TOSOWOONG Niacinamide 10% + Arbutin 7% Brightening Serum, 33ml — Hydrating, Fast‑Absorbing Dark Spot Corrector

This 33 ml serum blends high‑concentration niacinamide and arbutin with supportive hydrators and antioxidants to target hyperpigmentation and promote a clearer, more uniform complexion. Its lightly tinted pink formula includes vitamin B12 and glutathione for antioxidant support, while hyaluronic acid, panthenol and ceramide NP strengthen moisture retention. Designed for daily use, the fast‑absorbing watery texture layers smoothly under moisturizers and makeup.

How does this serum address dark spots and uneven tone?

The formula uses two actives—10% niacinamide and 7% arbutin—chosen for pigment‑regulating and brightening effects. They work alongside glutathione to reduce the visual intensity of hyperpigmentation over consistent use without harsh exfoliation.

• 10% niacinamide helps regulate pigment transfer and improves skin barrier function.
• 7% arbutin supports tyrosinase inhibition to reduce melanin formation.
• Glutathione and vitamin B12 add antioxidant support to protect tone.
• Clinically tested for zero irritation, suitable for daily corrective routines.

Will this serum feel heavy or leave residue on the skin?

The serum is formulated with a watery, fast‑absorbing texture that feels weightless and sinks in quickly. It leaves a fresh finish designed to sit well under creams, sunscreen and makeup without pilling.

• Waterlike consistency for rapid absorption.
• Non‑greasy finish keeps skin soft and smooth.
• Works as a layering product in both morning and evening routines.
• Small 33 ml size fits travel and daily dispensing needs.

How does the product support hydration and skin barrier health?

Alongside brightening agents, the serum includes hyaluronic acid, panthenol and ceramide NP to seal in moisture and reinforce the lipid barrier. These ingredients help minimize dryness and irritation risk while improving texture and elasticity over time.

• Hyaluronic acid attracts and retains moisture at multiple skin layers.
• Panthenol soothes and calms; it supports barrier repair.
• Ceramide NP helps rebuild the lipid layer to reduce moisture loss.
• Balanced formulation avoids stripping or over‑drying the skin.

Is this serum suitable for sensitive skin and daily use?

Yes—the formula has been clinically tested with a 0.0 irritation score and designed to be gentle on all skin types, including sensitive. Start with patch testing and introduce it gradually; results for spot reduction are typically seen with consistent application over several weeks.

• Clinically shown to be non‑irritating in testing.
• Suitable for combination, oily, dry and sensitive skin types.
• Recommended for both morning (under SPF) and evening routines.
• Use a small amount and increase frequency as tolerated.

Who is this for? This serum is aimed at anyone seeking to reduce the appearance of age spots, acne marks or uneven pigmentation without harsh exfoliants—especially those who prefer a lightweight Korean skincare approach. It suits users who want a targeted discoloration corrector that also provides hydration and barrier support, and it’s convenient for travelers or newcomers to active treatments due to its moderate 33 ml size. For best results, pair with daily sunscreen and a gentle cleanser, and incorporate gradually into your routine to monitor sensitivity.