Researched by Helena DeMaria-Williams
Formula IngredientSolvent, HumectantINCI: Maris Aqua
Maris Aqua (sea water) is water obtained from the sea, rich in dissolved minerals including sodium, magnesium, calcium, potassium, and trace elements. In cosmetics it functions as a solvent and humectant, delivering minerals to the skin that can support hydration, soothe irritation, and improve skin tone. It is distinct from purified water (Aqua) due to its mineral content.
Category
Solvent, Humectant
Irritation Risk
Low
Skin Types
all skin types, dry, dehydrated, dull skin, mineral-deficient skin
mineral delivery, hydration, skin conditioning, soothing, trace element replenishment
Sea water is generally well tolerated in cosmetic formulations at typical concentrations. The salt content is diluted in finished products. No EU CosIng Annex II or III restrictions apply. Individuals with very sensitive or compromised skin barriers may experience mild stinging from the mineral salt content.
Sea water does not increase photosensitivity. No sun protection precautions are required based on its presence in a formulation.
Sea water is considered safe during pregnancy. It is a naturally occurring substance with no known reproductive or developmental toxicity concerns when used topically in cosmetic products.
Maris Aqua (sea water) is water obtained from the sea, rich in dissolved minerals including sodium, magnesium, calcium, potassium, and trace elements. In cosmetics it functions as a solvent and humectant, delivering minerals to the skin that can support hydration, soothe irritation, and improve skin tone. It is distinct from purified water (Aqua) due to its mineral content.
Individuals with severely compromised skin barrier (use with caution) should review the considerations above before use.
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