 I noticed my memory was better. There was definite improvement. I take a supplement for my heart. Why not one for my brain? I've been taking Prevagen for a little over five years. Prevagen is available in stores everywhere without a prescription. Based on a clinical study of subgroups of individuals who are cognitively normal or mildly impaired, this product is not intended to diagnose, treat, cure, or prevent any disease. Testimonialist was compensated for their time.