Coffee may be your mind-sharpening tool of choice, but some of Silicon Valley's brightest brains are relying on something substantially stronger for their morning pick-me-up.

Young professionals in the technological hub are microdosing on lysergic acid diethylamide (LSD) and magic mushrooms to help them to concentrate, increase productivity and enhance creativity, according to Rolling Stone.

By routinely taking a minuscule amount – about 10 micrograms of LSD, or 0.2-0.5 grams of mushrooms, a tenth of a normal dose – users are said to benefit from the illegal drugs' "subperceptual" effects.

Rick Doblin, founder and executive director of the Multidisciplinary Association for Psychedelic Studies told the magazine that the dose, usually taken in the morning before starting work, is enough "to feel a little bit of energy lift, a little bit of insight, but not so much that you are tripping."