These days, Korean “K-beauty” dominates the skin care world. But don’t worry, you don’t have to travel to try out the luxurious skin care products and techniques for yourself. While there are so many great products to choose from, TikTok users and HuffPost readers alike go particularly wild for the Bio-PDRN Caffeine Face Shot serum, a vegan alternative to a typically salmon-derived product, from the Korean brand Iope.
Beauty TikToker and self-proclaimed K-beauty enthusiast, Ashley Mixon, calls the serum “filler in a bottle,” “lifting,” and a “hero product” that’s hard to top. And while it usually goes for a pricy $50, you can currently snag it for 30% off. According to our price trackers, this product hasn’t been this low since the holidays! Discounts on this smoothing serum never last long, so grab one while you can.
The secret is in the entirely plant-based formula.
In addition to Mixon, many reviewers say this serum has made their skin smoother, helped improve acne, reduced the appearance of fine lines and even become a replacement for Botox. (Of course, dermatologists say no at-home treatment will be as effective as Botox, but if you hate needles, this serum could be a solid option.)
Mixon and the brand attribute these kinds of results to an ingredient called PDRN, an anti-inflammatory, tissue-repairing proprietary drug that works to improve your skin’s overall appearance and firmness. While traditional PDRN is extracted from the sperm cells of salmon (and sometimes injected into the skin), Iope’s topical version is developed from plants, meaning no needles or fish fluids needed.
In addition to plant-powered PDRN, the serum contains a recognizable combination of ingredients. You’ll see niacinamide, a versatile antioxidant that many swear by for everything from brightening skin to managing redness, and probiotics, an unlikely ingredient that dermatologists have previously told HuffPost can do wonders for keeping skin healthy and strong.
(Note: HuffPost reached out to Mixon and found she does not receive compensation directly from the brand, but does from her affiliate link.)
Wondering what caffeine is doing in your skin care and not your latte?
There is some evidence to support that topical applications of caffeine may aid in reducing the appearance of wrinkles caused by sun damage, thanks to its antioxidant properties.
“[This serum] contains 20,000 ppm (parts per million) of caffeine, which is one-eighteenth the size of collagen,” Mixon told HuffPost via email. “So yes, it does penetrate into the skin!”
To use the serum, the brand says to apply three to four drops after your toner and before creams and moisturizers. Mixon adds that it can be used day or night and doesn’t interfere with other products or other active ingredients that you might be using.
Ready to try this serum for yourself, for the best price of the year? Grab one on Amazon to see what all the hype is about for yourself.
Read more promising reviews of Amazon’s beloved anti-aging serum and grab one for yourself at a wildly discounted price.
“I am getting older like everyone else. Then trauma happens and you age more rapidly. My marionette lines were getting deep and wider. Comes Prime Day sales. I had this in my cart for a long time, but now it had a fabulous sale. I swear I noticed after first day! I photo documented one week and by day 7 you wouldn’t have believed a product really does what it claims! But I had so many people say “something different about you, I just can’t figure it out” so I told them what I did. I had 3 friends order it right away and they are hooked too! So next Prime Day or on sale, it’s in my cart…I will have this product for the rest of my journey until I go to next journey!
You won’t be sorry!” — Nancy J Olson“I’ve been using this serum for a few weeks, and I can honestly say it feels like a mini spa treatment in a bottle. The texture is silky and absorbs quickly without feeling sticky, which I really appreciate.” — Linda
“I’ve been using the Iope Bio PDRN Caffeine Shot Serum for a few weeks, and I’m impressed with the results. The serum is lightweight, absorbs quickly, and doesn’t leave any sticky residue perfect for morning routines under makeup.
It really helps reduce puffiness and makes my skin look more awake and refreshed. I also notice a subtle firming effect around my eyes and a smoother overall texture on my face. The dropper makes it easy to apply the right amount without waste, and a little goes a long way.
This serum feels like a spa treatment in a bottle it’s gentle, effective, and has become a permanent part of my skincare routine. If you’re looking for a caffeine boost for your skin, this is a must-try!” — Stephanie R
Looking for more skin care upgrades? Check out these recommended K-beauty products from HuffPost contributor Shawna Hudson.
This snail mucin essence
Promising review: “10/10 Recommend. Super moisturizing especially when combined with the COSRX snail mucin cream. Has a thinner consistency so can run a little but stays for a long time on skin. Makes my skin really soft and smooth with an added glow as well. Bottle is a decent size and is pretty durable.” — Haylee
This rice water- and ceramide-rich serum
Promising review: “Earlier this year, I had to start using benzoyl peroxide to get my acne under control, which made my oily skin red, irritated, and flaky. I needed something super hydrating and soothing to counteract it, landed on this serum, and I’m so glad I did. It’s thick but not sticky, super hydrating, and calmed my skin right down. I’m using it 2x daily along with a peptide serum, very happy with the results. This has earned a permanent spot in my skincare routine.” — Ulta customer
This hydrating peptide serum
Promising review: “This serum has such a soothing scent, I love it. I try to use this serum as the first step of skincare since it is NOT sticky and it feels like it preps my skin so well for any additional skincare afterwards including cream, suncream, makeup, etc. It is not heavy at all.
Even though it can be layered, I never really need to do that since it’s moisturizing enough after just one layer of it. Best serum for any season! It feels light yet powerful and goes a long way. I would buy it again.” — Amazon customer
This hydrating essence-toner
Promising review: “This toner is a must during the winter. It [has] a gel like texture and helps lock in the moisture. Not much of a smell so it’s nice for sensitive skin and it also doesn’t leave my face greasy. The bottle is a good size too.” — Nora
This noni-rich ampoule that gives reviewers a “natural glow”
Promising review: “I’ve been using the Celimax Noni Ampoule for a couple of weeks, and my skin has improved dramatically. It feels softer, hydrated, and has a natural glow that I haven’t achieved with other products. I love that it’s lightweight, non-sticky, and absorbs quickly. I also notice that my dry areas feel much calmer. Definitely a must-have in my skincare routine.” — Camila
This probiotic-rich ampoule
Promising review: “I’ve been using the Madagascar Probio‑Cica Intensive Ampoule and it has quickly become my go‑to skincare essential. My skin used to be reactive and easily irritated, but this ampoule helped calm everything down while strengthening my barrier. The texture is silky and absorbs fast, leaving my face hydrated without heaviness or stickiness. I appreciate that it’s fragrance‑free, which makes it gentle enough for daily use. After consistent application, my complexion looks smoother, redness has faded, and my skin feels healthier overall. Even when I get the occasional breakout, they’re less intense than before. The packaging feels premium, and the dropper makes it easy to apply.” — Ulta customer
This propolis-rich glow serum
Promising review: “I have been using this for over a year. My skin is sensitive and I have rosacea, but also dry at times. This hydrates, smoothes, and improves the look of my skin one hundred times. It is lightweight and extremely effective. I love it so much.” — Amazon customer
This hydrating and exfoliating essence
Promising review: “I absolutely love this essence because it’s extremely gentle and hydrating on the skin along with giving your skin a little bit of an exfoliation as well! It definitely smooths your skin texture and brightens your skin complexion and not to mention that it absorbs quickly without leaving you feeling sticky. It’s perfect to use in your everyday skin care routine or as a gentle exfoliation a few times a week. This is a definitely a skin care staple that i’ll keep repurchasing again and again!” — Tracy Greene
The Real Deal: We use deal trackers and commerce experience to sift through “fake” hike-and-drop deals and other deceptive sales tactics. Products will usually be rated at least 4 stars with a minimum 15% discount. (And when there’s an exception, we’ll tell you why.)








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