Korean skin care at Amazon is on sale, with my go-to essentials all under $20 ahead of Prime Big Deal Days. Shop a best-selling eye cream, a plumping collagen cream, and more shopper and writer-loved products from $14.

All of my favorites are under $20.

After nearly a decade testing beauty products for a living, I’m finding myself increasingly difficult to impress. That said, of the Korean skin care products I’ve tried, the overwhelming majority still excite me with all their glorious plumping, smoothing effects. Amazon is a wellspring of K-beauty goodies, many of which I’ve purchased on repeat—and many of which are currently on sale ahead of Prime Big Deal Days.

From water-light, heavy-hitting hydrating serums, to plumping creams packed with snail mucin, I’m stocking up on these seven Korean skin care essentials while they’re on sale and under $20. up to 50 percent off.

Korean Skin Care Deals at Amazon:

Cosrx Snail Mucin 92% Repair Cream, $16 (Originally $25) Medicube Collagen Jelly Cream, $20 (Originally $33) TirTir SOS Serum, $18 with coupon (Originally $35) Beauty of Joseon Revive Eye Serum, $14 (Originally $17) SeoulCeuticals 1% Korean Retinol Night Serum, $16 (Originally $20) Anua Peach Niacinamide Cream, $19 (Originally $28) Some By Mi Miracle Toner, $14 (Originally $22) 

Cosrx Snail Mucin 92% Repair Cream

$25 $16 at Amazon

A spinoff of the brand’s famed snail essence, this moisturizer version features its titular ingredient. ICYMI: Snail mucin is an antioxidant-rich, skin-smoothing hydrator that’s suitable for all skin types. This cream is a staple in my year-round routine thanks to its medium weight texture and instant plumping power. Plus, it layers beautifully beneath makeup, and gives my foundation an ultra-smooth appearance. I’m stocking up while it’s 38 percent off.

Medicube Collagen Jelly Cream

$33 $20 at Amazon

I knew I needed to get my hands on this anti-aging gel-cream after I read glowing shopper reviews professing its firming effects. The moisturizer has a lightweight, cooling consistency that gives skin a bouncy glow in seconds, and seems to tighten and depuff just as quickly. Niacinamide, a brightening, pore-refining B vitamin, tackles hyperpigmentation over time to deliver an even-toned glow.

TirTir SOS Serum

$35 $18 at Amazon

I apply this waterlight, layerable serum beneath my moisturizer to double down on hydration—particularly when my complexion looks lackluster or feels sensitized. As someone with perpetually parched skin, I appreciate its instant—and prolonged—quenching effect, provided by polyglutamic acid. The formula also features peptides, which plump sagginess by spurring the production of collagen—skin’s structural protein—over time.

Beauty of Joseon Revive Eye Serum

$17 $14 at Amazon

It seems I’m the only person on the planet who has yet to experience this highly rated anti-aging eye cream. An Amazon best-seller, the smoothing formula features a stronger alternative to most retinol forms, retinal. The vitamin A-derivative smooths fine lines under and around the eyes, while niacinamide brightens the shadow-prone area. One shopper saw “a big difference” in their “lines,” a reduction in dark circles, and noticed their “concealer goes on smoother” since using the product. 

Shop more Korean anti-aging products on sale at Amazon ahead of Prime Big Deal Days, below.

SeoulCeuticals 1% Korean Retinol Night Serum

$20 $16 at Amazon

Anua Peach Niacinamide Cream

$28 $19 at Amazon

Some By Mi Miracle Toner

$22 $14 at Amazon