The refill comes with its own mechanical pump, but we strongly recommend using it inside the DermEden jewelry case. The hard case protects the formula from temperature fluctuations and bumps in your purse, and preserves the integrity of the micronized spray pump.

Even the best urban sunscreen is useless if it isn't reapplied over makeup. The 8 mL size was designed specifically to be ultra-portable and eliminate any concerns about bulkiness. Replacing the refill every 3 weeks ensures strict adherence to skincare and cosmetic routines and keeps your UV shield 100% effective at all times.

No. Unlike older-generation sunscreen filters, our photostable technology (DHHB, BEMT) does not degrade over time. Even if you use it less frequently, the formula will remain fully effective inside its sealed cartridge. Just remember to always shake well before use.

No, because we’ve eliminated aerosols. Our product uses a mechanical mist pump that contains no propellant. It delivers precisely sized droplets—heavier than those in traditional aerosols—that settle directly onto the skin instead of remaining suspended in the air.