Numbuzin No.5+ Glutathione Vitamin Concentrated Serum | 4% Tranexamic Acid + 5% Niacinamide + Glutathione | Clinical Dark Spot Corrector for Sensitive Skin

The Clinical-Grade Brightening Cocktail, Gentled for Sensitive Skin.
Introducing the Numbuzin No.5+ Serum—a concentrated, research-backed formula that redefines brightening. Unlike single-ingredient serums, it synergistically combines four globally recognized lightening agents at optimal concentrations to interrupt melanin production at multiple stages. Clinically proven to visibly improve skin tone and brightness in just 2-4 weeks, this fast-absorbing serum is your direct path to a flawlessly even, luminous complexion.

⚡ The Quadra-Brightening Science: How It Targets Dark Spots at Every Stage

4% Tranexamic Acid: The prescription-strength star. Works deeper in the skin to calm melanocyte activity and reduce vascular inflammation that contributes to stubborn melasma and post-inflammatory hyperpigmentation (PIH).

5% Niacinamide: The stabilizer. At its ideal concentration, it blocks pigment transfer to skin cells, refines pores, and strengthens the skin barrier to prevent future discoloration.

Glutathione: The master antioxidant. Internationally renowned for its skin-lightening properties, it inhibits tyrosinase and helps detoxify skin cells for a clear, healthy glow from within.

Vitamin C (Ascorbic Acid Derivative): The shield & booster. Provides potent antioxidant defense against free radicals that trigger pigmentation, while brightening existing spots and boosting collagen.

Key Benefits You'll Experience:
✅ Clinically Proven Efficacy: See measurable improvements in skin brightness and evenness in 2-4 weeks.
✅ Multi-Pathway Correction: Attacks dark spots from multiple angles for faster, more comprehensive results.
✅ Sensitive Skin Suitable: Formulated to be non-irritating, lightweight, and non-sticky.
✅ Strengthens & Protects: Antioxidants shield against future environmental damage while improving skin health.
✅ Fast-Absorbing & Layerable: Leaves no residue, making it perfect under makeup or other skincare steps.

How to Use for Best Results:

After cleansing and toning, apply 2-3 drops to your entire face, gently patting onto areas of concern.

Allow the serum to fully absorb—its quick-drying formula makes this instant.

Use consistently, morning and evening. For daytime use, ALWAYS follow with broad-spectrum SPF 30+. This is critical to protect your results and prevent new spots.

Follow with your preferred moisturizer to lock in hydration.