From the brand
Package Dimensions : 4.69 x 1.81 x 1.5 inches; 6 ounces
Manufacturer : COSMECCA KOREA
ASIN : B0FM23ZR4H
Best Sellers Rank: #6,763 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #182 in Facial Serums
Customer Reviews: 4.6 4.6 out of 5 stars (269) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
MAXIMUM POTENCY 20% NIACINAMIDE: Didn’t see results with 10%? Our double-strength formula delivers visibly minimized pores and balanced oil control for that coveted Glass Skin. Concentrated power works faster to refine texture and reveal a smoother complexion.
VISIBLE RESULTS IN 2 WEEKS: Clinically proven 27.7% improvement in skin clarity in just 14 days. Triple Tone-Evening Complex with Glutathione + TXA + Niacinamide targets uneven tone and dullness for a clearer, radiant look.
2X VALUE, HALF THE PRICE: Double the concentration, double the volume, half the cost of leading brands. Professional-grade dark spot care without the hefty price—effective K-Beauty skincare made accessible for daily use.
GENTLE FOR SENSITIVE SKIN: Powerful yet non-irritating. Triple Centella Complex keeps this 20% serum gentle for daily AM/PM use on all skin types. Lightweight, fast-absorbing, non-sticky formula layers perfectly without pilling.
REAL K-BEAUTY SCIENCE: Quality Korean skincare innovation backed by clinical results. 100% Vegan & Cruelty-Free with clean ingredients. The glass skin glow you’ve been searching for—finally in one bottle.
Monalisa King –
Very Good Serum
I’m very happy with this product. It works better and faster than other serums I have spent a lot more money on. I will buy this again. My skin looks more even toned and glowing. I use with a red light.
Great-style By CC –
My skin feels amazing , tight /firm and glowing!
I was using clarins double serum 1.0 oz for $95 skincare for over 5 yrs ..This Jumiso Niacaninaodr 20 serum is truly a superior quality product .If you’re looking for firmer, brighter, smoother skin without heaviness or irritation, this is definitely worth trying! Remember the product will give you the full effect or benefits if you apply correctly !
Jen –
Serum
Working great so far. I can see my dark spots getting lighter. Great product. Definitely recommend.
J –
Brightening Power Without the Drama: A Solid Niacinamide Serum That Works
The JUMISO Niacinamide 20 Serum is a genuinely good product that delivers noticeable results with consistent use. The formula feels lightweight and absorbs quickly, making it easy to incorporate into both morning and evening routines. Despite the high niacinamide concentration, it didn’t feel harsh or overly drying, and my skin looked more balanced and refined over time. The added glutathione and tranexamic acid give it an extra brightening boost, helping improve overall tone and clarity.What stands out most is how effective yet comfortable it is to use. My skin felt smoother, more even, and well-hydrated without irritation or pilling under moisturizer or makeup. A little goes a long way, and it layers well with other products, which makes it practical for everyday use. Overall, this serum feels thoughtfully formulated and reliable—an excellent option if you’re looking to target uneven tone and dullness with a product that quietly does its job well.
philip barretto –
Great for dark spot and hyperpigmentation without irritation
20% niacinamide is way too much but surprisingly this one didn’t irritate my skin and it works really good! It clears my hyperpigmentation and dark spot within a month! I bought it twice already. It is now part of my skin care routine and one of my holy grail! Love it!
Kitkat –
Its a nice niacinamide serum.
Truthfully I’m a little miffed. An influencer described this as a time release formula and I bought it without hesitation. yeah…boo. Lesson learned. Bc, there is nothing in the description saying that it is. I have no idea where she got that idea from…probably another influencer…you know how scientific these bobbleheads can be.But I got this on a Black Friday discount…so I couldn’t be too mad. I’m worried about potential irritation bc this is double the strength of the OG niacinamide serum from The Ordinary. So far it seems fine. There’s some additional ingredients in this serum…so maybe that will help keep irritation down. It’s a nice light formula with no stickiness. I don’t think the extra dye to make the serum appear plum color is necessary. Lots of ppl have allergies to dyes. For ppl with sensitive allergic skin…I’d be very careful around K beauty…and they often have long lists of plant based extracts that can trigger reactions. I can’t speak to the brightening effect of a 20% niacinamide strength over a 10%. But if you are looking for a bit of a change for your niacinamide, this product seems to be worth a look as the texture is very nice.
Abugazaza –
Great product
It really helps to tighten pores and reduce redness.
Janelle Ngu –
Noticeably brighter and smooth skin
I have been using jumiso niacinamide 20% serum daily and love how it absorbs quickly without feeling sticky.It’s helped even out my skin tone and reduce dark spots, and my complexion looks brighter and more radiant after a few weeks.Great for oilcombination skin and easy to layer with other products!