Yes! The manufacturer claims that this product is lactose free.

Is Essentia Bottled Water, 1 Liter, 12-Pack, Ionized Alkaline Water 34 fl oz Lactose Free?

Yes! The manufacturer claims that this product is lactose free.
Lactose Free? Essentia Bottled Water, 1 Liter, 12-Pack, Ionized Alkaline Water 34 fl oz | Spoonful