Dermatologist: "I Need to Be Honest About What's Really Causing Your Under-Eye Bags and Hollowing"

Written by Dr. Lauren Chen, Board-Certified Dermatologist, MD |

Board-certified dermatologist reveals why every eye cream you've tried has failed - and the Korean skin science breakthrough that's finally changing what she tells her patients

[Hero Image – Dermatologist & PDRN Serum]
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I'm a dermatologist and I need to be honest with you.

Almost everything you've been told about fixing the hollow, puffy skin under your eyes is wrong.

The bags. The hollowing. The sunken look. All of it.

And I'm partly to blame.

Every week I sit across from women who have spent hundreds of dollars. Sometimes thousands. On eye creams, serums, rollers, and masks that were never going to work.

And for years, the only real fix I could offer them was filler injections or sending them to a surgeon.

That bothered me.

Because filler doesn't actually fix anything.

It covers it up.

And surgery? That's a big deal. Too big for most people.

There had to be something in between.

A year and a half ago, I found it.

And it completely changed what I tell my patients to use.

Here's What Skincare Companies Don't Want You to Know

[Image – Under-Eye Skin Cross Section]

Let me explain something most skincare brands will never tell you. Because if you knew this, you'd stop buying their products.

The skin under your eyes is thinner than a sheet of paper.

It is the thinnest skin on your entire body.

And every problem you can see under your eyes. The bags. The hollowing. The sunken look. All of it starts deep inside the skin. Not on top of it.

Puffiness happens when fluid gets trapped because the skin and tissue underneath have gotten weak. They can't hold things in place anymore.

Hollowing happens when your body stops making enough collagen and the supportive tissue beneath the skin breaks down. Collagen is the stuff that keeps skin thick and full. As you get older, your body makes less and less of it. The skin thins out. The fat pads shrink. And the area under your eyes starts to sink inward, creating that tired, sunken look even when you've slept eight hours.

Here's the problem with every eye cream you've ever used.

They only touch the surface.

They make the top layer feel soft for a few hours. Then it wears off. And your under eyes look exactly the same.

The cream can't get down to the deeper layer where the real damage is happening. The ingredients are just too big to pass through.

That's not a sales pitch. That's just how skin works.

I've told patients this for years. And every time, I watched their faces fall.

Because the only other options I had were expensive and painful.

Let Me Be Straight About Filler, Too.

[Image – Filler Injection Comparison]

Filler might look good right after you get it done.

But the skin under your eyes is so thin and sensitive that things go wrong more often than people think.

Over time, filler moves around. It breaks down unevenly. You start seeing little bumps. Swelling that looks worse than what you started with. A puffy look that just doesn't sit right on your face.

I've seen patients come back crying because their smile felt wrong. Like the filler was bunching up under their skin.

And even when filler goes perfectly? It still doesn't fix the real problem.

Your body is still making less collagen. Your skin is still getting thinner. The supportive tissue is still breaking down. The deeper issues are still getting worse every month.

Filler fills a space. That's all it does.

It doesn't heal anything.

What Korean Skin Doctors Figured Out Years Ago

[Image – Korean Dermatology Lab]

About a year and a half ago, I started looking at what skin doctors in South Korea had been doing for a long time.

They'd been using something called PDRN. That stands for a really long science word. You don't need to remember it. Here's what matters.

PDRN is a tiny piece of DNA that comes from salmon. It works so well with human skin that it turns on your body's own repair system.

Let me explain why it works when nothing else has. Because I think you deserve to understand this.

PDRN does three things at the same time.

First, it calms down swelling. That puffiness that never seems to go away? That's inflammation. PDRN fights it deep inside the skin where it starts.

Second, it wakes up your skin's builder cells. Your skin has tiny worker cells whose whole job is to make collagen. The stuff that keeps skin thick and full. As you get older, these workers slow way down. They take breaks. They build less. PDRN is like an alarm clock for them. It tells them to get back to work. And when they do, your body starts making new collagen again. The tissue under your eyes gets thicker. Stronger. It starts to fill back in from the inside.

