ISOI Blemish Care Up Serum vs Numbuzin No.5+ Vitamin-Niacinamide Concentrated Serum
A side-by-side comparison of two Korean serums — ingredients, skin-type fit, size and live UK prices — to help you decide which to buy.
Numbuzin
No.5+ Vitamin-Niacinamide Concentrated Serum
From £15.37
| Price (from) | — | £15.37 |
|---|---|---|
| Category | Serums | Serums |
| Key ingredient | Bulgarian Rose Oil | Vitamin Complex + Niacinamide |
| Best for | normal, combination, oily, dull | dull, normal, combination, oily |
| Targets | brightening, pigmentation, blemish | brightening, pores, oil-control |
| Size | 35ml | 30ml |
| Rating | 4.8 / 5 | 4.8 / 5 |
Which should you choose?
ISOI Blemish Care Up Serum centres on Bulgarian Rose Oil, while Numbuzin No.5+ Vitamin-Niacinamide Concentrated Serum leads with Vitamin Complex + Niacinamide. Both work for normal, combination, oily, dull skin, so it often comes down to texture, price and the active you want to prioritise. Check both live prices below before deciding.
Frequently asked questions
What is the difference between ISOI Blemish Care Up Serum and Numbuzin No.5+ Vitamin-Niacinamide Concentrated Serum?
Both are Korean serums. ISOI Blemish Care Up Serum is built around Bulgarian Rose Oil, while Numbuzin No.5+ Vitamin-Niacinamide Concentrated Serum leads with Vitamin Complex + Niacinamide. Both suit normal, combination, oily, dull skin.
Which is cheaper, ISOI Blemish Care Up Serum or Numbuzin No.5+ Vitamin-Niacinamide Concentrated Serum?
We price-compare both across LookFantastic, YesStyle, Olive Young and other UK retailers daily — see the live prices above.
Can I use ISOI Blemish Care Up Serum and Numbuzin No.5+ Vitamin-Niacinamide Concentrated Serum together?
In most routines you can layer different product types, but two products of the same step (e.g. two serums) are usually used as alternatives rather than together. Patch-test new actives and introduce one at a time.