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Researched by Helena DeMaria-Williams

Formula IngredientSolvent, Humectant

Sea Water

INCI: 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

What does this do in a formula?

mineral delivery, hydration, skin conditioning, soothing, trace element replenishment

Is Sea Water safe? Key considerations

Can Sea Water cause irritation?

Low Risk

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.

Does Sea Water increase sun sensitivity?

No Risk

Sea water does not increase photosensitivity. No sun protection precautions are required based on its presence in a formulation.

Is Sea Water safe during pregnancy?

Safe

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.

How does Sea Water work?

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.

Which products contain Sea Water?

Shop products that contain Sea Water