GARNIER FRUCTIS KERATIN SLEEK SERUM 50ML

FRUCTIS Keratin Sleek & Stay is the best product for taming hair that i have used in a long time it actually does what it says, no more waking up with bed hair

I purchased the Sleek and Stay range from Garnier (shampoo, conditioner, hair mask, and heat-activated serum). The heat-activated serum has a very unpleasant, rotten, fish-like smell, which I only noticed on the third use. The other products are fine, so this appears to be an issue with the serum. Please advise on the cause and arrange a replacement or refund. Thank you.

This is definitely the star of the Sleek and Stay range. Ever since I received it, I’ve noticed a huge difference in my routine when I use it. My hair is the definition of sleek, shiny, and straight! After washing my hair, I apply this product and blow dry it, and it becomes straight and shiny with no frizz. As someone who wasn’t a huge fan of Garnier before, I think this range has changed my mind, especially this product. It’s also really lightweight, so I don’t feel like I have product in my hair.

This serum is the perfect finishing step and ties everything together. I use it on damp or dry hair, and it instantly makes my hair feel smoother and look shinier. You only need a small amount, and it spreads really easily through your hair. What I love is that it doesn’t feel greasy or heavy at all. Some serums can weigh your hair down or make it look oily, but this one just gives a soft, silky finish. It really helps control frizz and flyaways, especially after styling. My hair looks more polished and put together straight away. It also adds that final layer of smoothness that makes your hair feel really soft when you touch it. Like, proper silky—not just soft for a second and then dry again.

I’m usually careful with serums because they can make my hair look oily fast, but this one is lightweight. I only needed a small amount through the ends and it helped tame flyaways without flattening my hair. It gives a subtle shine rather than a greasy finish, and works well on dry hair to smooth things out during the day. The scent is fresh like the rest of the range. Nice finishing step if your hair gets frizzy or puffy. I would recommend this serum if you get frizzy hair especially from the humidity, it has definitely helped in this humid summer weather!

I’ve been using the Keratin Sleek & Stay Serum from Garnier Fructis, and it does a straightforward job without fuss. The serum feels lightweight and smooth, easy to apply to damp hair before styling or on dry hair to tame flyaways. A small amount goes a long way — I rub a tiny drop between my palms and work it through the mid‑lengths to ends. It absorbs quickly and doesn’t make my hair greasy or heavy. Once applied, my hair looks smoother and less frizzy, especially on humid days or after blow‑drying. It doesn’t weigh hair down and helps keep stray hairs under control. I don’t notice a dramatic transformation, but for everyday manageability, it’s effective enough. The scent is mild and pleasant, matching the rest of the Keratin Sleek range, and doesn’t linger too strongly. It plays well with heat styling — I use it before blow‑drying or straightening and don’t get any stiffness or build‑up. In short, this is a simple anti‑frizz serum that does what it claims. It’s easy to use, lightweight, and helps keep my hair looking smoother between washes. I’m happy with it and would use it again.

This serum is a game changer for at home sleek and straight hair. I have very curly, thick, frizzy hair and no matter what I have tried it always frizzes after a day if I straighten - a hazard of Queensland humidity. I used this after using the other products in the range to wash and condition. It is important to make sure you add it section by section, and not too much. The heat activation means you have to blow dry and flat iron to get the best results but it is worth it. My hair stayed frizz free and straight for a week which is not standard for me. I was able to brush it and it didn't produce static which again is unusual. I did try to use when I left my hair curly and it did also reduce frizz but this is best for straightened hair. This will remain a part of my routine when I straighten and the value is brilliant compared to similar products.

The final step, Garnier Fructis Keratin Sleek & Stay Serum, locks everything in beautifully. It instantly smooths flyaways and adds a glossy, polished finish without feeling greasy. A small amount goes a long way, and it helps keep my hair sleek and frizz-free throughout the day. My strands feel softer, look shinier, and stay smooth even in humidity. It’s the perfect lightweight finishing touch to complete the routine. My main criticism is that the smell is a little unpleasant, however it does not last. The product works well when used as recommended. It lasts up to 10 washes so best used fortnightly.

This was the product I reached for the least in the range. It’s well‑made, lightweight, and comes in a nice, practical size, but it’s not something I’d use on an everyday basis because I rarely style my hair or apply heat. I feel a bit unfit to judge it fully, given my own routine and circumstances, as someone who doesn’t need heat protection often. For people who style regularly, it would likely play a much more meaningful role in their lineup, but for my low‑maintenance approach, it didn’t become an essential step.

What an absolutely amazing product! I’ve used it countless times, and each time I’m more impressed than the last. In fact, it’s been so effective that I’ve ended up throwing away all my other products that were supposed to do the same thing. Even on days when I don’t straighten my hair, this product still leaves my hair feeling incredibly silky smooth and looking healthy. It not only feels great to the touch, but it also has this lovely fragrance that lingers, making my hair smell wonderful throughout the day. I’ve noticed a significant reduction in frizz, and it really tames my hair without weighing it down. Whether I’m going for a sleek, straight look or just letting my natural texture shine through, this product works like a charm every time. It’s definitely become a staple in my routine