I am a huge TRESemme fan, simply because their products are simple, affordable and lasting. I purchased both this Infusing Serum along with the 7-DAY Heat serum and love them both together. Compared to any other serum, I continuously purchase this product. The price is very affordable and my local Shoppers has many sales involving these products. #win#win

I would recommend anyone to try the product, I have long, thick hair and usually apply once my hair is wet and once I'm finished with styling it.

This was a great serum from TRESemme. It made my hair very smooth without making it greasy or oily. Had a nice scent that was not to strong. i will buy this again!

I have fine hair and found that this worked well at eliminating frizz but also weighed my hair down. Maybe this would work well for someone with thicker and coarser hair, but this isn't the product for me.

I love the smell of this product! I needed a serum that would keep my hair shiny, and yet be affordable. This product didn't disappoint me, and for the price, it did the job I needed it to do. I have thick wavy hair, and this product helped keep my waves at bay.

All you need is a little product and rub in hands and don't put profit to close to your roots and it will make your hair look shiny and look so amazing.

I bought this smoothing serum after failed attempts with other brands and was pleasantly surprised. This serum goes on light and gives me a nice smooth look after blow drying. It doesn't make your hair greasy the next day.

TRESemme Keratin Smooth - Keratin Infusing Serum is a great product for my long hair that gets breakage and frizz near the neckline and ends. Collars rubbing and a natural wave cause a frizzy dryness and this product smooths it all away leaving healthy looking hair.