They are safe to use for skin care and body care, for health issues with children.
Hydrosols are floral water distillates obtained in the process of steam distillation or hydro-distillation. These distillates hold the water soluble properties of the material distilled, including small quantities of water soluble essential oils. Therefore they are not just water, but are possessed with the aroma and flavour of the material distilled.
So exhibit therapeutic benefits. They can be taken as therapeutic version of essential oils. They are safe to use for skin care and body care, for health issues with children.