Published in Current Research in Behavioral Science, the study measured the bioavailability of SRC (Sustained Release Caffeine) compared to immediate release caffeine and the effects of SRC on nootropic benefits, such as alertness and mood.
The study involved 24 healthy subjects receiving a single dose of 200 mg/capsule per day of SRC or 99% immediate release (IR) caffeine. The finding, according to a release from caffeine, resulted in a prompt increase in absorption that peaked within the first hour, followed by a sharp decline immediately thereafter up until 24 hours. SRC peaked around four hours, a ~325% increase vs. IR caffeine. SRC remained in the blood ~21% longer than IR caffeine. Compared to IR caffeine, the ingredient was also associated with feelings of alertness and better overall mood, as well as feeling less tired, jittery, and tense.
SRC is developed using a solvent-free process and the spray melt technology that involves coating caffeine granules, according to the release, which notes that the process makes SRC suitable for use in tablets, powders, stick packs, and capsules.
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