Circadia Circa-Shield Mineral Sunscreen SPF 30 is a broad-spectrum physical sunscreen that goes beyond basic UV protection to defend your skin against the full range of modern environmental stressors, including UVA/UVB rays and blue light from screens. Zinc oxide at 17.3% delivers reliable, non-irritating sun protection while a curated blend of botanical antioxidants works to calm inflammation and reinforce your skin barrier throughout the day. The formula carries a light, natural fragrance derived from lavender, jasmine, rose, and vanilla botanicals present in the blend.

Key Benefits

Broad-Spectrum UV and Blue Light Defense Zinc oxide at 17.3% creates a physical barrier against UVA and UVB rays, while Bis(Cyano Butylacetate) Anthracenediylidene targets high-energy visible blue light emitted by phones, laptops, and other screens.

Antioxidant Protection Against Free Radicals Green tea leaf extract, turmeric root extract, and rosemary leaf extract deliver concentrated antioxidant activity that neutralizes free radicals triggered by UV exposure and daily environmental pollution.

Calming Support for Reactive, Redness-Prone Skin Saccharomyces ferment and bladderwrack extract work together to reduce visible redness and support the skin's natural defense response, making this an ideal daily SPF for sensitized or reactive skin types.

Nourishing Hydration That Lasts Olive fruit oil, jojoba seed oil, and caprylic/capric triglyceride deliver lightweight, non-greasy moisture that keeps dry skin comfortable throughout the day without disrupting the feel of SPF coverage.

Lightweight Wear Under Makeup Lauroyl lysine and a silky emollient base give this formula a smooth, skin-like finish that layers cleanly beneath foundation or tinted products without pilling or heaviness.

If your skin leans dry, sensitive, or reactive, and you have struggled to find a mineral sunscreen that doesn't feel chalky or tight, Circa-Shield Mineral Sunscreen SPF 30 was formulated with your skin in mind. The zinc oxide base provides physical protection without the irritation that chemical UV filters can cause, making it especially well-suited for those with rosacea, sensitized skin, or skin that is recovering from professional treatments.

This SPF also works well for anyone who spends significant time in front of screens. The blue light defense built into the formula addresses a concern that standard sunscreens don't cover, making it a practical everyday option whether you're working indoors or spending time outside.

If you love a clean, botanically rich approach to sun protection, the antioxidant blend here, including green tea, turmeric, and sage extracts, gives you meaningful skin support alongside your daily SPF. It wears comfortably under makeup, making it easy to use consistently as the last step in your morning routine.

This formula has a subtle green tint that helps visually neutralize redness in the skin as it goes on, making it a great pick for anyone dealing with chronic redness or sensitivity who wants their SPF to do a little extra work before foundation.

Apply generously to the face, neck, and any exposed skin as the final step in your morning routine.

Reapply every two hours during direct sun exposure, or after swimming or sweating.

Frequency Use daily, including days spent primarily indoors, to maintain protection against blue light exposure from screens.