Target stubborn dark spots and restore a clearer, more even-looking glow with numbuzin No.5+ Glutathione Vitamin Concentrated Serum. This daily brightening serum brings together 4% tranexamic acid, 5% niacinamide, glutathione, vitamin C, and alpha-arbutin to visibly improve hyperpigmentation, post-blemish marks, dullness, and uneven tone.

While the concentrated brightening complex addresses discoloration, 5% panthenol, ceramide NP, allantoin, beta-glucan, and sodium hyaluronate replenish moisture and help soothe the skin. The fluid, fast-absorbing formula layers easily into morning and nighttime routines and is suitable for all skin types, including sensitive and acne-prone skin.

Highlights

• Combines multiple brightening ingredients in one daily treatment
• Clinically tested to improve dark spots and skin-tone in four weeks
• Provides antioxidant care while supporting a more luminous complexion
• Helps hydrate, soothe, and support the skin barrier
• Can be applied all over the face or concentrated on areas of discoloration
• Hypoallergenic and skin-irritation tests completed

Clinical Results

After four weeks of use:

• Dark spots and hyperpigmentation reduced by 9.65%
• Skin-tone evenness improved by 18.90%
• Deep skin pigmentation reduced by 23.72%

Test center: Mariedm Skin Research Center
Test period: December 19, 2022–January 20, 2023
Individual results may vary.

Key Ingredients

• 4% Tranexamic Acid + Alpha-Arbutin: Target visible dark spots, post-blemish marks, and uneven skin tone.
• Glutathione + Vitamin C Complex: Provide antioxidant care and help restore clarity and radiance.
• 5% Niacinamide: Supports a more even-looking complexion while helping strengthen the skin barrier.
• 5% Panthenol + Ceramide NP: Replenish moisture and support a healthy skin barrier.
• Allantoin + Beta-Glucan: Help soothe and soften sensitive or easily irritated skin.
• Vitamin E + Coenzyme Q10: Complement the formula’s antioxidant system and help defend against oxidative stress.