Home Amazon Goldbox deals Amazon: Genius Caffeine – Extended Release Microencapsulated Caffeine, All-Natural Non-Crash Sustained Energy,... Amazon Goldbox deals Amazon: Genius Caffeine – Extended Release Microencapsulated Caffeine, All-Natural Non-Crash Sustained Energy, 100 VCaps By ARCOM - 27 February 2017 320 0 SHARE Facebook Twitter Amazon Goldbox Deal: List Price: $14.99 Deal Price: $11.99 You Save: $3.00 (20%) Genius Caffeine – Extended Release Microencapsulated Caffeine, All-Natural Non-Crash Sustained Energy, 100 VCaps Expires Mar 7, 2017