If you follow the K-beauty beat as I do, you may already know the Sulwhasoo Gentle Cleansing Oil as one of those skincare standout products: luxurious in feel, and remarkably effective at melting away every trace of makeup, sunscreen, and city grime.

What you may not yet know is that this cult-favorite is currently 15% off on Amazon, just ahead of the October Prime Day rush, which takes place Tuesday, Oct. 7 at 12:01 a.m. PT through Wednesday, Oct. 8.

A rare price drop for a premium product, and one that’s definitely worth noting if you’ve been curious about trying it — or if, like me, it’s already earned a permanent place on your bathroom shelf.

As someone who’s spent years testing Korean skincare and has skin that reacts to just about everything, I approach new products with cautious optimism. Oil cleansers are particularly tricky; many either leave behind a greasy film or cleanse too aggressively. The Sulwhasoo Gentle Cleansing Oil, however, is formulated beautifully, gently cleansing without the slick residue.

It works for my sensitive skin, not against it. After repeated use, it hasn’t caused breakouts, dryness, or irritation, which is more than I can say for most oil cleansers at this price point (or higher).

The formula features a blend of traditional Korean herbal oils, including nourishing apricot kernel oil. It’s designed to lift makeup and dissolve pore-clogging debris, all while leaving the skin clear and comfortable — not tight or over-cleansed.

It’s silky and transforms into a milky emulsion the moment it hits water, rinsing away easily with no residue. There’s no strong fragrance, no sting, and no post-cleanse dryness. It’s skincare that feels quietly indulgent but completely reliable. Consider it a skin-nourishing, lovely steal ahead of Prime Day.

In terms of use, I’ve found the key is to keep the ritual gentle and deliberate. I begin with dry hands and a dry face, dispensing about two pumps of oil into my palms and smoothing it across my skin. I massage it in slow, circular motions, paying extra attention to the areas where I’ve layered on sunscreen or makeup — along the cheeks, jawline, and around the eyes.

After about 30 to 45 seconds, I add a splash of lukewarm water to my fingertips and keep massaging as the oil transforms into a light, milky texture. This emulsification step is essential; it’s what lifts the impurities and prepares the oil to rinse cleanly away. Then I rinse thoroughly and, on heavier days, follow with a second cleanser, usually a mild foam or gel. But even on lighter days, this cleanser on its own leaves my skin feeling soft, refreshed, and totally balanced.

There’s a quiet confidence in this product that I appreciate. It doesn’t shout about being the most high-tech or trend-forward, but it performs with the kind of precision that comes from decades of thoughtful formulation. Sulwhasoo is known for combining time-honored herbal wisdom with modern cosmetic science, and that balance really shows here.

It’s not trying to do everything; it’s trying to do one thing really well — and it succeeds.

With the 15% discount currently live on Amazon, this is a smart moment to invest in a product that truly respects your skin. The original price can be a bit of a hurdle, but with this deal, you’re getting luxury-level performance at a more forgiving cost. It’s especially ideal if you’ve been hesitant to splurge on Sulwhasoo before or if your current cleanser isn’t quite cutting it as we head into colder, drier months.

This cleanser has quietly earned its place in my skincare routine. Not because it promises miracle transformations, but because it delivers consistently, gently and beautifully. It’s rare to find something that feels this good and performs this well, especially when your skin is prone to reacting at the slightest shift. If your skincare goals include clarity, balance and a little bit of everyday luxury, this is worth trying, especially while it’s an early deal.

This annual Amazon sale — which we like to call October Prime Day — is similar to the well-known July event: it’s a two-day blow out shopping event with deep discounts on bestsellers and everyday essentials. But the timing of this sale makes all the difference; shoppers can also score pre-Black Friday deals on top-rated toys and sell-out-risk gifts before the holiday rush.

Amazon’s fall Prime Day event only lasts two days. This sale starts on Tuesday October 7 at 12:01 a.m. PT and runs through Wednesday October 8 at 11:59 p.m. PT.

Prime Big Deal Days 2025 ends on Wednesday October 8 at 11:59 p.m. PT, so east-coasters have until about 3 a.m. on October 9 their time to shop the deals.

Prime Big Deal Days is a member-exclusive sale event. Interested shoppers can grab a 30-day free trial to try Prime, and its many benefits, with no strings attached.

Already familiar with July Prime Day? Then you’ll love Amazon’s fall version! Like its summer spectacular sale, Amazon’s Prime Big Deal Days offers major discounts for 48 hours, but with a bigger focus on holiday gifts, toys and tech to shop ahead of Black Friday and Cyber Monday.

From reporting on Amazon sales for years, we can tell you for certain that October Prime Day is the ideal period to stock up on household essentials, score great deals on gift-worthy items and toys, take advantage of Black Friday-level discounts on tech and appliances, refill your skincare empties, and comb through the massive catalog of Amazon best-sellers.

We certainly think so! October Prime Day is a great chance to score Black Friday-worthy deals on thousands of best-sellers, including everything from big-ticket tech to Post reader-favorite trash bags. Our team diligently sorts through all the offers to find you the very best items to grab on sale.

Already wondering when Amazon’s next Prime Day is? Prime Day takes place in July each year, so it’s safe to assume it will take place in mid-July 2026 — similar to previous years. Can’t wait to shop more Amazon deals? Look out for Amazon’s Black Friday sales to kick off the holiday season in November.

Don’t miss Post Wanted’s around-the-clock coverage. Click here to find all of the best deals.

This article was written by Victoria Giardina, New York Post Commerce Journalist & Content Strategist, who has spent countless hours researching, testing hundreds of products and comparing the latest makeup, skincare, hair and beauty items and trends to determine what’s truly worth your hard-earned cash. She evaluates formulas, textures, ingredients and more, in addition to consulting medical and industry experts. Some of Victoria’s latest conquests include testing the best vitamin C serums on the market, and a rinse-and-repeat review of the best shampoos of 2025. Victoria, who received a beauty industry essentials certification from the Fashion Institute of Technology, has been creating shopping guides for the New York Post since 2021 and previously held positions at Insider Reviews and CNN Underscored.