Jumiso Niacinamide 20% Serum 40ml – Intensive Dark Spot & Hyperpigmentation Serum

• Product type: High-strength brightening and dark spot serum
• Size / volume: 40 ml / 1.35 fl. oz.
• Primary concerns: Dark spots, post-blemish marks, hyperpigmentation, uneven-looking tone, dullness and visible redness
• Best suited for: Skin accustomed to Niacinamide and seeking more intensive pigmentation care
• Key active: Niacinamide 20%
• Dark spot care: Tranexamic Acid (TXA)
• Additional brightening support: Glutathione and Hexylresorcinol
• Triple Centella Complex: Asiaticoside, Madecassic Acid and Asiatic Acid
• Hydrating ingredients: Glycerin, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid and Sodium Hyaluronate
• Soothing ingredients: Allantoin, Portulaca Oleracea Extract and Centella-derived actives
• Botanical extracts: Gardenia Fruit, Ivy, Peony Root, Mugwort and Rhodiola Rosea Root extracts
• Texture: High-concentration watery serum
• Finish: Lightweight, fast-absorbing and non-sticky
• Clinical testing: Jumiso reports a 27.7% reduction in hyperpigmentation and 20% reduction in visible redness after two weeks under test conditions
• Usage: After toner, apply a small amount evenly over the skin and gently pat until absorbed
• Routine placement: After toner and before moisturizer; designed for morning and evening use
• Daytime care: Follow with broad-spectrum SPF 30 or higher each morning
• Formula note: Free from added Fragrance/Parfum and artificial colorants
• Origin: Made in South Korea

Core Product Details

Jumiso's High-Strength Answer to Stubborn Discoloration

Jumiso Niacinamide 20% Serum is the more intensive pigmentation-focused treatment in the Korean brand's Niacinamide serum collection. Formulated with a confirmed 20% concentration of Niacinamide alongside Tranexamic Acid and Glutathione, it targets stubborn-looking dark spots, post-blemish marks, uneven tone and dullness. A Triple Centella Complex and three forms of Hyaluronic Acid balance the high-potency brightening system with soothing hydration, creating a concentrated serum that remains surprisingly lightweight on the skin.

20% Niacinamide Takes Brightening to the Next Level

Niacinamide appears immediately after water in the official formula at a verified concentration of 20%. This high-strength level makes the serum particularly relevant for experienced Niacinamide users seeking intensive care for uneven-looking pigmentation and skin clarity. Niacinamide also supports healthy barrier function and can help improve the appearance of enlarged pores and excess oil, giving the formula benefits beyond pigmentation alone.

Tranexamic Acid & Glutathione Target Uneven-Looking Pigmentation

Tranexamic Acid is the fifth ingredient in Jumiso's current official formula, joined by Glutathione and Hexylresorcinol for a multi-pathway brightening approach. Together with 20% Niacinamide, these ingredients help improve the appearance of dark spots, post-inflammatory discoloration and overall unevenness. Jumiso specifically positions this 20% formula as its “Hyperpigmentation Specialist,” making pigmentation correction the clearest distinction between it and the brand's lower-strength Niacinamide serum.

Clinically Tested for Hyperpigmentation & Visible Redness

Jumiso reports a 27.7% reduction in hyperpigmentation and a 20% reduction in visible redness after two weeks of use under its clinical test conditions. The brand also reports 100% satisfaction among study participants regarding smoother, clearer and more even-looking skin. These results reflect the specific study conditions and should not be interpreted as guaranteed individual outcomes, but they reinforce the serum's intended focus on visible discoloration and clarity.

Triple Centella Complex Helps Balance the Potency

Asiaticoside, Madecassic Acid and Asiatic Acid make up Jumiso's Triple Centella Complex. These Centella-derived components provide soothing and skin-conditioning support, complemented by Allantoin, Portulaca Oleracea Extract and several botanical extracts. Their presence is particularly welcome in a serum containing such a high percentage of Niacinamide, helping create a more balanced formula for daily skincare.

Three Hyaluronic Ingredients Deliver Weightless Hydration

Hyaluronic Acid, Hydrolyzed Hyaluronic Acid and Sodium Hyaluronate provide moisture-binding support alongside Glycerin. Rather than surrounding its concentrated actives with a rich cream base, Jumiso keeps the texture watery, fast-absorbing and non-sticky. This allows the serum to slip easily between toner and moisturizer without making a layered morning routine feel heavy.

20% vs. 10%: Choose the Concentration That Matches Your Goal

Jumiso's 20% and 10% Niacinamide serums should not be treated as interchangeable formulas. The 20% serum is the more concentrated choice and is specifically positioned toward stubborn hyperpigmentation, dark spots and uneven tone. If you are new to high-percentage Niacinamide or know your skin reacts easily to concentrated actives, a lower-strength formula may be the more comfortable starting point. Experienced users seeking intensive discoloration care may prefer this 20% version.

When Your Dark Spots Need More Than a Gentle Nudge

Some routines call for simplicity; others call for precision. Jumiso concentrates 20% Niacinamide with TXA and Glutathione into a silky purple-bottled serum that feels almost deceptively light. It disappears quickly beneath moisturizer, leaving no heavy residue—just a focused daily ritual for skin that looks clearer, more even and increasingly luminous with consistent care.

FAQ

What does Jumiso Niacinamide 20% Serum do?

It is an intensive brightening serum designed to improve the appearance of stubborn dark spots, post-blemish marks, hyperpigmentation, uneven tone and dullness while supporting overall skin clarity.

Does Jumiso Niacinamide 20 Serum really contain 20% Niacinamide?

Yes. Jumiso officially confirms a 20% concentration, and Niacinamide appears immediately after water in the current published ingredient list.

What is the difference between Jumiso Niacinamide 10% and 20% Serum?

The 20% version contains twice the Niacinamide concentration and is specifically positioned by Jumiso for intensive hyperpigmentation care. Importantly, it is also a different formula: the supplier information provided for this listing belongs to the 10% version and should not be used for the 20% serum.

Is 20% Niacinamide too strong for beginners?

It can be more than some skin needs. Jumiso formulates the serum with soothing Centella-derived ingredients and positions it for sensitive skin, but 20% remains a high concentration. If you are new to Niacinamide or particularly reactive, beginning with a lower concentration or introducing this serum gradually may be more comfortable.

Can Jumiso Niacinamide 20% Serum be used every day?

Yes. Jumiso recommends morning and evening use after toner, followed by moisturizer. Individual tolerance should guide frequency, particularly with such a concentrated Niacinamide formula. During the day, finish with broad-spectrum SPF 30 or higher.

Give Stubborn Marks a More Focused Brightening Ritual

Jumiso Niacinamide 20% Serum concentrates 20% Niacinamide, Tranexamic Acid, Glutathione and soothing Triple Centella Complex into one elegant South Korean treatment. For skin already familiar with active skincare and ready for more intensive pigmentation care, it offers a lightweight path toward a clearer, smoother and more luminous-looking complexion.