Circadia Light Day Sunscreen SPF 37

Circadia Light Day Sunscreen SPF 37 is a lightweight, non-comedogenic daily sunscreen built for people who want broad-spectrum UV protection without the heavy, pore-clogging texture that makes most sunscreens feel like a burden. It absorbs completely clear on all skin tones, works as a seamless base under makeup, and delivers far more than basic sun protection. This formula carries a subtle, citrus-adjacent scent from its botanical extracts.

Key Benefits

Broad-Spectrum UV Defense A chemical filter trio of avobenzone (3%), octinoxate (7.5%), and octocrylene (2.8%) absorbs both UVA and UVB rays, shielding skin from the two main drivers of photoaging and sun damage.

Enhanced UV Filter Stability SolaStay technology stabilizes avobenzone, which is known to degrade with sun exposure, keeping the UV filters performing consistently throughout the day rather than losing efficacy within hours of application.

Triple Antioxidant Defense Against Free Radicals Lipochroman (dimethylmethoxy chromanol) is a powerful antioxidant shown to neutralize oxygen, nitrogen, and carbon-centered free radicals, addressing a broader range of environmental oxidative stress than vitamin C or vitamin E alone.

DNA-Level Photoaging Defense Diaminopropionoyl tripeptide-33 helps reinforce the skin's response to UVA-induced damage, supporting the processes that protect against long-term photoaging at the cellular level.

Antioxidant Botanical Complex A blend of grape fruit cell extract, citrus peel extracts, apricot fruit extract, and rosewood extract delivers additional antioxidant support, helping to buffer skin against pollution and blue light oxidative stress throughout the day.

This sunscreen was built with acne-prone and sensitive skin in mind. If most SPFs break you out, feel suffocating, or leave a white cast, the lightweight texture and non-comedogenic formula here address each of those issues directly. It absorbs quickly, doesn't block pores, and doesn't deposit a visible film on deeper skin tones.

It also suits anyone focused on maintaining their skin's long-term health. If you're using active ingredients like retinol, exfoliating acids, or brightening treatments in your evening routine, consistent daily SPF is essential to protect that work, and this one does it without adding unnecessary weight to your morning routine.

If your skin leans dry, this functions well layered over a hydrating moisturizer. If your skin is oily or combination, the formula is lightweight enough to work as your daytime moisturizer and SPF in one step.

If you're using any exfoliating acids or vitamin C in your morning routine, let those layers absorb for a few minutes before applying this sunscreen so the actives can do their work first and the SPF formula sits cleanly on top without interference.

Final Step: Apply in the morning as the last step of your skincare routine, after serums and moisturizers have absorbed.

Amount: Dispense a nickel-sized amount for the face and neck.

Application: Spread evenly over the face, neck, and chest. Allow the formula to absorb fully before applying makeup.

Frequency: Use every day without exception, including cloudy days and days spent mostly indoors, to protect against incidental UV exposure and blue light from screens.

We offer free shipping on every order $50+ (just $7 flat-rate below that). Orders placed before 1pm PST Monday through Friday ship out the same day. Orders placed outside of that window are shipped the very next day!

Changed your mind? We get it. That's why our return window is generous: 30 days even if you've opened and tried it, or a full 60 days if it's still sealed. Some exclusions apply. See our full return policy for details.