Zinc Oxide 15.7%. Inactive: Water ●
TL;DR. This ingredient functions primarily as an inorganic UV filter, reflecting and scattering UVB and UVA radiation while also absorbing some UV energy. At 15.7%, it is being used at a level typical for broad-spectrum sunscreen protection rather than as a minor colorant or soothing additive.
What does Zinc Oxide 15.7%. Inactive: Water do in a cosmetic formula?
This ingredient functions primarily as an inorganic UV filter, reflecting and scattering UVB and UVA radiation while also absorbing some UV energy. At 15.7%, it is being used at a level typical for broad-spectrum sunscreen protection rather than as a minor colorant or soothing additive.
Is Zinc Oxide 15.7%. Inactive: Water clean?
From a clean-beauty perspective, this ingredient is generally well accepted because it is low-allergen, non-fragrant, and not associated with the main restricted organic sunscreen filters. Clean-standard friction usually centers on particle size, inhalation concerns in loose powders or sprays, and surface coatings rather than routine use in creams or lotions.
Is Zinc Oxide 15.7%. Inactive: Water sustainable?
This material is mineral-derived and inorganic, so it is not biodegradable in the way plant-based organics are. Environmental discussion focuses on mining footprint, particle behavior in waterways, and coating choices, with non-spray, well-dispersed formats generally viewed more favorably.
Is Zinc Oxide 15.7%. Inactive: Water COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic when the grade, coatings, particle-size status, and regulatory use conditions meet the standard. Green Chemistry alignment is mixed, with strong stability and low skin reactivity, but limited renewability and no true biodegradation because it is an inorganic solid.
How does Zinc Oxide 15.7%. Inactive: Water work chemically?
The molecule is an insoluble ionic inorganic solid used as dispersed particles, and sunscreen performance depends heavily on particle size, dispersion quality, coating, and film uniformity. It is photostable across normal cosmetic pH ranges, but it can thicken formulas, leave a visible cast, and interact with some polymers, emulsifiers, or metal-sensitive actives if not well coated or dispersed.
Last updated 2026-05-13