Although the smell is strong, it defrizzes the hair perfectly. i always buy this product. just make sure you wear a mask and gloves and make sure your client wears a mask.
I mean, this keratin is spectacular. I have looked for several in Spain and couldn't find the right one. Since it doesn't contain formaldehyde, it's a step I was looking for, and from my experience, it's truly spectacular. It straightens from root to tip. Very satisfied with the product, I will buy it again.
It has a very strong smell, but the product does smooth the hair for a while, though not for long, and then it frizzes up again. But it's a very smelly product...