Not the best, but not the worst hair serum. I have very fine hair and I find this serum to weigh down my hair a bit. Also, I have very oily hair and this makes it more oiler.

Used this product when styling my hair and it was fabulous.It is easy to use and when used with blow dryer it helped to control the fizz well.

This stuff is liquid gold! My hair is always under heat, and this serum protects it, calms the fly always, doesn't leave my hair greasy and the best part? It'scheaper than all those salon quality products!! Highly recommend

Makes my hair soft and silky. No more tangles.

No matter how small or large the amount my hair felt oily and it never controlled the frizz. Straight coconut or olive oil did a better job for me.

This really prevents frizz and protects my hair from damage from my blow dryer and flat iron. Love love this product

3 powerful drops is all you need for a sleek frizz free shine and control. I love this product.

I'm usually a fan of John Frieda products and would say that I've used Frizz - Ease for years now. Because it always worked. I bought this one instead of the regular frizz-ease and after using it pretty regularly I wish I'd bought my tried and true! I find this to be very average and it doesn't really deliver. I'm not sure if it's because there's different ingredients in it to "thermally protect" the hair but I find that it doesn't tame the frizz very well. My hair feels soft but I'm pretty sure it's from my shampoo and other styling products. I buy this for one thing: to tame the frizz for my curly/wavy hair and it doesn't do much to help. I'm sticking with the regular Frizz-Ease from now on! Do not recommend this.