For starters if you want to use any of our bars of soap for shampoo (I would suggest not using the Exfoliating Gritty Coffee Soap for obvious reasons) all you need to do is suds up your hands real well then apply to your hair. Work it in real good, rinse, and if you desire REPEAT.
I also suggest using an apple cider vinegar rinse after shampooing. It closes up the hair follicles and is good for your scalp. To make it is real easy: Add 2 tablespoons apple cider vinegar to 2 pints of water. After your shampooing just pour a bit onto your scalp, work it in a bit to fully get to all hair, then rinse out completely.
For others that like a shampoo in a bottle you should check out my all natural handmade Liquid Shampoos. The shampoos are incredible, take a long time to make, and are concentrated. Much better than anything you could ever buy in a store. Use sparingly and it will last a long time.