Jones Soda is to launch a tea-juice blended drink with the amino acid, GABA, in the next few months, the company has said.

The drink will be available in stores across the US early spring 2009, Jones Soda said yesterday (26 February).

Jones GABA contains natural PharmaGABA, which, the company claims, has been shown to improve mental focus, balance and clarity, while reducing stress.

Jones chief operating officer Joth Ricci said: "Jones GABA helps people feel more relaxed and focused, allowing them to perform at their peak."

GABA (gamma-aminobutyric acid) has become extremely popular in Japan as a functional food and beverage ingredient and is expected to achieve mainstream popularity in the US, Jones believes.

PharmaGABA is the natural form of GABA, a key neurotransmitter in the regulation of proper brain functionality.

In Japan, sales of GABA-infused food and beverages increased more than five-fold between 2004 and 2006, with 2006 sales reaching approximately US$122m.

Jones GABA will be available in the US in four flavours: Fuji Apple, Lemon Honey, Nectarine and Grapefruit. A single serve 12 fl. oz. cans contain 150 mg of PharmaGABA and retail for $2.99.

Jones Soda partnered with Mitsubishi Corporation and Pharma Foods International in producing the brand.