Start by identifying your skin goals and type, then pick a glow deep serum blue variant that matches them within the Beauty of Joseon range. For brightening and even tone, the Rice + Alpha Arbutin option is a common pick; for soothing, barrier support and calm, the Propolis + Niacinamide version is ideal. Consider how the serum layers with your existing routine, since textures differ. Begin with a patch test and introduce the product gradually, then apply sunscreen in the daytime.

Alpha Arbutin helps reduce pigment formation to brighten the skin, while Niacinamide supports the skin barrier and helps even tone. Rice extract provides gentle brightening and hydrating benefits, contributing to a smooth, radiant complexion. In glow deep serum blue formulations, these actives are designed to work together to brighten without excessive irritation. Always patch test and pair with sunscreen during the day for best safety.

Beginners should start with one product, applying 2–3 drops after cleansing and toning, then follow with moisturizer and sunscreen. A beginner might use it once daily or every other day to gauge tolerance. Pros can layer glow deep serum blue with other actives as tolerated, spacing active ingredients and adjusting frequency to skin response. In all cases, consistency over weeks drives the best brightening and soothing results.

Store glow deep serum blue in a cool, dry place away from direct light to maintain potency. Apply it after cleansing and toning and before your moisturizer; sunscreen should follow in the daytime. If you use other potent actives, space them out to minimize irritation and patch-test any combination first. Avoid double-dipping to keep products fresh and reduce contamination.

Choose Rice + Alpha Arbutin if your primary goal is brightening and an airy serum feel, while Propolis + Niacinamide is a good fit for soothing, barrier support and gentler care. If you have sensitive skin, start with the Propolis + Niacinamide option and monitor tolerance, then consider adding the other variant later. As with all Beauty of Joseon products, follow gentle layering and use sunscreen during the day.

Packaging varies by variant, with some bottles in glass and others in plastic, so handle with care. Store in a cool, dry place and keep the cap tightly closed to preserve potency. Check the product’s opening date and follow the brand’s guidelines for use after opening. Regularly inspect the product for changes in color or scent and discontinue use if irritation occurs.