Numbuzin No.5+ Vitamin Concentrated Serum is a powerful antioxidant serum formulated to brighten skin, reduce pigmentation, and even out skin tone with the combined benefits of 98% pure glutathione, vitamin C, vitamin E, and Coenzyme Q10. Key Benefits Brightens & Evens Skin Tone: Combines glutathione, vitamin C, vitamin E, and Coenzyme Q10 to effectively target pigmentation, blemishes, and dullness. Fast-Acting Formula: Delivers visible improvements in skin texture and brightness within two weeks. Whitening & Brightening Power: Enhanced with tranexamic acid, niacinamide, and alpha arbutin for superior skin brightening. How to Use Apply the serum evenly over the entire face. Add an extra drop to areas of concern and gently tap it in for enhanced results.