COSRX The Vitamin C 23 Serum Dupes & Cheaper Alternatives
What Reddit recommends instead — 33 products with similar benefits · Analyzed 61 threads · Updated September 16, 2026
Same active: vitamin C
Showing 6 of 17
Other vitamin C products Reddit recommends
Cheaper options
Showing 6 of 12 · prices updated daily
For Hyperpigmentation
For Brightening
For Dullness
More alternatives

6 shared traits·494 mentions
Minimalist centella formula soothes and calms redness effectively

6 shared traits·242 mentions
Multi-weight HA formula delivers quick, effective hydration

5 shared traits·182 mentions
Centella-dominant calming workhorse

The Ordinary
Hyaluronic Acid 2% + B54 shared traits·377 mentions
Budget-friendly humectant that layers well on damp skin

4 shared traits·321 mentions
Beta-glucan hydration punch

4 shared traits·176 mentions
Barrier-repairing with centella and probiotic ferments in a rich, creamy formula

Medicube
PDRN Pink Peptide Serum4 shared traits·70 mentions
Hydrates and helps repair the skin barrier effectively

Dr. Althea
Vitamin C Boosting Serum4 shared traits·34 mentions
Niacinamide plus vitamin C for brightening

Beauty of Joseon
Light On Serum : Centella + Vita C4 shared traits·25 mentions
Uses 10% stable, gentle ethyl ascorbic acid as vitamin C source
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