According to an American company, their product, Thync, helps you zap your brain into a better mood. Using ultrasound and and electrical impulses to stimulate neurotransmitters the user can achieve any mood they want, whenever they want.
For about $299 you can get the Thync device, 10 calming strips and 10 energy strip (use one strip each time). Do the math and you get $14.95 for each hit.
I haven't tried this, I'm not being paid to write about it, but it does sound interesting if it works.
If Thync wants me to try this out I would be more than willing!!