Active: Sulfur 10%. Inactive: Water/Aqua/Eau ●
TL;DR. At 10%, this ingredient functions as an OTC acne-treatment active, helping dry excess surface oil and loosen pore-clogging buildup. The inactive phase mainly serves as the vehicle for application.
What does Active: Sulfur 10%. Inactive: Water/Aqua/Eau do in a cosmetic formula?
At 10%, this ingredient functions as an OTC acne-treatment active, helping dry excess surface oil and loosen pore-clogging buildup. The inactive phase mainly serves as the vehicle for application.
Is Active: Sulfur 10%. Inactive: Water/Aqua/Eau clean?
Clean-beauty frameworks generally treat this ingredient as acceptable when used within regulated acne-drug limits, but it can be drying, odorous, and irritating for reactive or barrier-impaired skin. Its clean-standard friction is more about tolerance and product category than broad restricted-list status.
Is Active: Sulfur 10%. Inactive: Water/Aqua/Eau sustainable?
This material is an inorganic mineral-derived element, often recovered as a byproduct of natural gas and petroleum refining rather than grown from renewable feedstocks. It is not biodegradable in the usual organic-chemistry sense, but it can convert among naturally occurring inorganic forms and is not a persistent polymer.
Is Active: Sulfur 10%. Inactive: Water/Aqua/Eau COSMOS-approved?
It can be allowed in COSMOS natural products when it meets the standard’s mineral and processing rules, but a 10% acne-drug format may fall outside a simple cosmetic certification review depending on market classification. Green Chemistry fit is mixed: simple inorganic chemistry and a minimal inactive base are favorable, while nonrenewable recovery and limited biodegradability weaken the profile.
How does Active: Sulfur 10%. Inactive: Water/Aqua/Eau work chemically?
The active is a nonmetal element that commonly exists as cyclic eight-atom molecules, with very low solubility in the vehicle and activity delivered as a dispersed solid rather than a true solution. In acne products, 3–10% is typical, and formulas often manage odor, grittiness, and drying feel with particle-size control, suspending agents, and barrier-supportive emollients.
Last updated 2026-05-15