[This review was collected as part of a promotion.] This serum definitely does what it says it will. I used it after shampooing and conditioning, combing it through my hair evenly. My only caveat is that it's easy to over-apply it! If you've got very long hair like me, you'll want to get the serum all through it, but use a little bit at a time, or it'll end up being a bit heavy. However, my hair is wavy and prone to frizzing when it gets humid, and this definitely prevented that. My hair looked super neat and smooth when I went to work!

I worked at an ULTA store all through college, so I had access to all kinds of top of the line hair products, this one does just as good of a job as a leave in conditioner for a third of the price! It smells sooooo good and does a great job at detangling, plus it leaves my hair very smooth and soft all day

[This review was collected as part of a promotion.] I love this product. The packaging and the size is perfect. I struggled to get the pump to work for a bit, but after fidgeting around with it, I got it to work. The serum is thick when first dispensed but when applied to the hair, it doesn't feel thick at all. The serum smells amazing! I couldn't stop sniffing my hair after application. It doesn't leave your hair oily and greasy either.

[This review was collected as part of a promotion.] This is not the first anti frizz product that I have used and I honestly have to say that I was not impressed. I was happy that this product left a pleasant smell when it was applied to my hair. It didn't notice a change in the way that this product affect the frizz in my hair either. To accompany these reasons there was an even bigger with this product. After using it, I noticed that it left my was with a greasy look to it. I have tried using this product multiple times to ensure I wasn't using too much or too little, in an effort to avoid the greasy look. All-in-all, I was not overly impressed with this product.

[This review was collected as part of a promotion.] Garnier Fructis Sleek & Shine Anti-frizz Serum is a must have if you have dry or frizz prone hair. I use after using the Sleek & Shine Shampoo and Conditioner. Once my hair is semi dry or damp, I applied on all the lengths of my hair to the tips. It smooths out all my strays and frizzies I normally get around my temples. It hydrated my locks and definately provides long lasting sleekness and shine. It smells amazing also. And a little goes a long way when using this serum. I definately recommend and recommend using all three of the Sleek&Shine products for great hair results that last!

[This review was collected as part of a promotion.] I have always been plagued with frizzy hair and I envied any girl whose hair was perfect and sleek. When I got the Sleek & Shine Anti-Frizz Serum from Garnier Fructis, I was so excited to try it! I put some on after my morning shower and let my hair dry. Immediately, before my hair was even completely dry I could see a difference. Later that day, I was checking how my hair looked in the mirror and I was so amazed to see that for the first time it was practically frizz free and my waves hanged in perfect streams instead of looking like I had just been electrocuted! I am really impressed with this product. It is easy to use and it works really well. And it should be noted, as someone who is sensitive to smell, this product did not have an overbearing scent that a lot of hair products do which is always a perk!

[This review was collected as part of a promotion.] After trying Garnier Fructis Sleek and shine anti-frizz serum, I am in love. After a long struggle to find the perfect one. This is it! It works great. It doesn't leave my hair feeling oily or weighted down and the smell!! The smell is amazing. I highly recommend anyone with doubts to try this!

This was bought by my boyfriend for himself but I use it occasionally. It really leaves the hair feeling so soft and smooth. No more frizz and doesn't give the hair that greasy look like most over sheen and smoothing creams and serums products out there. It is light weight even after applying, by mistake, a lot of this stuff. I don't have to wash my hair so often. I'm on day four since the last washing day and my hair doesn't feel at all as oily and greasy as the days when this isn't worn. I never knew this serum was an oil absorber, but apparently it is. This also works well on my boyfriends thick dark hair, which frizzes and dries easily in the tiniest of humid air. Being that we live in Florida our hair faces 70 to 80 percent humidity. Not a very pretty sight. Plus my boyfriends' hair tangles like a ball of sewing thread with ease. After using this stuff over time I had noticed his hair is straighter and smoother. I could run my fingers through his shoulder length hair without getting them stuck... no more tangles in his strands. This also works well for dyed hair that is too dry or brittle. The really damaged bleached hair will benefit this serum a lot. I use very little of it and it'll last for days. Best leave-in ever! I will definitely buy one of my own right after the Sleek & Shine Blow Dry Perfector™ Straightening Balm and Sleek & Shine Flat Iron Perfector Straightening Mist run out. Thank you again so much Garnier for making the best products out there for skin and hair. Bless your hearts. Definitely please reconsider making a product line of make-up, especially travel powders.

[This review was collected as part of a promotion.] I love this product! It works wonders. I have frizzy hair and I've tried many different serums on my hair. I've had decent luck with some, but this works better than any of them. I just use a little when my hair is pretty much all the way dry and it sleeks everything. It tames my frizz and makes my hair shiny.

[This review was collected as part of a promotion.] I have been using Garnier Fructis Sleek & Shine Anti-Frizz Serum for almost 3 weeks now and I'm really satisfied with the product. It took me a while to figure out the best amount to apply and also the best way to apply it. I have long hair and one pump is enough for me. So if you have short hair I guess you would need like half pump. Also I never apply it on roots because it makes my hair look oily.