Jumiso Niacinamide 20 Serum Dupes & Cheaper Alternatives
From 31 Reddit threads · Updated October 8, 2026
20% niacinamide for fading PIH and dark marks; stingy for some. The catch: 20% is too strong for a lot of sensitive skin. Here's what Redditors reach for instead.
The short answer
Best Overall AlternativeTranexamic acid + niacinamide for dark spots · $17.00 · 29.9 ml
Best Cheaper AlternativeOil control and pore shrinkage · $6.00 · 30 ml vs $13.20 for the original
#1
Best Overall Alternative
- Size: 29.9 ml
- Price per ml: $0.57/ml (original $0.33/ml)
The why
One minus
Results are slow unless you stick with it for months
Good forDry Skin
Both recommended for Hyperpigmentation.
“It really improved my hyperpigmentation from acne, more so than any other vitamin C I’ve tried so far.”
— Reddit, r/koreanskincare
The original, at a glance
- Why people love it
- High-strength niacinamide + tranexamic acid
- Price
- $13.20 · 40 ml · $0.33/ml
#2
Best Cheaper Alternative
- Key actives: Niacinamide 10%, Zinc 1%
- Size: 30 ml
- Price per ml: $0.20/ml (original $0.33/ml)
The why
Studies found topical niacinamide helps acne, and Reddit mostly backs that for oil, pores, and red marks. The catch is the 10% strength: lots of users report stinging, flushing, and breakouts, especially on sensitive or already angry skin.
One minus
10% is where the irritation starts for a lot of people
Both recommended for Hyperpigmentation.
“had leg scars like that from a skate fall, hyperpig faded mine with the ordinary's niacinamide 10% serum twice daily for months.”
— Reddit, r/SkincareAddiction
#3
Same Active: Niacinamide
- Size: 50 ml
- Price per ml: $0.69/ml (original $0.33/ml)
The why
A niacinamide and spicule treatment that Redditors use for acne, texture, and glow. Studies found niacinamide helps acne, and the thread agrees on visible smoothing. Sensitive skin, rosacea, and barrier-wrecked routines often hate the prickly feel.
One minus
Spicules sting, burn, and can wreck a barrier
Both recommended for Hyperpigmentation.
“it helped lighten and fade the severe melasma i had all over my face, and dramatically reduced the size of my pores, and even decades old pick scars i had on my cheeks started to improve!”
— Reddit, r/koreanskincare
#4
Best for Hyperpigmentation
- Key actives: L-ascorbic acid 15%, alpha tocopherol 1%
- Size: 15 ml
- Price per ml: $4.73/ml (original $0.33/ml)
The why
A 15% L-ascorbic acid serum built around vitamin E and ferulic acid, with panthenol and sodium hyaluronate in the mix. Best for people chasing brightening, photoaging support, and dark-spot fading. The sting, orange oxidation, and price are the dealbreakers.
One minus
Steep price for a 30 mL bottle
Good forSensitive Skin
Both recommended for Hyperpigmentation.
“Changes: Added CE Ferulic + tretinoin + tinted SPF”
— Reddit, r/40plusskincare
Other alternatives worth a look
Dark-spot hunter — TXA plus niacinamide does the heavy lifting · 143 mentions
BrighteningDehydration
Niacinamide plus propolis — the glow serum crowd favorite · 104 mentions
Dry SkinUnder Makeup
Centella plus TXA for dark spots · 50 mentions
Brightening
10% azelaic acid for redness and breakouts · 713 mentions
GentleDewy Finish
Centella, panthenol, and ceramide NP do the barrier-support job · 195 mentions
Dry SkinFragrance-Free
Centella-heavy barrier rescue · 187 mentions
Dry SkinCream Texture
Browse more
Reddit's best serums by concern or skin type
Looking for a different product?