Compared by the form of vitamin C, the stated concentration, packaging and price.
3 vitamin C serums sold in Australia
Dr. AltheaVitamin C Boosting SerumA vitamin C serum with 3-O-Ethyl Ascorbic Acid · concentration not stated, Ascorbic Acid · concentration not stated.$28.00 · 30 ml
PuritoPure Vitamin C SerumA vitamin C serum with Ascorbic Acid · concentration not stated.$28.00 · 60 ml
Beauty of JoseonLight On Serum Centella + Vita CThe Australian sales page confirms the product and variant but does not publish a complete ingredient list..$26.00 · 30 ml