I have been using a product by Redken called Groom which I just love and it works very well, but the last time I tried to buy more I find that it's been discontinued. Before that I tried conditioners and hairsprays, but they don't work. My own stylist is the one who suggested Redken's Groom. She has no other suggestions. If you use a nylon brushes or combs spray it with hair spray before combing your hair to prevent static.
Damaged hair has a negative electrical charge which can make the static even worse.
That's why it's important to follow a shampoo with a conditioner or finishing Rinse to neutralize the static charge before it happens. If you use a blow dryer use cooler heat settings and a moisturizing styling aid after it's dry to lock in moisture as well as style control. Avoid hot water as it will strip hair color and cause the static to flair up when the hair is dry. Take a dryer fabric softener sheet and cut it into several small squares. Put them into a plastic baggie or envelope and keep them in your purse.