Compared by the stated niacinamide percentage, what it is paired with, packaging and price.
3 niacinamide serums sold in Australia
AXIS-YDark Spot Correcting Glow SerumA niacinamide serum with 5% Niacinamide, plus Squalane · concentration not stated.$24.00 · 50 ml
COSRXThe Niacinamide 15 SerumA niacinamide serum with 15% Niacinamide, plus Zinc PCA · concentration not stated, Acetyl Glucosamine · concentration not stated.$33.00 · 20 g
JumisoNiacinamide 20 SerumA niacinamide serum with 20% Niacinamide, plus Tranexamic Acid · concentration not stated, Glutathione · concentration not stated.$26.00 · 40 ml