There is no cure for Alzheimer's. Memory loss is a symptom of Alzheimer's but simple memory loss from other sources CAN be reversed but there is no guarantee (it depends on the source). If there is any supplement that claims it can cure Alzheimer's run very quickly away.
I didn't know what Prevagen was so I looked it up and unfortunately it got a lot of bad reviews - meaning that it didn't help them or that it won't be able to cross the blood/brain barrier and/or survive digestion.
Here are the reviews found on Amazon: www.amazon.com/Prevagen-Apoaequorin-30-Count-Bottle/product-reviews/B000V9O04W/ref=dp_top_cm_cr_acr_txt?ie=UTF8&showViewpoints=1
SHERRYModerator-Allergies/Asthma and Alzheimer's, Co-moderator-UC
Diagnosed Left sided UC in '92 - meds: 6mp, Colazal, Remicade and Bentyl*Unable to tolerate ALL mesalamines
*, in '11 diagnosed with IBS, Diverticulosis, Fibromylagia..I also have Sacroiilitis, Scoliosis, Raynauds, OA, PA, Rosacea, Psoriasis, Dry Eye and allergies controlled by Zyrtec and Singular