The Real Reason Seborrheic Keratoses Keep Coming Back — And Why Nobody Told You This Before

Published: April 15, 2026 | 3:33pm EST

Beauty & Wellness

Words by Sandra Mitchell

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Cryotherapy. IPL. Wart remover. ACV. The same dermatologist visit, the same four words: "It's just the nature of them." Here's what that explanation left out — and what finally changed for the women who found it.

Skin concern story

THE MORNING I STARTED ASKING THE WRONG QUESTION

I started investigating this after I received an email from a reader.

She'd been managing seborrheic keratoses — the flat, cornflake-ish or harder warty growths that cluster on the trunk, chest, neck, and back — for eleven years. In that time she'd had hundreds removed. Paid for cryotherapy sessions at $250 a group. Tried IPL. Tried wart remover at home, medical freeze spray from Amazon, ACV on a cotton pad held in place with a bandaid.

"More arriving every day," she wrote. "I've been told it's just the nature of them. I want to understand if that's actually true or if there's something I'm missing."

It's a question I'd heard variations of before. But this time I decided to actually answer it.

What I found surprised me. Not because the answer was complicated.

Because it was simple, specific, and apparently nobody had told these women.

Person reading on phone

WHY MOST TREATMENTS FAIL (AND WHAT THAT ACTUALLY MEANS)

To understand why seborrheic keratoses keep returning, you first need to understand what they actually are.

They're not a pigmentation issue. They're not surface discoloration. They're not something that can be managed the same way as a dark spot or a patch of dry skin.

Seborrheic keratoses are physical growths — abnormal keratin buildup, the same protein that forms the outer layer of skin, accumulating and hardening into raised growths faster than the skin can shed it. That's what creates the flat cornflake-ish ones and the harder warty ones. They're not sitting on top of the skin. They are the skin, hardened into something the skin's natural shedding process can't keep up with.

This distinction matters enormously — because it explains why virtually every available treatment only ever works temporarily.

Why Removal Keeps Failing

Seborrheic keratoses are hardened keratin growths. Most treatments address them after they form. The Smooth & Even Glycolic Body Stick addresses the keratin buildup forming them — in sustained contact, across all of them simultaneously.

Why cryotherapy and cauterization keep failing:

Professional removal destroys the growth at the cellular level. What it doesn't do is address the skin's underlying tendency to keep producing new ones. Which is why they come back. And why new ones appear alongside the ones just removed. The dermatologist session solves the visible problem while leaving the cause completely untouched.

Why creams and most topicals do almost nothing:

Applied to the surface of a hardened keratin growth, most products are absorbed or wiped away before they can dissolve anything meaningful. The growth has a hardened outer layer. A cream that sits on top of that layer for sixty seconds — before being absorbed into the skin or rubbed off by clothing — can't penetrate it. Contact time is the missing piece, and most topical applications have almost none.

Why IPL helps more than most but still can't keep pace:

It penetrates deeper than a topical, which is why it produces more visible results. But at several hundred dollars per session, several sessions per year, it was never going to keep up with a condition that keeps multiplying between appointments regardless of how thorough each session is.

The mechanism failure is the same across all three: they address the individual growth after it's formed. None of them address the keratin overproduction that keeps forming new ones continuously.

Which is why, when I asked five women who've been managing this condition for years to describe their experience with treatment, I heard almost identical answers.

Margaret testimonial

Margaret, 62, Florida:

"I noticed the first ones on my back maybe six years ago. One. I wasn't worried. Then there were five. Then ten. Then I stopped counting. I've been getting groups cauterized off every winter. Hundreds of dollars per area. I sit through the sessions, wait for the white marks to fade, feel relieved for a few weeks. Then I look down and find more than I started with. My dermatologist looked at my skin and said, 'You do have a lot. It's likely hormonal or genetic. We can remove the ones that bother you most but there's really no way to stop new ones appearing.' I've been hearing that for six years."

Linda testimonial

Linda, 55, Ohio:

"I can look at my left side alone and count close to a hundred. My back must have several hundred more. They start small and flesh-coloured — easy to dismiss. Then they darken, get raised, and spread to places the previous ones never reached. Every time I shower and catch a glimpse in the mirror, there are more. I've tried wart remover from the pharmacy. The fumes were so bad I could feel them in my lungs through a mask. The ones I managed to treat? Gone for a few weeks. Then back. Sometimes darker than before."