Third, it gets more blood flowing to the area. Better blood flow means more oxygen and good stuff reaching that thin skin under your eyes. When the skin gets thicker and the supportive tissue rebuilds, the hollow look fades. Not because you're covering it up. Because the skin and tissue underneath are actually restoring volume from within.

That's not moisturizing. That's actually healing.

And that's why Korean doctors were getting results that American eye creams couldn't come close to.

But Here's the Catch.

[Image – PDRN Product Comparison]

PDRN got really popular really fast.

And just like every other trend, tons of brands rushed to add it to their products.

Most of them are a waste of money. Here's why.

Problem #1: Barely any PDRN in the bottle.

Most companies put just a tiny sprinkle of PDRN in their formula. Just enough to put it on the label. But nowhere near enough to actually wake up those builder cells. It's like putting one drop of coffee in a cup of hot water and calling it espresso.

Problem #2: It can't get through the skin.

Even if a product had enough PDRN, the pieces are usually too big to pass through that super thin under eye skin. They just sit on top. They never reach the deeper layer where the real work needs to happen.

So you have two problems. Not enough PDRN. And no way to deliver it.

Now, skin doctors already knew of one way to fix the delivery problem. It's called microneedling.

Microneedling is when you use a small roller or pen covered in tiny needles. You roll it across your skin and the needles poke hundreds of microscopic little holes. These holes act like open doors. They let ingredients pass through the surface and reach the deeper layer of skin where they can actually do their job.

That's how Korean clinics get PDRN to work so well. They use needles to get it past the surface and down to where the builder cells live.

But here's the problem.

Try doing that under your eyes.

Remember, the skin under your eyes is thinner than paper. It's the most sensitive skin on your entire body. When you roll needles across it, you get redness. Swelling. Bruising. Sometimes for days.

Most women try microneedling under their eyes once and never do it again. It's just too harsh for that area.

So you're stuck. You need microneedling for PDRN to work. But microneedling is too painful and risky for the under eye area.

That's a dead end.

Until one company figured out how to get around it.

What Zivvi Did That No One Else Has

[Image – Zivvi PDRN Serum Product Shot]

This is why I started telling my patients about Zivvi.

They solved both problems at once.

First, they put a real amount of PDRN in the formula. Not a label trick. Not a tiny sprinkle. Enough to actually trigger the repair process the research talks about.

Second, and this is the part that really got my attention, they built the microneedling into the serum itself.

The formula contains natural sponge spicules, thousands of tiny dissolving crystals mixed right into the serum. You can't see them. But they're there.

When you put the serum on and gently press it into your skin, these spicules create microscopic little channels. Tiny open doorways. The exact same kind of pathways that a microneedle roller would create.

But without the pain. Without the redness. Without the bruising. Without two days of swollen, angry skin.

Then the PDRN travels through those tiny channels and gets down to the deeper layer of skin where the builder cells live.

The spicules dissolve completely. They disappear. There's nothing harsh left behind. No irritation. No damage. Nothing that would upset that super delicate under eye skin.

That's what makes this different from every other PDRN product out there. Other serums might have PDRN in them, but it just sits on top of your skin doing nothing. Zivvi actually opens the door and lets the PDRN walk through.

It's the only product I've seen that answers both questions at once:

"Is there enough PDRN?" Yes.

"Can it actually get where it needs to go?" Yes.

That's why I'm comfortable telling patients to use it right under their eyes. The one spot where most treatments are either too weak to help or too harsh to use safely.

Now Let Me Tell You Exactly What's in It

[Image – Ingredient Breakdown]

The product is called the Zivvi PDRN Facial Serum. It uses what they call the Dermal Renewal Delivery System™. That's the spicule technology I just explained.

It's made in Korea. Clinic grade PDRN is the primary active ingredient. Not one ingredient buried in a list of twenty. The main thing. The whole formula is built around getting it to the right place.

But here's what impressed me when I actually sat down and looked at the full ingredient list. They didn't just stop at PDRN and the delivery system.

They added bakuchiol. You might not have heard of it. It's a plant based ingredient that does what retinol does for collagen, but without the irritation. I can't tell you how many patients I've seen come in with red, peeling under eyes because someone told them retinol would fix their hollowing. They used it for four days and quit because their skin was on fire. Bakuchiol gives you the collagen support without any of that.

