What it is
Rosmarinus Officinalis Leaf Water is the water phase recovered during the steam distillation of rosemary leaves, carrying small amounts of the plant's aromatic and antioxidant constituents. In sunscreens and skincare it serves as a botanical alternative to part of the water phase and as a skin-conditioning agent. It is used for its sensory and marketing appeal rather than measurable sun protection.
Safety & warnings
Rosemary leaf water carries trace aromatic compounds from the plant and may contribute a herbal scent; fragrance-sensitive individuals could occasionally react. At the dilute levels typical of a hydrosol it is generally well tolerated.
Origin & sourcing
Natural; the aqueous byproduct of distilling the leaves of Rosmarinus officinalis, an aromatic Mediterranean shrub.
Questions everyone asks
What is rosemary leaf water?
It is the aromatic water collected when rosemary leaves are steam-distilled, used in cosmetics as a botanical, skin-conditioning component of the water phase.
Does it protect against the sun?
No. It is a conditioning and antioxidant botanical; sun protection comes from the product's UV filters.