Quick answer: the The Inkey List Niacinamide Serum is a budget stand-in for the Haruharu Wonder Black Rice Hyaluronic Serum — 99% active overlap sharing Hyaluronic Acid, Niacinamide. It also overlaps with 18 other picks below.
Pricier picks the Niacinamide Serum matches
Haruharu Wonder
99%
Active overlap
Pricier pickHyaluronic AcidNiacinamide
Why it holds up: shares the same hero actives — Hyaluronic Acid, Niacinamide — which is what drives results here.
Full ingredient analysis →See them side by side →Glow Recipe
99%
Active overlap
Pricier pickHyaluronic AcidNiacinamide
Why it holds up: shares the same hero actives — Hyaluronic Acid, Niacinamide — which is what drives results here.
Full ingredient analysis →See them side by side →85%
Active overlap
Pricier pickHyaluronic AcidNiacinamide
Why it holds up: shares the same hero actives — Hyaluronic Acid, Niacinamide — which is what drives results here.
Full ingredient analysis →See them side by side →85%
Active overlap
Pricier pickHyaluronic AcidNiacinamide
Why it holds up: shares the same hero actives — Hyaluronic Acid, Niacinamide — which is what drives results here.
Full ingredient analysis →See them side by side →85%
Active overlap
Pricier pickHyaluronic AcidNiacinamide
Why it holds up: shares the same hero actives — Hyaluronic Acid, Niacinamide — which is what drives results here.
Full ingredient analysis →See them side by side →Glow Recipe
85%
Active overlap
Pricier pickHyaluronic AcidNiacinamide
Why it holds up: shares the same hero actives — Hyaluronic Acid, Niacinamide — which is what drives results here.
Full ingredient analysis →See them side by side →Beauty of Joseon
77%
Active overlap
Pricier pickNiacinamide
Why it holds up: shares the same hero active — Niacinamide — which is what drives results here.
Full ingredient analysis →See them side by side →77%
Active overlap
Pricier pickHyaluronic Acid
Why it holds up: shares the same hero active — Hyaluronic Acid — which is what drives results here.
Full ingredient analysis →See them side by side →The Ordinary
77%
Active overlap
Pricier pickNiacinamide
Why it holds up: shares the same hero active — Niacinamide — which is what drives results here.
Full ingredient analysis →See them side by side →The Ordinary
70%
Active overlap
Pricier pickHyaluronic Acid
Why it holds up: shares the same hero active — Hyaluronic Acid — which is what drives results here.
Full ingredient analysis →See them side by side →The Inkey List
70%
Active overlap
Pricier pickHyaluronic Acid
Why it holds up: shares the same hero active — Hyaluronic Acid — which is what drives results here.
Full ingredient analysis →See them side by side →The Ordinary
70%
Active overlap
Pricier pickHyaluronic Acid
Why it holds up: shares the same hero active — Hyaluronic Acid — which is what drives results here.
Full ingredient analysis →See them side by side →The Inkey List
70%
Active overlap
Pricier pickHyaluronic Acid
Why it holds up: shares the same hero active — Hyaluronic Acid — which is what drives results here.
Full ingredient analysis →See them side by side →Neutrogena
70%
Active overlap
Pricier pickHyaluronic Acid
Why it holds up: shares the same hero active — Hyaluronic Acid — which is what drives results here.
Full ingredient analysis →See them side by side →66%
Active overlap
Pricier pickHyaluronic Acid
Why it holds up: shares the same hero active — Hyaluronic Acid — which is what drives results here.
Full ingredient analysis →See them side by side →Medik8
66%
Active overlap
Pricier pickHyaluronic Acid
Why it holds up: shares the same hero active — Hyaluronic Acid — which is what drives results here.
Full ingredient analysis →See them side by side →The Ordinary
66%
Active overlap
Pricier pickHyaluronic Acid
Why it holds up: shares the same hero active — Hyaluronic Acid — which is what drives results here.
Full ingredient analysis →See them side by side →66%
Active overlap
Pricier pickHyaluronic Acid
Why it holds up: shares the same hero active — Hyaluronic Acid — which is what drives results here.
Full ingredient analysis →See them side by side →First Aid Beauty
66%
Active overlap
Pricier pickHyaluronic Acid
Why it holds up: shares the same hero active — Hyaluronic Acid — which is what drives results here.
Full ingredient analysis →See them side by side →Every match above mirrors an existing dupe page verbatim — re-derived from the 19 comparisons where the Niacinamide Serum appears as an alternative. No invented data.
Common questions
Is the The Inkey List Niacinamide Serum a real dupe?
It overlaps on hero actives with 19 same-category products in our catalogue — most closely the Haruharu Wonder Black Rice Hyaluronic Serum at 99% active overlap. "Dupe" here means shared active ingredients, not an identical formula.
Does a higher overlap mean it is better?
No — overlap only measures shared hero actives. Base, supporting actives, texture and price still differ, so use the side-by-side compare for the full picture.
Educational information only — not medical advice. Overlap reflects shared hero actives, not clinical equivalence.