Prevagen contains the ingredient apoaequorin</br>Prevagen Extra Strength contains twice the apoaequorin as original Prevagen</br>Apoaequorin is a protein our brains need for healthy function but is diminished in the aging process</br>Clinically shown to help with mild memory problems associated with aging</br>Supports a healthier brain?? sharper mind & clearer thinking</br></br>Product Description</br></br>Prevagen Extra Strength contains the ingredient apoaequorin?? a unique protein originally obtained from a specific species of jellyfish call