Has the energy-drink craze peaked? Drinks like Slow Cow, Vacation in a Bottle and Mary Jane's Relaxing Soda are the anti-Red Bull: they're loaded with natural — though not necessarily F.D.A.-certified — relaxants like melatonin, hops, linden, kava extract and valerian….IBISWorld, a market-research company, says it expects the relaxation-drink category to reach sales of $68 million this year.

While energy drinks are a very competitive segment of the beverage market, he said, Chillo — which has a slight hint of citrus but no medicinal aftertaste — has its own niche. "There are a couple of other hemp drinks out there, but they're billed as relaxation drinks, rather than energy drinks," Behar said.

Blue Cow relaxation drink expanded overnight to the shelves of over 500 stores in California….Tom, a 45-year-old LA Freeway commuter, says, "My feelings of road rage and commuter stress have reduced significantly since I have been drinking Blue Cow; it's a must-have in my car."