Quick answer: the Anua Niacinamide 10% + TXA 4% Serum comes closest to the Byoma Brightening Serum: it has every key treatment active in it (Tranexamic Acid and Niacinamide). On price, both sit in the Budget tier. It also overlaps with 8 other products below.
Products the Niacinamide 10% + TXA 4% Serum matches
Byoma
2 of 2
hero actives matched
Same price tierTranexamic AcidNiacinamide
Why it holds up: Matches every key treatment active in the original: Tranexamic Acid and Niacinamide.
Full ingredient analysis →See them side by side →Good Molecules
2 of 2
hero actives matched
Same price tierTranexamic AcidNiacinamide
Why it holds up: Matches every key treatment active in the original: Tranexamic Acid and Niacinamide.
Full ingredient analysis →See them side by side →Glow Recipe
2 of 2
hero actives matched
Pricier originalNiacinamideHyaluronic Acid
Why it holds up: Matches every key treatment active in the original: Niacinamide.
Full ingredient analysis →See them side by side →Haruharu Wonder
2 of 2
hero actives matched
Same price tierNiacinamideHyaluronic Acid
Why it holds up: Matches every key treatment active in the original: Niacinamide.
Full ingredient analysis →See them side by side →The Inkey List
2 of 2
hero actives matched
Same price tierNiacinamideHyaluronic Acid
Why it holds up: Matches every key treatment active in the original: Niacinamide.
Full ingredient analysis →See them side by side →Glow Recipe
2 of 3
hero actives matched
Pricier originalHyaluronic AcidNiacinamide
Why it holds up: Matches every key treatment active in the original: Niacinamide.
Full ingredient analysis →See them side by side →2 of 3
hero actives matched
Pricier originalHyaluronic AcidNiacinamide
Why it holds up: Matches every key treatment active in the original: Niacinamide.
Full ingredient analysis →See them side by side →2 of 3
hero actives matched
Same price tierHyaluronic AcidNiacinamide
Why it holds up: Matches every key treatment active in the original: Niacinamide.
Full ingredient analysis →See them side by side →1 of 3
hero actives matched
Pricier originalTranexamic Acid
Why it holds up: Shares Tranexamic Acid, but not the original's Azelaic Acid and Kojic Acid.
Full ingredient analysis →See them side by side →Common questions
Is the Anua Niacinamide 10% + TXA 4% Serum a real dupe?
It shares hero actives with 9 same-category products in our catalogue, most closely the Byoma Brightening Serum (matching 2 of 2 of its hero actives). "Dupe" here means shared key ingredients, not an identical formula.
Does matching more hero actives make it better?
No. The match count only shows how many hero actives are shared. The base, supporting ingredients, texture and price still differ, so use the side-by-side comparison for the full picture.
Go deeper
Niacinamide 10% + TXA 4% Serum
Full ingredient breakdown for this product.
Open the analysis →Educational information only — not medical advice. Overlap reflects shared hero actives, not clinical equivalence.