Cheaper alternatives
Cheaper alternatives to COSRX The Vitamin C 13 Serum with Super Vitamin E & Hyaluronic Acid
Cheaper picks that share The Vitamin C 13 Serum with Super Vitamin E & Hyaluronic Acid’s key ingredient (Hyaluronic acid) — from authenticity-verified retailers, ranked by how closely they match and by price. Same active, lower price; not identical formulas.
Prices checked
The original
COSRX The Vitamin C 13 Serum with Super Vitamin E & Hyaluronic Acid
Key active: Hyaluronic acid
Best price today
$0.76/ml
$15.25 for the bottle
3 cheaper alternatives
What's a cheaper alternative to COSRX The Vitamin C 13 Serum with Super Vitamin E & Hyaluronic Acid?
numbuzin No.5 Glutathione Vitamin Serum — $0.50/ml against $0.76/ml for the original (about 34% less per ml). Same product format, and it shares 2 of this product’s actives: Vitamin C and Hyaluronic acid. Shared actives and a comparable format — not an identical formula. The base, supporting ingredients and texture differ.
Frequently asked
What's the best cheaper alternative to COSRX The Vitamin C 13 Serum with Super Vitamin E & Hyaluronic Acid?
numbuzin No.5 Glutathione Vitamin Serum — $0.50/ml against $0.76/ml for the COSRX original. It's the same product format and shares 2 actives (Vitamin C and Hyaluronic acid), which is why we compare the two at all.
What is a cheaper alternative to COSRX The Vitamin C 13 Serum with Super Vitamin E & Hyaluronic Acid?
numbuzin No.5 Glutathione Vitamin Serum, at $0.50/ml against $0.76/ml for the original. We only compare products of the same format that share at least two actives (Vitamin C and Hyaluronic acid). A dupe shares actives; it is not an identical product.
Is numbuzin No.5 Glutathione Vitamin Serum as good as COSRX The Vitamin C 13 Serum with Super Vitamin E & Hyaluronic Acid?
It's the same format, shares 2 actives (Vitamin C and Hyaluronic acid), and comes from an authenticity-verified retailer — but the base, supporting ingredients and texture differ. On price per ml it's meaningfully cheaper; whether it feels the same on your skin is a personal call.
How much cheaper is numbuzin No.5 Glutathione Vitamin Serum than COSRX The Vitamin C 13 Serum with Super Vitamin E & Hyaluronic Acid?
$0.50/ml against $0.76/ml — about 34% less per ml, not per bottle, so different sizes are compared honestly. Prices move; each product page carries the date its price was last checked.
Do these dupes really match The Vitamin C 13 Serum with Super Vitamin E & Hyaluronic Acid?
They match on the two things we can verify: the product format is the same, and each one shares at least two of this product's actives. We compare them by price per ml or per gram, and suppress any pair with a gap wide enough to suggest a data error. They are not identical formulas — the base and supporting cast differ.
Are these alternatives authentic?
Yes. Every listing shown here passes our authenticity gate — we only compare offers from verified retailers with a documented supply chain (brand authorization, official distributor, or authorized reseller).