Numbuzin No.5 Vitamin Concentrated Serum – A Precise Solution for Radiant and Even Skin Texture
When battling dullness, signs of fatigue, or post-acne marks, standard moisturizers often fall short. This concentrated serum is designed for those seeking not just a temporary glow, but deep, structural uniformity in skin tone. Instead of using conventional water, the core of this composition is lingonberry extract, which makes up over 60% of the product’s volume. This choice infuses every drop with antioxidants that act as a shield against oxidative stress, restoring the skin’s natural, healthy vitality.
The product’s efficacy relies on a sophisticated mechanism where glutathione meets potent acids. Glutathione, often called the master antioxidant, works by inhibiting melanogenesis—the process by which the skin produces excess pigment. This action is complemented by a precise 4% concentration of tranexamic acid, which directly corrects existing color irregularities. A scientific approach is combined here with a soothing effect, ensuring active ingredients work in harmony without causing unnecessary irritation, simply awakening the skin’s inner radiance.
- Niacinamide (5%): brightens the epidermis, visually refines pores, and strengthens the protective barrier.
- Tranexamic acid: specifically targets hyperpigmentation and prevents the formation of new dark spots.
- Vitamin C: a blend of multiple forms provides intense antioxidant protection and promotes natural luminosity.
- Panthenol: calms sensitive areas and provides deep, long-lasting hydration.
The yellowish, transparent liquid instantly merges with the epidermis, leaving no sticky residue. The light, tactually pleasant texture glides over the skin, leaving it soft and prepared for subsequent care steps. It is a sensory experience where technical precision in formulation meets luxurious comfort.
The serum is ideal for use in morning and evening rituals after toning, preparing the skin for cream application. With regular use, the complexion becomes visibly smoother, and color irregularities fade, giving way to a uniform, rested appearance. You can add this masterpiece of Korean cosmetics to your beauty bag by visiting our carefully curated store, where science and aesthetics become a seamless experience.
Country of origin: South Korea
Usage
After cleansing and toning the face, apply a few drops of NUMBUZIN No.5 Vitamin Concentrated Serum onto the face and gently massage until fully absorbed; use in the morning and/or evening before cream, avoiding direct contact with eyes, and for those with more sensitive skin, it is recommended to start by using every other day while observing the skin’s reaction.
Ingredients
Vaccinium Vitis-Idaea Fruit Extract, Butylene Glycol, Niacinamide, Panthenol, Tranexamic Acid, Water, 1-2-Hexanediol, Neopentyl Glycol Dicaprate, Caprylic/Capric Triglyceride, Sorbitol, Bifida Ferment Lysate, Chondrus Crispus Extract, Butyrospermum Parkii (Shea) Butter, Saccharum Officinarum (Sugarcane) Extract, Alpha-Arbutin, Sodium Hyaluronate, Melia Azadirachta Flower Extract, Ocimum Sanctum Leaf Extract, Melia Azadirachta Leaf Extract, Curcuma Longa (TurmericJRoot Extract, Corallina Officinalis Extract, Tremella Fuciformis (Mushroom) Extract, Pentylene Glycol, Glycerin, 3-0-Ethyl Ascorbic Acid, Bisabolol, Tromethamine, Ethylhexylglycerin, Adenosine, Hydrogenated Lecithin, Allantoin, Glutathione, Ceramide NP, Beta-Glucan, Dipotassium Glycyrrhizate, Tocopherol, Ascorbic Acid, Ascorbyl Glucoside, Tocopheryl Acetate, Hydroxypropyl Cyclodextrin, Ubiquinone, Thioctic Acid, Potassium Hydroxide, Behenyl Alcohol, Carbomer, Xanthan Gum, Disodium EDTA
The manufacturer is responsible for the product’s ingredients. Due to possible changes, we always recommend checking the ingredient list directly on the packaging.



Instead of lengthy descriptions, NUMBUZIN uses numbers from 1 to 9 (and beyond) to mark product lines designed to address specific skin issues—from uneven texture and dryness to pore care or restoring radiance. This approach allows informed and critical consumers to quickly identify and choose exactly what their skin needs, without getting lost in marketing noise. NUMBUZIN’s values are based on:
Trust NUMBUZIN’s approach to skincare—discover your number and let purposeful formulas take care of your skin’s needs. This brand inspires confidence with its clarity, concentrated compositions, and commitment to helping you achieve your desired skincare results without confusion. 




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