After an investigation, it was revealed that many top baseball athletes were connected with THG; the list included stars such as Jason Giambi, who would also confess to using human growth hormone and testosterone, Gary Sheffield, who admitted using the cream and the clear, albeit unknowingly.
Jason Mraz | Jason Alexander | David Jason | Jason Robards | Jason Grimshaw | Jason Kidd | Jason Kenney | Jason Isaacs | Jason Statham | Jason Newsted | Jason | Jason Priestley | Jason Aldean | Jason Scott Lee | Jason Schwartzman | Jason Mewes | Jason Ritter | Jason Donovan | Jason Bourne | Jason Aaron | Jason Williams | Jason Reeves | Jason McCoy | Jason McAteer | Jason Derulo | Jason Blaine | Jason Biggs | Freddy vs. Jason | Jason Williams (basketball, born 1975) | Jason Voorhees |
Fainaru-Wada and Williams conducted a two-year investigation centering on the BALCO sports nutrition center, its founder Victor Conte, and Greg Anderson, who served as a personal trainer (and alleged steroid supplier) for Bonds, Gary Sheffield, and Jason Giambi.