This PDRN Serum Does Pore Care Differently

This PDRN Serum Does Pore Care Differently

Get to know our silky serum powered by Red Bean PDRN™ + peptide.

There are two kind of pore products out there: the ones that make your skin look good for approximately one minute before everything gets tight, dry, and irritated…and the ones that actually help your skin look balanced and stay that way.

We were interested in making that second kind. That’s why, when developing our new PDRN serum, we didn’t focus on aggressive exfoliation or potentially harsh smoothing. Instead, we looked at how to support smoother-looking skin in a gentler, more barrier-friendly way.

The answer ended up being one of Korean skincare’s most talked-about ingredients: PDRN. If you’ve been wondering “What is PDRN skincare exactly?” or looking up what PDRN is good for, here’s the short version. This popular ingredient is known for supporting healthy-looking skin renewal, helping skin appear smoother, plumper, and more refreshed over time.

You may already know that PDRN Korean skincare products focus on glow and elasticity, but did you know they can also support gentle pore care? Meet Pore Firming Serum, our silky PDRN peptide serum powered by exclusive Red Bean PDRN™. It’s designed to visibly refine the look of pores while keeping skin hydrated and comfortable, so it’s pore care that feels a whole lot more like skincare. Find out how it works, why it’s special, and how to use it in your routine below.

Why PDRN Is the Pore Care Ingredient You’ll Love

If you’ve been deep in skincare TikTok lately, chances are you’ve heard people talking about PDRN. But you might not know what it actually is.

Typically, PDRN is an ingredient derived from DNA fragments (you’ve probably seen a lot with salmon DNA), that’s known for supporting healthy-looking skin renewal. In PDRN Korean skincare, it’s become especially popular for helping skin look smoother, plumper, and more refreshed overall.

Most conversations around this powerhouse ingredient focus on glow or elasticity, but we wanted to explore something different. When skin loses elasticity over time, the areas surrounding pores can begin to look less firm, making pores appear more noticeable. That’s where our approach comes in.

Instead of relying on aggressive exfoliation or stripping ingredients, we focused on creating a pore refining serum that supports smoother-looking skin while staying gentle on the moisture barrier. The result is Pore Firming Serum: a silky, lightweight formula that targets the look of large pores while helping skin feel hydrated, balanced, and comfortable.

Get to Know Red Bean PDRN™: Our Vegan Take on PDRN

At the heart of this formula is BOJ-exclusive Red Bean PDRN™, a vegan alternative to traditional PDRN. Rather than using salmon-derived ingredients, this plant-based version is made from purified red bean DNA fragments. Inspired by the long history of red bean in Korean skincare, this ingredient was designed to support renewal while helping skin appear smoother and more refined.

We knew red bean was the perfect Hanbang ingredient to use. Our community already knows and loves the balancing feeling of our red bean line, especially for skin that’s feeling oily, congested, or textured. Bringing that philosophy into a PDRN serum felt like the natural next step.

To help support the smoothing and plumping effects of the formula, we paired Red Bean PDRN™ with a low-molecular-weight peptide. Peptides are known for supporting skin that looks firmer and more resilient over time, so they’re a perfect companion for PDRN. This combo makes Pore Firming Serum feel different from your typical pore care serum.

Of course, we also have the science to back it up. We put Pore Firming Serum through four different pore tests, and these were the results: 21.47% temporary improvement in pore count, 23.09% temporary improvement in pore volume, 25.79% temporary improvement in pore area, and 15.22% temporary improvement in pore depth*. But this formula doesn’t just work on your pores; it refines your overall complexion. Pore Firming Serum gives a 13% improvement in skin texture, a 24.38% improvement in skin temperature (cooling effect), and a 12.21x improvement in the appearance of skin puffiness*. Put them together, and you’ve got that smooth, glass-skin look.

Instead of leaving skin stripped, dry, or tight, the formula feels hydrating and silky from the moment you apply it. It layers perfectly with the rest of your Korean skincare routine (we’ll spill on your new ritual below!).

*According to a 4-week clinical study of 21 subjects.

How to Use Pore Firming Serum in Your Skincare Routine

We know you’re ready to use your new favorite pore serum. Here’s what to do. After cleansing, apply a few drops of Pore Firming Serum to clean skin and gently pat until absorbed. The silky texture sinks in quickly, making it easy to layer with the rest of your routine both morning and night.

Our red bean line pairs perfectly with this serum. For a full red bean ritual, start with Red Bean Refreshing Pore Mask and relax while kaolin clay and red bean extract gently exfoliate and help to absorb excess serum. After 20 minutes, wash the mask off while gently massaging skin. Then, follow with Pore Firming Serum for balancing, gentle pore care. Finish with Red Bean Water Gel for ultra-lightweight hydration that helps balance sebum levels throughout the day.

Answering Your Questions About BOJ Pore Firming Serum

We’ve covered a lot. But just in case, here’s your most common questions about Pore Firming Serum, answered.

Q. What skin types is Pore Firming Serum best for?
All skin types can benefit from our gentle Pore Firming Serum, but it's especially ideal for congested complexions and anyone who wants to target the look of large pores. It's also clinically proven to be noncomedogenic** and hypoallergenic***, making it a great pick for acne-prone and sensitive skin.

**According to a 4-week clinical study of 23 subjects.
***According to a 5-week clinical study of 55 subjects.

Q. Can I use Pore Firming Serum with retinol, acids, and vitamin C?
Pore Firming Serum contains gentle, barrier-friendly ingredients, so you can support its visibly smoothing effects with ingredients like retinol, AHA/BHA, or vitamin C. We recommend sticking to just one other active ingredient in your routine so you don't overwhelm your skin.

Q. How long will it take to see results with Pore Firming Serum?
That depends on your individual skin type and the rest of your routine! We recommend using Pore Firming Serum consistently for at least a month for best results. It's clinically proven to improve skin texture and temporarily improve the volume, count, area, and depth of pores after 4 weeks of regular use.

Q. What other skincare products should I use with Pore Firming Serum?
Pore Firming Serum pairs perfectly with our other red bean essentials like Red Bean Refreshing Pore Mask and Red Bean Water Gel. We definitely recommend using them all together for a complete pore care routine.

Q. Can I use Pore Firming Serum both day and night?
Yes! Use Pore Firming Serum in both your morning and evening skincare routines.

Q. What is Red Bean PDRN™?
This BOJ-exclusive ingredient is a vegan PDRN extracted from red beans and the hero behind our pore-targeting, skin-plumping formula. Like traditional PDRN derived from salmon DNA, it supports skin renewal and helps congested complexions appear smoother. When applied to areas with large pores, it helps instantly refine their appearance and create a smoother-looking base without relying on barrier-compromising ingredients. Used on the rest of your face, it supports healthy-looking renewal and skin that looks silky-smooth overall.

Pore care has a reputation for being harsh, but Pore Firming Serum is your reminder that targeting pores doesn’t have to disrupt your skin’s balance. With vegan Red Bean PDRN™, peptide, and a silky texture that feels good from the very first layer, this is pore care the BOJ way. Ready to experience our Hanbang take on PDRN?

Reset With Your Red Bean Ritual