By Wishtrend Mandelic Acid Gentle Exfoliating Toner vs COSRX BHA Blackhead Power Liquid
A side-by-side comparison of two Korean exfoliators — ingredients, skin-type fit, size and live UK prices — to help you decide which to buy.
By Wishtrend
Mandelic Acid Gentle Exfoliating Toner
£17.08 delivered
£13.23 + £3.85 delivery · free over £50
Ships from overseas6–15 business days · Express £5.39, 4–8 business days
Compare all prices
COSRX
BHA Blackhead Power Liquid
£14.63 delivered
£10.78 + £3.85 delivery · free over £50
Ships from overseas6–15 business days · Express £5.39, 4–8 business days
Ships from UK · £28.90 delivered at MOIDA£25.00 + £3.90 delivery · free over £30 · 2–5 working days
Compare all prices| Price (from) | £13.23 | £10.78 |
|---|---|---|
| Category | Exfoliators | Exfoliators |
| Key ingredient | Mandelic Acid | BHA 4% (Betaine Salicylate) |
| Best for | dry, oily, combination, normal | oily, combination, normal |
| Targets | hydration, brightening, texture, exfoliation | acne, pores, texture |
| Size | 150ml | 100ml |
Which should you choose?
By Wishtrend Mandelic Acid Gentle Exfoliating Toner centres on Mandelic Acid, while COSRX BHA Blackhead Power Liquid leads with BHA 4% (Betaine Salicylate). Both work for oily, combination, normal skin, so it often comes down to texture, price and the active you want to prioritise. On price, COSRX BHA Blackhead Power Liquid is currently the better value — but prices change daily, so check both below.
Frequently asked questions
What is the difference between By Wishtrend Mandelic Acid Gentle Exfoliating Toner and COSRX BHA Blackhead Power Liquid?
Both are Korean exfoliators. By Wishtrend Mandelic Acid Gentle Exfoliating Toner is built around Mandelic Acid, while COSRX BHA Blackhead Power Liquid leads with BHA 4% (Betaine Salicylate). Both suit oily, combination, normal skin.
Which is cheaper, By Wishtrend Mandelic Acid Gentle Exfoliating Toner or COSRX BHA Blackhead Power Liquid?
COSRX BHA Blackhead Power Liquid is currently the cheaper of the two at around £10.78. We check both prices daily across the UK retailers we compare, and each one shows when it was last checked.
Can I use By Wishtrend Mandelic Acid Gentle Exfoliating Toner and COSRX BHA Blackhead Power Liquid together?
In most routines you can layer different product types, but two products of the same step (e.g. two exfoliators) 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 Korean exfoliators. Our ranked round-ups price-compare every option we rate for each skin type they suit, not just these two.