COSRX Refresh AHA/BHA Vitamin C Booster Serum 30ml vs numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum (30ml / 1.01 fl oz)
COSRX Refresh AHA/BHA Vitamin C Booster Serum 30ml and numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum (30ml / 1.01 fl oz) share 13 parsed ingredients. Differences highlighted below.
Shared 13COSRX Refresh AHA/BHA Vitamin C Booster Serum 30ml only 8numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum (30ml / 1.01 fl oz) only 27
Permalink for this comparison →
Shared formula
27%
- Ingredients in every formula
- 13in both formulas
- Key actives unique to one formula
- 6unique actives
- Ingredient rows compared
- 48rows compared
From the parsed labels — rows on every label over all compared rows.
The formulas, row by row
48 ingredients across 2 labels| on 2+ labelsonly on this labelnot on this labelIngredient | ||
|---|---|---|
Basics | ||
| Type & size | Exfoliant · size not on the record | Exfoliant · size not on the record |
| Brand origin | Korean | Korean |
Offers | ||
| Where to buy | Not recorded | Not recorded |
Formula | ||
| Key activesdiffers | niacinamide, glycolic acid, panthenol, allantoin, sodium hyaluronate, ascorbyl glucoside, alpha-arbutin | glycolic acid, niacinamide, panthenol, sodium hyaluronate, hyaluronic acid, urea, ceramide np |
| Free of | fragrance-free, sulfate-free, alcohol-free, paraben-free, silicone-free | fragrance-free, sulfate-free, alcohol-free, paraben-free, silicone-free |
| Heads-updiffers | pregnancy caution · photosensitizing · fungal-acne triggerPore data not yet reviewed | photosensitizing · fungal-acne triggerPore data not yet reviewed |
Fit & community | ||
| Rating | No reviews yet | No reviews yet |
| Best for | Not recorded | Not recorded |
Data quality | ||
| Label coveragediffers | Fully parsed · 21 ingredients | Fully parsed · 40 ingredients |
Key actives · 6 | ||
allantoin | yes | no |
alpha-arbutin | yes | no |
ascorbyl glucoside | yes | no |
ceramide np | no | yes |
hyaluronic acid | no | yes |
urea | no | yes |
Rest of the labels · 29 | ||
benzyl glycol | no | yes |
beta-glucan | no | yes |
betaine salicylate | yes | no |
ceramide ap | no | yes |
ceramide as | no | yes |
ceramide eop | no | yes |
ceramide ns | no | yes |
cetearyl alcohol | no | yes |
cholesterol | no | yes |
diphenyl dimethicone | no | yes |
dipropylene glycol | no | yes |
ethylhexylglycerin | no | yes |
gluconolactone | no | yes |
hippophae rhamnoides water | yes | no |
hydrogenated lecithin | no | yes |
hydrolyzed glycosaminoglycans | no | yes |
hydrolyzed hyaluronic acid | no | yes |
hydroxyethyl urea | no | yes |
hylocereus undatus fruit extract | yes | no |
menthyl lactate | yes | no |
pentylene glycol | no | yes |
phytosphingosine | no | yes |
polyglyceryl-10 myristate | yes | no |
propanediol | no | yes |
sodium hyaluronate crosspolymer | no | yes |
sphingomonas ferment extract | no | yes |
stearic acid | no | yes |
triethylhexanoin | no | yes |
vitamin e | no | yes |
Rows come from parsed labels and live offers. Where a label isn’t fully captured, we say so instead of guessing.
The bottom line
Choose COSRX if you want Allantoin in the formula.
Choose numbuzin if you want Urea in the formula.
Both lines come from the parsed labels and the prices on this page — neither product is the reference, and neither is called the better one.
This is not medical advice.
Focus on an effect
People also compare
- COSRXRefresh AHA/BHA Vitamin C Booster Serum
- numbuzin[MEDI-PEEL] Melanon X Drop Gel Cream 50g
- COSRXRefresh AHA/BHA Vitamin C Daily Cream
Suggested from shared ingredients on the parsed labels — each pair opens as its own comparison.