They put in a Centella complex. Centella is one of my favorite calming ingredients. It keeps the surface of your skin comfortable while the delivery system is doing its work underneath. Think of it as the thing that makes sure your skin stays calm while the real repair happens deeper down.

There's niacinamide in there for barrier support. Your skin barrier is like a gatekeeper. If it gets damaged or weak, nothing you put on your face works the way it should. Niacinamide keeps it strong.

And adenosine. Adenosine doesn't get a lot of attention, but it quietly helps the skin feel firmer. More solid. Like there's actually something there instead of tissue paper.

Every single ingredient in this formula was chosen for a reason. I've looked at the label. There's nothing in there for marketing. Nothing added just so they could slap a trendy buzzword on the box. The entire product is built around one simple idea. Get the right compound to the right layer. And let the skin do what it already knows how to do.

It comes in a 30ml bottle. You put it on at night. Clean skin. Dry skin. That's it.

Here's What You'll Notice the First Time You Use It

[Image – Woman Applying Serum]

A mild tingle. That's the delivery system I told you about. Those tiny spicules creating the micro channels. The tingle lasts a minute or two and then it goes away.

I want to explain this because I know it might make some women nervous the first time.

That tingle is not irritation. It is not a sign that something is wrong. It is actually the one thing you have never felt from an eye product before. And the reason you've never felt it is simple. No other eye product has ever gotten past the surface. This one does. And that tingle is how you know.

After a few nights, most of my patients actually start to like the feeling. They tell me it's the moment they know this product is doing something every other eye cream they've owned couldn't do.

The serum soaks in fast. It doesn't leave a sticky film on your skin. It doesn't pill up when you put moisturizer over it. It fits right into whatever routine you already have. You're not changing everything. You're not adding five new products. You're adding one step. It takes about 30 seconds. And that one step does what the other ten steps in your routine never could.

What I've Seen Happen With My Own Patients

[Image – Before & After Results]

I've put dozens of patients on this serum. The pattern is the same. Every time.

First week: The puffiness in the morning goes down. The under eye area looks smoother and calmer. Less swollen when you wake up.

Weeks two to three: This is where it gets exciting. The hollow look starts filling in. The skin is getting thicker. You can see the area starting to look fuller, less sunken. The tissue underneath is rebuilding.

Week four and beyond: The skin under the eyes feels different. Firmer. Stronger. Like it has substance again instead of feeling like tissue paper. The hollows that made your face look gaunt and exhausted are softening. Volume is coming back.

And then something happens that tells me this product is doing something real.

Other people start noticing.

Several patients told me their friends or partners asked if they got filler. That always makes me smile. Because the results look more natural than any filler I've ever done. No lumps. No weird puffiness. Just healthy skin that looks rested and full.

One patient said something that really stuck with me:

"I finally look like myself again."

Not younger. Not different. Just herself.

That's what real healing looks like. And that's what makes PDRN different from everything else out there.

Here's What I Tell My Patients When They Ask What to Order

[Image – Zivvi Product Lineup]

If you're dealing with under eye bags, hollowing, or that sunken look, and you've been thinking about filler or surgery, I always tell my patients the same thing. Try this first. Give your skin what it needs to rebuild itself before you go to something more serious.

Zivvi structured the pricing around how your skin actually works. Not around how much they can get you to spend. It's about matching what you buy to the timeline your skin needs to show real results.

There are three options.

The Starter
One bottle. About 30 days.
$64.97

Enough to get through the first phase. You'll feel the tingle. Your skin starts responding. You'll notice early changes in how the area looks and feels when you wake up. This is the option if you want to see whether it's the right fit before committing to more.

The Full System
Three bottles. Complete protocol + maintenance.
$149.95 Save $45

Three bottles gets you through the complete protocol and into a maintenance phase. This is for the woman who already knows she's done wasting money on things that sit on the surface. She wants the full transformation and she doesn't want a gap in the middle where she runs out and the progress stalls.

Let me put this in perspective the way I do with my patients.

A single tear trough filler session costs $600 to $1,500. And you have to go back and do it again every 6 to 12 months. Most of my patients have already spent $300 to $600 on premium eye creams that never got past the front door of their skin. The full Zivvi system costs less than one filler appointment. And it actually reaches the layer where the problem starts.