Patricia testimonial

Patricia, 58, Texas:

"I'd had them removed. Hundreds removed. And hundreds still there. Every session felt like progress. Then I'd look down and realise I'd spent hundreds of dollars to temporarily remove things that were just going to come back while new ones arrived in the meantime. I went back to my dermatologist after three sessions in eighteen months. She nodded and said, 'They do tend to recur. It's just the nature of them.' I sat in my car and just — stared. I'd traded one visible problem for white marks. And now I was being told that was the best available answer."

Carol testimonial

Carol, 61, Georgia:

"I just wanted to get ahead of all of them at once. Not spot treat one or two and watch ten more appear while I was dealing with those. I read every thread. Saw every suggestion. Dermaplaning. Chemical peels. IPL. Creams that claimed to help. I tried retinol. Then tretinoin on the small new ones on my neck, hoping to at least stop them getting bigger and darker. My skin got drier. More sensitive. The small ones looked marginally better. The hundreds on my back, sides, and trunk looked exactly the same. I was always behind."

Susan testimonial

Susan, 64, Virginia:

"The thing nobody prepares you for isn't the appearance of the first one. It's the feeling that once they start, nothing stops them. Like your skin has switched something on that you can't switch back off. I've gotten groups removed and felt relieved for a few weeks. Then I looked down and counted eleven new ones where the old ones used to be. Doctors say, 'Wow, you do have a lot. Did you spend a lot of time in the sun?' I have hundreds on areas that have never seen the sun in my life."

Sound familiar?
The Smooth & Even Glycolic Body Stick is the leave-on dual-acid formula these women found after years of losing ground.

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THE QUESTION THAT CHANGES EVERYTHING

The reason "it's just the nature of them" feels so final is because it's answering the wrong question.

The question these women have been asking — and the question cryotherapy, IPL, and home removal methods have been answering — is: how do I remove what's already here?

That's not the question that matters.

The question that matters: why does the skin keep producing them faster than anything can remove them — and what actually addresses that process directly?

The answer comes down to two things nobody mentions in the standard dermatologist conversation.

The keratin structure of each individual growth.

Every seborrheic keratosis is a hardened keratin formation. Not surface discoloration. Not a bump with soft tissue underneath. A physically hardened structure. Which means anything designed to work on skin — a cream, a serum, a topical pad — is sitting on top of a hardened surface it can't penetrate without sustained, direct contact. The growth doesn't absorb things the way normal skin does. It's hard. And treating something hard requires something that stays against it long enough to break it down.

Contact time.

This is the piece that almost nobody in the skincare conversation names explicitly. Contact time is the amount of time an active ingredient spends in direct contact with what it's supposed to be working on. A cream applied to a hardened keratin growth and then absorbed into surrounding skin in sixty seconds has almost no contact with the growth itself. A product applied and immediately rinsed away — a wash, a toner on a pad — has even less.

Glycolic acid dissolves keratin bonds. Salicylic acid penetrates through keratin structures. Both of these are well-established. But they need time to work — and most formats they come in don't provide it.

Which is why the same ingredients that work well for other skin concerns barely touch established seborrheic keratoses. It's not the wrong chemistry. It's the wrong delivery.

THE DISCOVERY

Nexisify Smooth Even Glycolic Body Stick

After months of the same conversations — dermatologist visits, home experiments, forum posts ending in "it's just the nature of them" — each of the five women I spoke to eventually found their way to the same product through different routes.

A friend noticed one morning at a book club. A neighbor mentioned it getting into a dress. A sister-in-law who worked in a dermatology practice suggested looking at leave-on acid formats specifically. A forum post at 11PM that finally explained the contact time mechanism.

What they all arrived at was the Nexisify Smooth & Even Glycolic Body Stick.

The specific formulation:

7% glycolic acid — at this concentration, glycolic acid dissolves the keratin bonds holding the hardened skin cells of a seborrheic keratosis together. It's working on the structure of the growth itself, not the skin around it.

0.5% salicylic acid — penetrates through the growth and addresses the keratin buildup underneath. One acid dissolving from the outside. One working through from within.

10% shea butter — for skin that has been through repeated removal attempts and is sensitized and reactive, something actively rebuilding the barrier while the acids work isn't optional. It's the difference between a product that works and one that causes a new problem while solving the original one.

The format is a leave-on stick. One swipe across the affected area. Left on the skin — not rinsed, not wiped away.

That's the contact time piece.

