Ohui Shield

Day Shield is OHUI's dedicated sun protection line - the brand's answer to the full spectrum of daily UV protection needs. In Korean skincare, a dedicated SPF line from a prestige brand is common; it signals that the formulas have been developed with the same care applied to the brand's serums and creams, rather than being a generic SPF product with a brand label applied.

The Day Shield range includes options for different coverage preferences (fluid vs. cream), different occasions (daily vs. travel stick), and different skin concerns (oil control via the Black variant, broader protection via the Red variant). With 15+ products, this is one of the more developed SPF lines in OHUI's portfolio.

The Day Shield Perfect Sun Black is available in 30ml and 50ml sizes. 'Black' in Korean sunscreen naming typically refers to a formula with anti-pollution properties - a barrier against particulate matter, fine dust, and environmental aggressors beyond standard UV damage. South Korea's urban air quality concerns have driven a significant category of skincare formulas designed to work as both SPF and particulate barrier.

The 30ml size is the travel or trial format; the 50ml is the standard daily-use size. At 50ml, a daily morning application (the recommended 1/4 teaspoon) lasts approximately two to three months. The Black variant is available in both the newer formulation (Black Day Shield Perfect Sun) and what appears to be an older label variant (Day Shield Perfect Sun Black), with the content being functionally the same.

The Day Shield Perfect Sun Red is available in 50ml and a larger 80ml version (labeled 'NEW Day Shield Perfect Sun Red 80ml'). Red in Korean sunscreen lines often indicates a broader-concern or all-day-wear formula, positioning it as the everyday daily driver for most users. The 80ml size is notably larger than the typical Korean sunscreen format - suitable for users who apply generously or use sunscreen on the neck and decolletage in addition to the face.

At 80ml, the Red version offers better per-ml value than the 30ml and 50ml Black options for users who want a high-volume daily SPF. The 50ml Red and the 50ml Black are direct format comparisons - the choice between them depends on whether anti-pollution targeting or broader daily protection better matches your environment and priorities.

The Day Shield Sunquid 50ml is OHUI's lightest-texture SPF option in this collection. 'Sunquid' signals a fluid or liquid-serum consistency - thinner than most sunscreen creams and designed for users who find traditional sunscreens too heavy or who apply SPF under makeup. At 50ml it is a standard size for a daily fluid sunscreen.

The Sunquid is best suited for combination or oily skin types who find richer SPF formulas too occlusive, for users who layer foundation or BB cream over their sunscreen and need a base that does not pill, or for anyone who wants an SPF that disappears into the skin without leaving a white cast or heavy feel. It is a different texture approach than the Perfect Sun Black or Red creams, not an inferior alternative.

The Day Shield Sun Powder 20g occupies a unique slot in this collection. It is not a standalone sunscreen - it is a powder with an SPF component, intended for midday reapplication or as a finishing step that adds both light coverage and UV protection. At 20g, it is a compact-sized product built for the bag and on-the-go top-ups.

Korean sun powders are popular because they solve the problem of SPF reapplication over makeup. Reapplying a cream or fluid sunscreen midday over a full makeup look is impractical; a powder applies cleanly without disrupting base coverage. The Day Shield Sun Powder is best used as a complement to a morning cream or fluid SPF application, not as the primary daily sunscreen.

The Day Shield Aqua Sunstick To Go 14g is the travel format in this collection. Sunsticks are easy to carry, TSA-compliant, and do not require clean hands to apply - making them the most practical reapplication option when traveling or outdoors. The 14g size fits easily in a pocket or small bag.

'Aqua' in the name suggests a hydrating or watery-gel texture in stick form - lighter and less waxy than many Western SPF sticks. This format works well as a reapplication product and as a light primary SPF for low-sun-exposure days. For heavy outdoor exposure, pair it with a full-coverage cream SPF in the morning and use the stick for midday top-ups.

The Day Shield Ultra Sunblock UV Force 50ml is the highest-protection option in this collection. 'Ultra Sunblock' and 'UV Force' naming positions this as the maximum-coverage end of the line - suited for extended outdoor exposure, beach or outdoor sports use, or users who want the strongest UV barrier available from this line. At 50ml, it is sized for standard daily use but may run through faster when applied generously for outdoor activity.

This product sits at the opposite end of the texture spectrum from the Sunquid - it is a richer formula that prioritizes protection coverage. It works well as a standalone morning SPF for users with outdoor routines, or as the application used before planned sun exposure rather than the lighter fluid used on typical office-to-commute days.

In a Korean morning routine, sunscreen is the last step - applied after all serum, essence, and moisturizer steps have absorbed, and before any makeup. Apply a full day's SPF amount (roughly a 1/4 teaspoon for the face alone) and wait one to two minutes for it to set before applying foundation or BB cream on top.

For midday reapplication, the Day Shield Sun Powder 20g and the Aqua Sunstick To Go 14g are the practical options that do not disturb makeup. A full cream or fluid re-application midday requires removing and reapplying your base, which most users avoid on a workday. The powder and stick are specifically designed to solve this problem. If you do not wear base makeup, re-applying the Sunquid fluid or the Red/Black cream is straightforward - wipe away the morning application with a damp cloth or water wipe first, then reapply.