Cos De BAHA Niacinamide 10% Serum 30ml - Tightens Pores, Reduces Wrinkles, Repairs Skin, Vitamin B3 vs Beauty of Joseon Glow Serum Propolis + Niacinamide 30 ml

Pros

• ✓High 10% niacinamide concentration — clinically supported for pore tightening, sebum regulation, and hyperpigmentation
• ✓Complementary actives: zinc (sebum/anti-acne), allantoin (soothing), hyaluronic acid (hydration), aloe
• ✓Lightweight, water-like texture absorbs quickly and layers well under makeup and other serums
• ✓Excellent value — repeatedly highlighted as an affordable alternative to premium serums

Cons

• ✗Can pill when layered over certain serums or heavier textures — application order matters
• ✗One reported allergic rash — patch test recommended, especially for reactive skin
• ✗Packaging complaint: bottle not filled to capacity in some units
• ✗10% niacinamide may cause flushing or transient redness for very sensitive or rosacea-prone skin

Best For

Pros

• ✓Exceptionally high propolis concentration (59.94%) delivering genuine antibacterial, anti-inflammatory, and wound-healing activity
• ✓Broad user consensus on glow, brightness, and smoother skin texture after consistent use
• ✓Betaine salicylate is a gentler BHA variant effective at a wider pH range — suitable for sensitised skin that cannot tolerate regular salicylic acid
• ✓Free from artificial fragrance, essential oils, colorants, and mineral oil — well-suited to reactive and sensitive skin types

Cons

• ✗2% niacinamide is below the 5–10% range where clinical evidence for pigmentation reduction and sebum control is strongest
• ✗Honey-viscosity texture can feel tacky on application, particularly on humid or acne-prone skin where occlusion is unwanted
• ✗Propolis poses an allergy risk for individuals sensitive to bee products or pollen — patch-test required before full-face use
• ✗Minimal evidence of meaningful hyperpigmentation correction at these active concentrations; users seeking dark spot treatment will likely need a dedicated brightening serum

Best For