I don't recommend products for more brain power unless I have personal experience with the product.
Brain training products to improve the brain (and get more brain power) for people of all ages, IQ levels, and athletic abilities: Some of these products are "brain training" and some are "training." It's important to use the term "brain training" and not "brain training" for all brain-training products. The term "training" is a misleading term. I think it's a bad idea to sell "training" to people who don't want to become experts at something. How to get your brain to think faster: This is a very popular brain training product. The main advantage of the product is that the product teaches you to think fast. The main disadvantage is that you might have to wait a long time to see your brain power increase. Mindfulness-based cognitive therapy for depression: This is the most common cognitive therapy product, but it isn't a very good one. This is not because it isn't effective, but because it's hard to see the results quickly. This is probably the most effective cognitive therapy for depression because it makes you focus on the thoughts and feelings, not the actions or thoughts of your mind.