Calm in a can. Relaxation after a few sips.

That's what some drinks companies are promising with beverages formulated specifically to help you chill out.

Lucy and Serena swear by them. They're good friends who, like many, are juggling careers, the chaos of having small children, trying to stay fit, and everything else in between.

"These drinks aren't going to get rid of all my worries and anxieties," Serena says, "but if they give me a little boost - then I'll take it."

Lucy finds them really useful too, especially when she's feeling a bit overwhelmed.