The American Academy of Pediatrics endorses neurofeedback as an evidence-based practice for ADD/ADHD. See why in the meta-analysis of over 50 peer-reviewed studies demonstrating neurofeedback results: 50% of children get off medications and the remaining 50% function better on lower doses of medications:

White Paper, International Society of Neurofeedback and Research, 4/17/2013:
The Evidence-Base for Neurofeedback as a Reimbursable Healthcare Service to Treat Attention Deficit/Hyperactivity Disorder

• Protocols teach the brain to self-regulate – no energy comes into the brain. The process is safe, painless, and shameless. Results are noticeable within 3-8 sessions. 
• The brain needs about 30-50 sessions to sustain gains from neurofeedback. It is important to work with prescribers during this process to assess medication dosages as functioning improves.
• It can be important to engage in family counseling as trainees adjust to a new identity that is separate from labeling or personality identity that has become intertwined with symptoms.
• Neurofeedback positively impacts co-occurring symptoms that are common with attentional issues such as sleep, mood, fears, and reactive behaviors.
• Dr. Daniel Amen identifies 7 subtypes of attention issues; neurofeedback meets the brain with individualized protocols to address variations in symptoms. https://www.amenclinics.com/conditions/adhd-add/
• Neurofeedback has been found to be effective with all age groups. We know that neuroplasticity is available to us all when we are provided with appropriate interventions.