K-SECRET Niacinamide 15% Glow Serum — 30ml Brightening, Hydrating Formula for Dark Spots & Even Tone

K-SECRET SEOUL 1988 Niacinamide 15% Glow Serum is a high-strength brightening and hydrating serum designed to help even skin tone, reduce the look of dark spots, and deliver a dewy finish without heaviness.

This lightweight Korean serum blends 15% niacinamide with glutathione, yuja extract, squalane and panthenol to target uneven tone while supporting hydration and barrier resilience. Agar gum microcapsules in the formula melt into the skin for slow-release emollience, and a mix of macadamia oil and shea butter provides lasting moisture. The 30ml dropper bottle is formulated for daily use under moisturizer and pairs well with the SEOUL 1988 Niacinamide Capsule Cream to amplify radiance and long-term skin comfort.

How does this serum help with dark spots and uneven tone?

The concentrated 15% niacinamide works alongside glutathione and yuja oil to promote a more even-looking complexion by addressing the visible appearance of discoloration. Regular use can create a more uniform skin surface while supporting overall clarity.

• 15% niacinamide to target hyperpigmentation appearance.
• Glutathione provides antioxidant support for brighter-looking skin.
• Yuja extract and yuja oil help tone and add natural antioxidants.
• Daily use under sunscreen for optimal visible results.

Will this serum provide lasting hydration without feeling heavy?

Yes — the formula balances emollients and humectants for deep hydration that doesn’t weigh skin down. Agar gum capsules slowly release moisture, while macadamia oil and shea butter lock in hydration for a soft finish.

• Agar gum microcapsules for gradual, long-lasting moisture delivery.
• Macadamia oil and shea butter for nourishing, non-greasy emollience.
• Squalane and panthenol to support barrier function and smoothness.

How should I use the serum in my skincare routine?

Apply after cleansing and toning, before heavier creams or oils, both morning and evening. Use a few drops and gently spread over face and neck; follow with sunscreen in the morning to protect results.

• Use 2–3 drops on cleansed, toned skin each morning and night.
• Pat gently until absorbed, then apply moisturizer or the SEOUL 1988 Capsule Cream.
• Always pair with SPF during daytime to safeguard improvements.

Is this serum suitable for sensitive or combination skin?

The lightweight texture and inclusion of barrier-supporting ingredients like panthenol and squalane make it suitable for many skin types, including combination skin. If you have very reactive skin, perform a patch test first because of the high niacinamide concentration.

• Panthenol and squalane help soothe and reinforce the skin barrier.
• Non-greasy formulation works well under makeup and moisturizers.
• Patch-test recommended for very sensitive skin due to 15% niacinamide.

Who is this for: K-SECRET SEOUL 1988 Niacinamide 15% Glow Serum is designed for anyone seeking stronger brightening action and deeper hydration without a heavy finish — ideal for users with uneven skin tone, visible dark spots, or those wanting a dewy boost to their daily routine. It complements other hydrating or niacinamide products but should be introduced gradually into sensitive regimens.

Ingredients

Water, Niacinamide, Butylene Glycol, Glycerin, Glycereth-26, 1,2-Hexanediol, Caprylic/Capric Triglyceride, Pentylene Glycol, Macadamia Ternifolia Seed Oil, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyglyceryl-10 Laurate, Squalane, Panthenol, Hydrogenated Polydecene, Carbomer, Tromethamine, Hydrogenated Lecithin, Polyglyceryl-3 Methylglucose Distearate, Ethylhexylglycerin, Butyrospermum Parkii (Shea) Butter, Adenosine, Sodium Hyaluronate, Gellan Gum, Agar, Sodium Phytate, Beta-Glucan, Citrus Junos Fruit Oil, Glutathione, Helianthus Annuus (Sunflower) Seed Oil, Hydroxydecyl Ubiquinone, Melia Azadirachta Flower Extract, Ocimum Sanctum Leaf Extract, Melia Azadirachta Leaf Extract, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Tranexamic Acid, Xanthan Gum, Tocopherol, Sodium Ascorbyl Phosphate