Hair care

I have natural straight black hair I use Pantene repair damaged shampoo and conditioner, and let it dry than pony tail. I don't straighten it no hairspray no products. Today I decided to wear my hair down and I saw in my truck where the natural light is I have a shit load of dandruff ‼️ I have used head and shoulders before but it gives me more 🙄 Is there other shampoos that can help. My hair is not damaged nor dry.