Most ready-to-drink cans are labeled unsweetened and use natural flavors. The small liquid enhancer is described as using real fruit extracts and is sweetened with steeped stevia.
You’ll find ready-to-drink sparkling canned waters sold in multi-packs and small noncarbonated liquid concentrates (liquid enhancers) that mix into water.
Many ready-to-drink sparkling waters list 0 calories per serving and 0g sugar or advertise 'no added sugar.' The listed liquid enhancers also market zero sugar; one enhancer is sweetened with stevia.
Most ready-to-drink options are sold in multi-packs (commonly 8‑packs of 12 fl oz cans or 6‑packs). Liquid enhancers come as small 1.62 fl oz bottles designed to flavor multiple 8‑oz servings.
The listed 1.62 fl oz liquid enhancer is sized to make 24 eight‑ounce flavored drinks.
Some products list vitamin C per serving and some list natural caffeine; antioxidant or immune-support wording also appears in at least one description.