Initially rolling out exclusively through Waitrose, Contrex Â which comes from the Vosges region of France Â is said to help eliminate toxins from the body as well as provide a natural source of calcium and magnesium Â essential minerals to help dieters keep in shape.
One-litre bottles are rolling out priced 49p.
Perrier is also rolling out two other products under the Contrex umbrella Â In Shape and Radiance.
In Shape contains vitamin C from lemon and passion fruit juices, while fucus and ginseng are said to help energise slimmers.
Radiance, meanwhile, helps keep skin hydrated by providing beauty vitamins C and E and folic acid. Available in 330ml glass bottles, both variants come in packs of six priced around Â£4.70.
Perrier said is was already selling hundreds of millions of bottles of Contrex worldwide.