It’s all about your hair type and what it needs: Dive deep with treatments like masks or oils about once a week. Shampoo and condition? That’s your call — oily hair might need more frequent washes, but if it's dry, you can chill out on the washing. Our Pretti5 Rooting For You Hair Serum? Hit it 1-2 times daily over 4-6 weeks to boost that strength and growth.