Start the 28 Day Protocol →
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The 28 Day Texture Test™ Guarantee

[Image – Guarantee Badge]

Here's something that tells you a lot about how much confidence Zivvi has in this product.

They'll let you use it every night for 28 days. They want you to take a photo on Day 1 and another photo on Day 28. Same lighting. Same angle.

If your under eyes don't look fuller. If the hollowing hasn't softened. If you look at those two photos side by side and you honestly don't see a difference. They give you every penny back.

No hoops. No hassle. No sitting on hold while someone reads a script trying to talk you out of it.

You just email them your two photos and they process your refund within 48 hours.

I actually love that they ask for the photos. And not because it's a barrier. It's because the photos are part of the protocol. They're how you objectively track what's happening in an area of your face where you've been staring at yourself so long you stop trusting your own eyes.

The biggest enemy of any skincare product is that little voice in your head that says "am I imagining this?" The photo protocol kills that voice. You see the difference. Or you don't. And if you don't, you get your money back. Simple as that.

Here's What I Want You to Think About

[Image – Confident Woman]

I've spent the last several minutes explaining the delivery problem to you. Why nothing you've tried has worked. Why creams sit on the surface. Why filler covers things up but doesn't fix them. And why PDRN combined with this delivery system is the first thing I've seen that actually gets to where the damage is.

You've probably been stuck in the same cycle for a while now. Trying a new eye cream. Hoping this one will be different. Watching it do nothing. Going back to concealer. Thinking about filler but not being ready to take that step.

I understand that cycle because I've watched my patients live in it for years.

What I can tell you is this. You now understand something most women don't. You know why those products failed. It wasn't your fault. It wasn't that you picked the wrong brand. It's that nothing you used could get past the surface of your skin. The problem was never the ingredient. The problem was always delivery.

That problem has been solved.

And with the 28 Day Texture Test™ Guarantee, there is no risk in trying. You either see a difference in your photos or you get your money back. Every penny.

The only risk, and I say this to my patients all the time, is doing nothing. Because the hollowing doesn't pause while you think about it. The collagen loss doesn't wait. Every month you don't address it, the problem gets a little deeper. A little harder to reverse.

You don't have to live with it. And you don't have to jump straight to filler.

There's something in between now. And it works.

Start the 28 Day Protocol →
[Image – Zivvi Product & Happy Customers]

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Frequently Asked Questions

Is this safe to use around the eyes?

Yes. The serum is designed specifically for the under eye area. Apply to clean, dry skin and gently pat until absorbed. You'll feel a mild tingle that fades within minutes. We also include a patch test protocol: before you ever use this on your under eyes, you test a small amount behind your ear first. If anything feels off, you'll know immediately with zero risk to your under eyes.

What does the tingle feel like?

A mild prickling sensation that lasts one to two minutes. It's not burning. It's not irritation. If you've ever used a vitamin C serum and felt a slight tingle, it's similar. Most women actually find it reassuring after a few uses because it tells them the product is doing something no other eye cream ever did: actually getting through.

How is this different from other PDRN products?

Most PDRN serums on the market just apply the compound to the surface of your skin. Same barrier problem as every other eye cream. The PDRN sits on the outside and can't get in. Zivvi combines PDRN with natural sponge spicules that create temporary openings in the barrier so the compound can actually reach the deeper layer where it matters. Without the delivery system, PDRN is just another ingredient stuck on the surface. That's the entire difference.

When will I see results?

Most women start noticing early changes around weeks 3 to 5. It usually starts with the under eye area feeling firmer and the crepey texture under harsh lighting beginning to soften. More noticeable improvements in the look of hollowing tend to develop over weeks 6 to 12 as results compound. We recommend committing to the full 28 days before evaluating, which is why the guarantee is built around that timeline.

Will this replace filler?

No, and we won't pretend it will. Filler adds physical volume beneath the skin. This serum improves the quality of the skin itself. If your hollowing is caused by deep volume loss, you may still benefit from a procedure. What the Dermal Renewal Delivery System™ does is improve the look of the skin over and around the hollow area, which can make hollowing appear significantly less noticeable. Many women find that once their skin quality improves, they no longer feel they need filler at all. Others use it as a smarter first step before making any procedure decisions.

