Does Garnier Fructis work on African American hair?

The Garnier Fructis Sleek & Shine line is amazing. The line includes everything to make your hair shiny, smooth, conditioned and controlled. I am African American and I used it on my daughter's hair. She has really curly hair (she isn't mixed with anything) and it worked wonders for her. I have tried different products but her hair would still come out frizzy and puffy. I washed her hair with the Sleek & Shine shampoo, followed by the Sleek & Shine deep conditioner. I then used the Sleek & Shine leave-in-conditioner along with the Anti-humidity frizz control hair milk. I blow dried her hair with a paddle brush and flat ironed her hair with an electric flat iron. Usually I would have to use a hot comb and THEN flat iron her hair and it would STILL come out puffy. Not with this Garnier Fructis Sleek & Shine line. My daughter's hair came out super shiny, extremely smooth and bouncy. It felt so moisturized. And I didn't have to add any oil afterwards. It looked as if I put a relaxer in it! I understand that everybody's hair is different but I just had to spread the Word on the wonders of this product.