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I’ve lost count of how many Korean skincare brands I’ve tested over the years. From cult classics to niche launches that barely make it beyond the Seoul underground, I’ve tried everything: ampoules, essences, toners, serums — you name it, I’ve put it on my face.

Of all the brands I’ve reviewed, medicube has been one of the few I keep coming back to. So when I saw its Salmon DNA PDRN Pink Collagen Jelly Gel Mask (four of them!) for less than $20 on Amazon, I didn’t hesitate.

At first, I thought it was a listing error. This mask is sold in a four-pack, which means each treatment comes out to under $5. That’s practically unheard of for so

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