curly hair, and while it fights the frizz it also left my hair with no body and it looked weird, somewhere between curly and wavy and a complete mess. So while this product is absolutely not made for people with curly hair, it does do exactly what it was meant to. A success for the product, a semi-success for me personally.

[This review was collected as part of a promotion.] I have tried massive amounts of oil and serum from drugstore line from OGX to L'Oréal and this is by far the best one I have tried so far! And it's such a plus that I can use this product wether my hair is wet or dry so I always reach for it because there's never a wrong time to use it.

[This review was collected as part of a promotion.] When I first got this product I wanted to know “Is this going to help my hair when it’s humid outside?” And “is this going to make my hair look greasy?” I must say that this product completely helped tame my frizz and didn’t poof up with the humidity! My hair doesn’t look greasy and ther is a wonderful light smell to the product. I can skip the conditioner and use this in place of the conditioner. It helps keep the knots out of my hair and I also use it on my boyfriends daughter because she is young and gets easily knotted hair. Highly would recommend this product if you want shiny smooth hair in all weather types!

[This review was collected as part of a promotion.] The Garnier Fructis Sleek & Shine Anti-Frizz Serum is amazing. It really does it's job taming my frizzy hair. I love how my hair looks and stays in place. I don't feel that my hair is greasy unlike other serums that I've use before. I love it!

[This review was collected as part of a promotion.] This product successfully rids hair of overall frizz and gives it some shine without making hair oily. It doesn't tame flyaways very well, but it does a great job everywhere else. I will definitely continue to use this product. I used it on wet and dry hair with the same results.

[This review was collected as part of a promotion.] My hair is always frizzy with some flyaways sticking out, I tend to twist it up in messy bun or pony and just leave it and I've discovered this stuff can make it look so sleek before I run out the door. Two little dips in the tube is perfect for the whole top of my head. Very slight light fruity scent. It doesn't make my hair feel greasy or crunchy. I would recommend this for anybody's purse or gym bag. It is a must have for quick fixes before meeting/appointments or after your workout! My 13 and 15 year old daughters keep "borrowing" mine so it's young teen approved!

[This review was collected as part of a promotion.] I am always afraid to try products like this just because they usually leave my hair feeling greasy and weighed down looking. Not this product!!! First off the smell is amazing. Secondly, the serum is very light and doesn’t make my hair look or feel greasy! Totally in love with this product.

[This review was collected as part of a promotion.] I have an oily scalp and I refrain from using conditioner after the shampoo. So that kind of makes my hair frizzy for few hours after the hair wash. I wanted something that I could put on the body of my hair which would make it sleek and shiny minus the frizz. I stay away from masks and leave-in conditioners because of my ever moisturized scalp. So I thought I would give Garnier Fructis Sleek & Shine Anti-Frizz Serum a try. I have been using this for a month now. And it goes great with my hair. I use it on the ends of my wet hair after the wash. A light pump of serum, rub it between my palms and fingers, and run it through my hair. Any tangles that are left after shampooing are smoothened out. I air-dry my hair after this and the end result is silky, straight and smooth hair. I am against loading on a lot of products so the only two things I use on my hair are shampoo and this serum and I am good to go.