Anua Niacinamide 10% + TXA 4% Serum vs ISOI Blemish Care Up 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.
| Price (from) | £15.97 | £18.27 |
|---|---|---|
| Category | Serums | Serums |
| Key ingredient | Niacinamide + Tranexamic Acid | Bulgarian Rose Oil |
| Best for | oily, combination, dull, normal | normal, combination, oily, dull |
| Targets | brightening, pores, oil-control, acne | brightening, pigmentation, blemish |
| Size | 30ml | 35ml |
| Rating | 4.8 / 5 | 4.8 / 5 |
Which should you choose?
Anua Niacinamide 10% + TXA 4% Serum centres on Niacinamide + Tranexamic Acid, while ISOI Blemish Care Up Serum leads with Bulgarian Rose Oil. Both work for oily, combination, dull, normal skin, so it often comes down to texture, price and the active you want to prioritise. On price, Anua Niacinamide 10% + TXA 4% Serum is currently the better value — but prices change daily, so check both live below.
Frequently asked questions
What is the difference between Anua Niacinamide 10% + TXA 4% Serum and ISOI Blemish Care Up Serum?
Both are Korean serums. Anua Niacinamide 10% + TXA 4% Serum is built around Niacinamide + Tranexamic Acid, while ISOI Blemish Care Up Serum leads with Bulgarian Rose Oil. Both suit oily, combination, dull, normal skin.
Which is cheaper, Anua Niacinamide 10% + TXA 4% Serum or ISOI Blemish Care Up Serum?
Anua Niacinamide 10% + TXA 4% Serum is currently the cheaper of the two at around £15.97. We price-compare both daily across UK retailers, so check the live prices above before buying.
Can I use Anua Niacinamide 10% + TXA 4% Serum and ISOI Blemish Care Up 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.
Still deciding? See the full ranking
Both of these are serums for oily and combination and dull and normal skin. Our ranked round-ups price-compare every option we rate, not just these two.

