ZAYUU Super Korean Vitamin C Face Serum 23% — Brightening Hydrating Serum with Hyaluronic Acid & Ferulic Acid

ZAYUU Super Korean Vitamin C Face Serum 23% is a high-strength brightening serum that hydrates and helps even skin tone while feeling lightweight and fast-absorbing.

This concentrated facial serum blends 23% Vitamin C with supporting antioxidants and humectants to promote a more radiant-looking complexion in daily skincare routines. The formula combines Vitamin C with hyaluronic acid, Vitamin E, ferulic acid, panthenol, and a soothing botanical complex to stabilize active ingredients and maintain skin moisture. It is crafted to layer easily under moisturizers, sunscreens, and makeup so you can incorporate it into morning and evening regimens.

How quickly will I notice changes in brightness and dark spots?

Results depend on skin type and consistency, but many users observe improved luminosity and a more even-looking tone within several weeks of regular application. Vitamin C works gradually to address uneven pigmentation while antioxidants support visible improvement over time.

• Contains 23% Vitamin C for potent brightening support
• Ferulic acid and Vitamin E help stabilize and boost antioxidant action
• Recommended for daily use for gradual brightening effects

Will this serum hydrate without feeling greasy?

The lightweight texture is designed to absorb quickly and leave minimal residue, so it layers comfortably under other products. Hyaluronic acid and panthenol draw and lock in moisture to deliver a smoother, plumped appearance without heaviness.

• Hyaluronic acid provides multi-depth hydration
• Panthenol soothes and supports skin softness
• Non-greasy finish suitable for morning routines under sunscreen

Is the serum safe to use with other actives like retinol or niacinamide?

This formulation is compatible with many common skincare actives, but layering order and timing matter. Apply Vitamin C in the morning for antioxidant support and use retinol at night; niacinamide is included in the blend and works alongside Vitamin C to promote a balanced complexion.

• Use in AM for antioxidant benefits; follow with sunscreen
• Retinol is best reserved for nighttime to avoid irritation
• Niacinamide in the formula supports barrier function and tone

How should I incorporate this serum into my daily routine?

After cleansing and toning, apply a few drops to dry skin and gently pat until absorbed, then follow with moisturizer and sunscreen in the morning. For evening use, layer under your night cream; always patch-test when introducing a high-strength active and increase frequency as tolerated.

• Use 2–3 drops for full-face coverage; pat gently
• Morning: serum → moisturizer → broad-spectrum sunscreen
• Night: serum → moisturizer; patch-test new combinations first

Who this is for: ZAYUU Super Korean Vitamin C Face Serum 23% is aimed at people seeking a concentrated brightening and hydrating boost—those concerned with dullness, uneven tone, or the first signs of aging. It suits normal to dry, combination, and many mature skin types that tolerate active vitamin formulations. If your skin is very sensitive, begin with less frequent use and perform a patch test; consult a dermatologist for personalized advice if you have specific skin conditions.