Ethoxydiglycol Usage and Absorption

Based on the staff's reply:

1. Usage in Sunscreen Formulas: The staff reply does not state that Ethoxydiglycol cannot be used in sunscreen formulas. It explains that Ethoxydiglycol can potentially increase the absorption of other ingredients (like preservatives and fragrances). The use of such ingredients, including in sunscreens, is regulated and tested for safety at permitted levels by regulatory bodies. The focus is on the safety of the overall formulation when Ethoxydiglycol is used, rather than a blanket prohibition in sunscreens.

2. Carrier Effect for Preservatives/Fragrances: Your understanding that Ethoxydiglycol does not carry preservatives or fragrances into the skin is incorrect based on the staff's reply. The staff explicitly states that Ethoxydiglycol can cause these ingredients to absorb more into the skin. However, they also clarify that the allowed usage levels are deemed safe by regulatory bodies, and unsafe ingredients are banned.

In summary, Ethoxydiglycol can potentially increase the absorption of other ingredients like preservatives and fragrances, but its use within regulatory limits is considered safe. These regulations apply to various product types, including sunscreens.