What if I have sensitive skin?

We take this seriously. That's why we built a patch test protocol into the experience. Test behind your ear first and wait 24 hours. The formula includes a calming Centella complex and uses bakuchiol instead of retinol specifically because retinol is too harsh for the under eye area. That said, if you have severe skin sensitivities or are using prescription retinoids, check with your dermatologist first.

How do I use it?

Apply a thin layer to clean, dry skin in the evening. Gently pat until absorbed. Use before your moisturizer. Follow with sunscreen in the morning. That's it. One step. Nightly. Takes about 30 seconds.

What is the refund policy?

The 28 Day Texture Test™ Guarantee. Use it every night for 28 days. Take a Day 1 photo and a Day 28 photo under the same lighting. If you don't see a visible improvement, email us both photos and we'll refund you in full within 48 hours. No hassle, no runaround.

Where is this made?

Formulated and manufactured in South Korea. Distributed by Zivvi LLC in Albuquerque, NM. Korea is the global leader in PDRN science and aesthetic innovation. This formula is made in the same country where the compound was pioneered for clinical skin rejuvenation.

Start the 28 Day Protocol →
  • Rachel Simmons
    Has anyone actually tried this? I've wasted so much money on eye creams.
    Like · Reply · 6 · 22 min
    • Dana Moretti
      Yes! I'm on week 3. The hollowing under my left eye is visibly less deep. My husband noticed before I even said anything.
      Like · Reply · 9 · 14 min
  • Stephanie Klein
    I was literally about to book a filler appointment. Going to try this first. The guarantee makes it a no-brainer.
    Like · Reply · 5 · 38 min
  • Jeanette Park
    How long does shipping take? I want to start ASAP.
    Like · Reply · 1 · 52 min
    • Lisa Drummond
      Mine came in 4 days. Pretty fast.
      Like · Reply · 3 · 30 min
  • Tom Whitfield
    Bought this for my wife's birthday. She's been self-conscious about her under eyes for years. She cried when she saw the difference at week 3.
    [User Photo]
    Like · Reply · 12 · 1 h
  • Monica Vasquez
    The tingle is real! First night I was like "whoa" but now I actually look forward to it. You can FEEL it working.
    Like · Reply · 4 · 1 h
    • Karen Albrecht
      Same here! It's actually reassuring. No other eye product has ever made me feel like anything was happening.
      Like · Reply · 3 · 45 min
  • Diane Hartwell
    I'm 58. My under eyes have been hollow for over a decade. Two weeks in and I swear the skin feels thicker already. Cautiously optimistic.
    Like · Reply · 7 · 2 h
    • Nancy Graves
      Keep going Diane! Week 4 is when I really saw the change. It's worth the wait.
      Like · Reply · 5 · 1 h
  • Patricia Liu
    My aesthetician asked me what I was using. When I told her about the spicule delivery she said "that's actually genius." Ordered one for herself.
    Like · Reply · 8 · 2 h
  • Sarah Blackwood
    Just ordered the Protocol Bundle. If it doesn't work I'll use the guarantee. But based on these comments I'm feeling really hopeful.
    Like · Reply · 3 · 3 h
  • Emily Warren
    Three of my coworkers ordered this after seeing my Day 1 vs Day 28 photos. The difference is honestly shocking.
    Like · Reply · 11 · 3 h
  • Martha Chen
    I had to buy a second bottle for my mom. She kept "borrowing" mine 😂
    Like · Reply · 6 · 4 h
    • Angela Russo
      Haha same! My sister won't give mine back. Just ordered the Full System so we can each have our own.
      Like · Reply · 4 · 3 h
  • Brenda Foster
    Someone finally explained WHY my eye creams never worked. The delivery problem makes so much sense. Just ordered.
    Like · Reply · 4 · 4 h
  • Julie Nakamura
    Just got mine today! Starting the protocol tonight. Took my Day 1 photo already. Fingers crossed!
    [User Photo]
    Like · Reply · 5 · 5 h