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

TOSOWOONG Glutathione Serum is a concentrated 30ml Korean skin serum formulated with 20,000ppm glutathione, niacinamide and hyaluronic acid to brighten, hydrate and support skin elasticity.

This lightweight serum combines a high-concentration glutathione complex with niacinamide and hyaluronic acid to help revive dulled skin tone and replenish moisture. Developed in a Korean skincare approach, the formula emphasizes ingredient purity (glutathione at 99% purity) and complementary actives that target uneven tone, texture and hydration without heavy residues. The 30ml dropper bottle makes it easy to layer under moisturizers and sunscreen as part of morning or evening routines.

How does this serum help improve skin radiance?

The serum centers on glutathione at 20,000ppm, a potent antioxidant-grade ingredient presented at high purity to support a more even-looking complexion. Niacinamide works alongside glutathione to promote a clearer appearance and refine surface texture, while lightweight delivery ensures the actives absorb quickly.

• 20,000ppm glutathione for concentrated antioxidant support
• 99% glutathione purity for consistent performance
• Niacinamide to assist in evening skin tone and refining pores

Will the serum hydrate and reduce fine lines?

Hyaluronic acid in the formula attracts and holds moisture to temporarily plump the skin, which can visually soften the look of fine lines. The blend is designed to layer under creams so hydration is reinforced without a heavy finish, helping skin look smoother and more supple over time.

• Low-molecular hyaluronic acid for quick absorption
• Hydration supports a plumper appearance and smoother texture
• Non-greasy formulation suitable for layering

Is this serum suitable for daily use and sensitive skin?

The lightweight, fast-absorbing texture is made for daily use in both morning and evening routines, but as with any active treatment, patch testing is recommended for sensitive skin. Niacinamide and hyaluronic acid are generally well tolerated; if you use other potent actives, introduce the serum slowly to monitor compatibility.

• Designed for morning and evening application
• Compatible with most routine steps like moisturizers and SPF
• Patch test recommended for reactive skin or simultaneous strong actives

How should I apply the serum for best results?

Dispense a few drops onto clean skin and gently press or massage until absorbed, then follow with moisturizer and sunscreen in the daytime. Consistent use enhances visible improvements in tone and hydration; store the bottle upright in a cool, dry place to preserve ingredient stability.

• Use 2–4 drops on cleansed face, morning and/or evening
• Layer moisturizer and SPF after application when used in daytime
• Keep bottle capped and stored away from direct heat or light

Who is this for: TOSOWOONG Glutathione Serum is aimed at people seeking a targeted, high-strength antioxidant serum to address dullness, uneven tone and mild textural concerns while adding hydration. It fits well for skincare enthusiasts comfortable introducing concentrated actives, those moving toward brighter-looking skin, and anyone who prefers lightweight Korean-style serums that layer easily under other products.

Ingredients

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