I am semi-bald, 40+, male. I've been using solid shampoo and conditioner for over 4 years. Great for gym and travel. Here is the tip on how to use solid conditioner effectively.
1. Use only one side of the conditioner (opposite of logo)
2. After few uses you will form cup-like bar
3. When you get into shower, put some water in that cup-like conditioner bar and set it aside until you are ready to use it.