"The reason I kept dismissing topicals," Carol told me, "was because nothing ever stayed on long enough to do anything. A serum disappears in minutes. A wash is gone immediately. This stays. And when something with these ingredients stays in contact with those growths consistently — the results are different from anything I'd tried."

The women I spoke to each found their way to this product through different routes. What they all reported was the same.

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WHAT ACTUALLY HAPPENS

Before and after results

None of the five women I spoke to described overnight transformation. What they described was more specific, more honest, and — I'd argue — more persuasive than any dramatic before/after story.

Margaret: "Day five. I ran my finger over the flatter ones on my chest. Different. Less raised. I did it again just to check. Day seven, I compared a photo to one I'd taken two weeks earlier. The flatter ones had visibly reduced. Not gone. But different in a way nothing had managed before. Week three, I wore a lower cut top. The ones across my chest that had always made me reach for a higher neckline first. I didn't think about it until I was already out the door."

Linda: "Day ten. I caught myself not doing the morning check automatically. First time in as long as I could remember. The harder warty ones on my neck were still there at two weeks but the edges had softened. Less defined. And the new ones appearing — smaller than the ones I'd been dealing with for years. Flatter from the start. That was new."

Patricia: "Two months in, new ones still arrive. That's just the nature of them. But they don't get the chance to build up the way they used to. I catch them earlier. Keep them flatter. Manage all of them consistently rather than waiting until I have enough to justify another dermatologist appointment. I'm not cured. I never expected to be. But for the first time I feel like I'm actually keeping pace with them."

Carol: "The flat ones are basically gone. The harder ones are flatter. New ones are still appearing but they're smaller than they used to get. I haven't booked a dermatologist appointment in four months. That's the part that surprised me most."

Susan: "Someone close to me noticed the ones on my chest had changed before I told them anything. They'd seen my skin for years. That was when I knew something had actually shifted."

Before and after results Skin improvement results

WHAT THE INGREDIENT SCIENCE SAYS

Glycolic acid's ability to dissolve keratin bonds is not a marketing claim — it's established chemistry. Clinical research published in the Journal of Dermatological Treatment found that glycolic acid at therapeutic concentrations significantly improved keratin-related skin conditions, with measurable surface changes across consistent use over several weeks.

The salicylic acid component adds a penetration mechanism glycolic acid alone doesn't have — salicylic is oil-soluble, allowing it to penetrate through the lipid-rich structure of a seborrheic keratosis rather than sitting on the surface. The combination of both acids in a leave-on format is the mechanism the standard topical format has always missed.

The shea butter is not incidental. Repeated cryotherapy and home removal attempts sensitize the skin barrier significantly. An occlusive barrier ingredient that keeps the acids in contact with the target while protecting the surrounding skin is what makes the formula functional for daily use rather than an occasional treatment.

The 90-day money-back guarantee means the risk of trying it is the same as the risk of booking one more dermatologist session that comes straight back.

THE HONEST ANSWER TO "IT'S JUST THE NATURE OF THEM"

That four-word sentence is true, to a point.

New seborrheic keratoses will always appear. The skin's tendency to overproduce keratin in certain patterns doesn't have an off switch. No topical product — this one included — changes that underlying biology.

What the sentence leaves out is this: the rate at which new ones build up and become visible, the size and height of existing ones, and the consistency with which they're being addressed across the full affected area — all of these can be changed.

Not cured. Changed.

The women I spoke to didn't stop getting new ones. They stopped losing ground.

There's a significant difference between "it's just the nature of them" as a reason to stop trying and "it's just the nature of them" as an honest framing for what consistent mechanism-appropriate management can actually deliver.

For anyone who has been given the first version and told that's the whole story — it isn't.

IF THIS IS YOUR SITUATION

If you've been getting groups removed and finding more alongside them before they've healed. If you've heard "it's just the nature of them" and accepted it because you didn't have another option. If you've been trying to spot treat one while ten more appear in the background.

The Nexisify Glycolic Body Stick is available with a 90-day money-back guarantee.

That's long enough to watch the flat cornflake-ish ones reduce, feel the harder raised ones soften at the edges, and notice new ones appearing smaller and flatter than they used to get.

Track it yourself. Notice when you stop doing the automatic morning check. Notice when you reach for a lower neckline without thinking about what's underneath it. Notice when a new one appears and stays smaller than anything you've dealt with before.

It won't stop the nature of this condition. But it's the first approach that addresses what's actually forming each growth — across all of them simultaneously — rather than treating them one at a time while more appear in the background.

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