As the popularity of relaxation beverages soars, grocery stores like ShopRite, increasingly are adding them to store shelves.

ShopRite, which operates 190 grocery stores in New Jersey, New York, Connecticut, Pennsylvania and Delaware, has added RelaxZen DAY and RelaxZen NIGHT products from RelaxZen Inc. to its product line.

RelaxZen’s 2.5-ounce tapered bottles being added to the chain’s functional food aisle near the energy bars and other shots. RelaxZen products are uniquely formulated with natural herbs and vitamins. The proprietary formula in RelaxZen DAY reportedly reduces stress, increases focus and alertness, while RelaxZen NIGHT promotes sound and restful sleep.

RelaxZen distribution as of  2010 includes Rite Aid (3,000+ stores), Duane Reade, Pilot Travel Centers, as well as a growing roster of regional grocery, c-store, pharmacy chains, numerous single-store operations and specialty chains.

RelaxZen products are available in the 48 continental U.S. states, Brazil and Canada.