Pregnenolone is a precursor to all other hormones. It is involved in cellular repair, especially in the brain and nervous system. Pregnenolone protects cerebral function and protects against neuronal injury. Benefits include memory enhancement with no potential side effects and no restrictions on who can take it. It helps protect neuronal function and aid with memory problems. It is taken in a sustained release capsule in a micronized form taken orally. The typical dosage is 100mg daily.