[Jumiso] Niacinamide 20% Serum 40ml

Jumiso Niacinamide 20% Serum 40ml

This is the high-strength option in Jumiso's niacinamide line: a 20% niacinamide serum for skin that already tolerates the ingredient and wants more from it. The pore-refining formula pairs niacinamide with tranexamic acid (TXA) to brighten dull tone and reduce the look of dark spots, while keeping excess sebum and rough texture in check.

What the formula is built to do:

• High-strength niacinamide, dosed at 20% per the label, targets dullness, dark spots and uneven tone
• Tranexamic acid (TXA) reinforces the brightening, spot-fading work
• Succinic acid helps minimise the appearance of pores and further reduce sebum
• Fast-absorbing, non-sticky texture that is acne-prone friendly
• Free of fragrance and artificial colouring

Beyond the headline actives, the list carries supporting players — glutathione, hyaluronic acid in several forms, zinc PCA, allantoin and squalane — that add hydration and comfort around the strong core. To use, apply a moderate amount to the skin after toner and gently pat to aid absorption, then follow with moisturiser. At this concentration, ease in: start with evening use a few times a week, watch how your skin responds, and build toward daily use once it is comfortable. Always wear sunscreen in the morning while working on dark spots. If you are new to niacinamide altogether, Jumiso's 10% version of this serum is the better starting point — the 20% serum is aimed at skin already accustomed to the ingredient and wants a more concentrated push on stubborn dullness, dark spots, visible pores and excess sebum.