She completed a Bachelor of Science degree at UCSD in Chemistry with an Emphasis in Chemical Education in 1994. She received her Pharm.D. degree in 1999 from UCSF, and did her residency in Pharmacy Practice at the UCSD Medical Center in 2000. Dr. Best was an NICHD/NIH Fellowship recipient in Pediatric Clinical Pharmacology Research from 2001 to 2004, and completed a Masters of Advanced Studies (M.A.S.) in Clinical Research at UCSD in 2007.