DOME by Theraganics shampoo bars work well for all hair types.  They are salon quality and safe for color treated hair. They are also curly-girl method friendly by being sulfate and silicone free.
 
Peppermint & Tea Tree both are thought to help with oily scalp and dandruff type conditions.  Peppermint Oil also contains menthol, which provides a stimulating and therapeutic cooling sensation meant to soothe an itchy scalp. Tea Tree Oil is an antioxidant that's believed to be both anti-fungal and antibacterial.
 
Size - Avg 3.5-4 oz
 
Ingredients:
Sodium Cocoyl Isethionate (Coconut Oil*), Sodium Lauryl Sulfoacetate (Palm Kernal*), Organic Coconut Oil, Cocamidopropyl Betaine, Behentrimonium methosulfate (and) Cetearyl Alcohol (conditioner), DL Panthenol (Vitamin B5), Hydrolyzed Rice Protein, Peppermint Essential Oil, Tea Tree Essential Oil, Oxide Mineral Pigment
(*Derived Source)