JUMISO 10% Niacinamide Dark Spot Serum – 40ml

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JUMISO 10% Niacinamide Dark Spot Serum delivers a clinically confirmed 27.7% reduction in the appearance of hyperpigmentation and 20% reduction in redness in two weeks — the beginner-friendly Korean brightening serum that produces the same triple-active results as higher concentrations, without the irritation risk that holds sensitive skin back from starting.

Most people who want a niacinamide serum never start one — because the options available are either too weak to produce visible results or too strong for sensitive skin to tolerate daily. 5% niacinamide serums are gentle but clinically underwhelming. 20% formulas are effective for experienced users but produce flushing, redness and irritation in sensitive and reactive skin that has never used niacinamide at therapeutic concentrations. The gap between these two options — the space for a formula strong enough to produce clinical results and gentle enough to use daily on sensitive skin from day one — is exactly what JUMISO built the 10% version to occupy.

JUMISO 10% Niacinamide Dark Spot Serum is a triple-active brightening formula combining 10% Niacinamide, Tranexamic Acid and Glutathione in a water-gel texture that absorbs without pilling, stinging or residue — clinically tested to deliver the same 27.7% hyperpigmentation reduction and 20% redness improvement in two weeks that JUMISO's clinical data confirms, at a concentration that sensitive and niacinamide-new skin tolerates immediately from the first application. TXA — Tranexamic Acid — inhibits the plasmin-activated melanin synthesis pathway that produces dark spots, working independently of niacinamide's melanin transfer interruption to address pigmentation through two separate biological mechanisms simultaneously. Glutathione neutralises the oxidative activity that drives melanin overproduction and provides the brightening dimension that the other two actives cannot reach alone. Three mechanisms. One no-pill, no-sting water-gel serum. Made in South Korea by JUMISO — the K-beauty brand committed to high-concentration actives that actually deliver measurable visible results.

What you get:

• -27.7% reduction in the appearance of hyperpigmentation and -20% reduction in redness in 2 weeks — the same clinical results confirmed for JUMISO's niacinamide range, achieved at 10% concentration in a formula designed to deliver clinical efficacy without the tolerance barrier that prevents sensitive skin from sustaining the consistent daily use that produces these results. Individual results may vary.
• No pilling, no stinging, instant absorption — the water-gel base was specifically formulated to eliminate the two obstacles that make high-niacinamide serums unwearable for most users: the pilling that occurs when high concentrations of niacinamide interact with silicone-based moisturisers, and the flushing and stinging that occurs when concentration exceeds the skin's current tolerance level. The 10% concentration and gel base solve both simultaneously.
• Triple Centella Complex plus Mugwort and Rhodiola Rosea for sensitive skin soothing — Asiaticoside, Madecassic Acid and Asiatic Acid deliver the full Centella Asiatica active profile alongside Artemisia Princeps (Mugwort) and Rhodiola Rosea — three soothing botanical systems that reduce visible redness and support the skin barrier simultaneously with the brightening actives, making this the niacinamide serum that actively calms the skin as it treats it.
• Succinic Acid, Zinc PCA and Hexylresorcinol completing the brightening complex — Succinic Acid provides gentle exfoliation to accelerate the shedding of pigmented surface cells, Zinc PCA supports sebum regulation and pore refinement, and Hexylresorcinol adds a fourth independent brightening mechanism that addresses discolouration through tyrosinase inhibition. Every dimension of visible skin tone unevenness is addressed through a different active — none of them redundant.

10% niacinamide delivers clinical brightening results because the threshold for niacinamide to meaningfully interrupt melanin transfer sits between 2% and 10% — above 2% the effect is measurable, and at 10% it is fully expressed without requiring the higher concentrations that only experienced skin tolerates. The clinical data confirms this: 10% and 20% deliver the same measured hyperpigmentation improvement in JUMISO's testing. The difference is not efficacy — it is tolerance. Choose 10% for sensitive, reactive or niacinamide-new skin. The results are identical. The journey is gentler.

This is for the woman who wants to start a niacinamide brightening protocol but has never used high-concentration actives before — or whose sensitive skin has reacted to 20% formulas — and wants the clinically confirmed Korean serum that delivers the same results at a concentration her skin will tolerate from day one.

Fast UK shipping and authenticity guaranteed — shop JUMISO 10% Niacinamide Dark Spot Serum at glamglobal.com.