Can you use dry shampoo after keratin straightening?

Yes, you can use dry shampoo after keratin treatment. i wait for 72 hours and then use and do not wash my hair for 5-6 days. I believe one can use dry shampoo from the second day if one wishes. Without doubt the best dry shampoo around is Umberto Giannini, it is so fine it doesn't leave a residue and only needs to be fluffed up with ones fingers. It doesn't need to be brushed out.