TOSOWOONG Glutathione Serum 30ml — 20,000ppm Brightening with Niacinamide & Hyaluronic Acid for Dark Spots and Hydration

TOSOWOONG Glutathione Serum is a lightweight 30ml treatment formulated with 20,000ppm glutathione, niacinamide and hyaluronic acid to help even tone, hydrate skin and support a smoother-looking complexion.

Designed in the Korean skincare tradition, this concentrated serum blends high-purity glutathione (listed at 99% purity) with brightening and hydrating actives. It aims to refresh dull skin, target the look of dark spots and fine lines, and deliver dewy moisture without heavy residue. The pump-packed 1.01 fl. oz. bottle fits into a daily routine for morning or evening use, layered under moisturizer and sunscreen as needed.

How does this serum help reduce the appearance of dark spots and uneven tone?

The formula pairs glutathione and niacinamide, two ingredients commonly used to improve visible unevenness and enhance clarity. Regular use helps the skin look more uniform while supporting a brighter overall radiance.

• 20,000ppm glutathione for concentrated topical delivery.
• Niacinamide to support skin tone balance and texture.
• Lightweight base suitable for layering under other products.
• Non-greasy finish that works well under sunscreen and makeup.

Will the serum hydrate and reduce the look of fine lines?

Hyaluronic acid in the blend attracts and holds moisture at the skin surface, plumping the look of fine lines and delivering visible softness. Combined with the smoothing effect of the core actives, the serum helps skin appear more supple and elastic over time.

• Hyaluronic acid for immediate skin hydration and plumping.
• Complementary ingredients that smooth texture and support elasticity.
• Suitable for layering with richer creams for extra moisture at night.

How should I use the TOSOWOONG Glutathione Serum in my routine?

Apply a few drops to cleansed skin once or twice daily, pressing gently until absorbed before applying moisturizer or sunscreen. It works well after toner or essence, and under makeup because of its thin, fast-absorbing texture.

• Use morning and/or night on clean skin.
• Apply 2–4 drops and pat until absorbed.
• Follow with sunscreen during daytime use.
• Can be combined with hydrating creams for sensitive or dry skin types.

Is this serum suitable for sensitive or acne-prone skin?

The formula emphasizes purity and light hydration, but individual tolerance varies. Patch-test first; if you already use active ingredients like strong acids or retinoids, introduce the serum gradually to monitor compatibility.

• 99% reported glutathione purity in the formulation base.
• Non-heavy texture reduces pore-clogging risk for many skin types.
• Start with limited application if combining with potent actives.

Who is this for: The TOSOWOONG Glutathione Serum is made for people seeking a concentrated brightening and hydrating step in a compact 30ml bottle — ideal for those wanting to address dullness, early signs of texture change, or uneven tone without adding heavy creams. It suits routine-focused users who prefer layering lightweight, active-packed products under sunscreen or moisturizer. If you are managing highly reactive skin or are unsure about ingredient interactions, try a patch test and introduce the product slowly into your regimen.

Ingredients

Niacinamide, Glutathione, Adenosine, Glycerin, Coconut Oil, Hyaluronic Acid