How does the sulfur in this paste work on the skin, and what is the role of petrolatum?

The primary active ingredient in this paste is precipitated sulphur (Sulfur praecipitatum). In topical skin care, sulfur is valued for its keratolytic and sebum-absorbing properties. It works by helping to loosen the buildup of dead surface cells and excess oil that can contribute to clogged pores and uneven skin texture. The low-moisture paste format ensures that this active ingredient remains on the skin surface for an extended period, allowing for a more focused effect on the treated area.

To support this action, the formula includes petrolatum. This ingredient is responsible for the paste's dense texture and serves several practical functions. It reduces unnecessary friction while the product sits on the skin, making application smoother. Additionally, it forms a protective film that can soften the feel of the treated area. This base helps make the formula less harsh than a simple drying powder or alcohol-based solution, providing a balance between the active drying effect of the sulfur and skin comfort.