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COSRX 2% Alpha Arbutin Discoloration Care Face Serum with Niacinamide, Glutathione & Tranexamic Acid, 1.7 fl oz – Serum for Face, Korean Skin Care

TLDR Review: COSRX 2% Alpha Arbutin Serum

Item: COSRX 2% Alpha Arbutin Serum
Author: ShopSavvy

By ShopSavvy Team

Published: January 6th, 2026

Pros

•Lightweight and easy to apply without tugging or dragging on the skin.
•Suitable for rosacerone skin; did not cause irritation.
•Contains niacinamide and other beneficial actives, replacing the need for a separate niacinamide serum.
•Not overly emollient, which can be balanced with other hydrating products.
•Noticeable improvement in skin tone and texture with consistent use.
•Effective blend of 2% Alphrbutin, Niacinamide, and Tranexamic Acid helps improve hyperpigmentation and dark spots.
•Gentle enough for daily use, even on sensitive skin.
•Hydrates well due to Hyaluronic Acid without causing irritation.
•Safe and authentic product packaging confirmed, with no leaks.
•Positive results in skin brightness and evenness reported even after short use.

Cons

•Initial application caused intense itching and burning for some users, likely due to sensitive skin or rosacea.
•Results may take time; instant changes are unlikely and patient use is advised.
•Some users experienced no change in age spots despite consistent application.
•Recommended patch test before full use, which might not be convenient for everyone.

Bottom Line

The COSRX 2% Alpha Arbutin Discoloration Care Face Serum is generally well-received, particularly for its lightweight texture and effectiveness in improving skin tone and texture. However, results can take time, and initial reactions can vary based on skin sensitivity. For those serious about tackling discoloration or uneven skin tone, this serum offers a great blend of key ingredients at a reasonable price. Just be sure to patch test first if you have sensitive skin!

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