F1-O2, Hair Fact Fluence Advanced Cyclical Therapy (Women)Hair Fact Fluence Advanced Cyclical Therapy (Women) F1 O2 is a scientifically formulated hair kit providing essential nutrients for robust, healthy hair and scalp vitality. It supports women's unique haircare needs, nourishes hair from root to tip, improves strength and texture, and helps maintain optimal scalp balance for beautiful hair every day.