Skip to product information
 (10,000+ Reviews)

Extended Warranty

Extended Warranty

Softens and flattens SKs (barnacles) within 60 days

One routine that covers every area, not another $250 appointment for one spot

Your skin stops looking ten years older than you actually feel

No more hiding. No more covering up. No more checking every day.

  • Visa
  • Mastercard
  • American Express
  • Apple Pay
  • Discover
  • Google Pay

One cryo session: $250 for 7 spots. One jar: $40+ for every spot, every night.

 
add_shopping_cart

-

Ordered

local_shipping

- - -

Order Ready

redeem

- - -

Delivered

INVENTORY ALERT: Low Stock Remaining

Over 10,000 jars shipped. Most customers reorder within 60 days. Backed by our 60-day money back guarantee, if you don't feel the difference, you get a full refund. No questions. PS: Only available here, don't buy fakes on Amazon/eBay.

help

How do I use SK Renewal 40?

How To Use

First Time? Pick one small spot. Apply a thin layer. Give it a little time. A gentle tingle means it's working, totally normal. Once it feels good, treat all your other spots.

Daily Routine

  1. Wash the area and pat dry
  2. Dab directly on each spot — thin layer for flat spots, generous layer for thick raised ones
  3. Rub in gently until absorbed
  4. Once daily for the first week — twice daily once your skin is comfortable

Tips

  • Treat all spots in one session — neck, chest, back, arms, legs, hands, elbows, knees
  • Apply on the spot only, not the skin around it
  • Body use only — keep it below the jawline
  • Avoid cuts, open wounds, or freshly shaved areas
  • Use sunscreen on treated areas during the day
  • Keep away from eyes and out of reach of children

Your Journey

  • Week 1–2: Spots start softening
  • Week 2–4: Visible flattening
  • Week 4+: Keep going — consistency is everything
help

How long does shipping take?

Most US orders arrive within 5–8 business days. International orders typically arrive within 8–14 business days depending on your country. Every order ships with full tracking so you'll always know exactly where your jar is.

help

What if it doesn't work for me?

Then you don't pay for it. Use the full jar for 90 days. If your spots aren't visibly softer and flatter, email us one photo and we'll refund every cent, and you keep the jar.

We built it this way because we know you've probably wasted money before on things that did nothing. You shouldn't have to gamble again. The only thing you're risking is the time it takes to try it.

help

How do I cancel my subscription?

Cancelling is as simple as reaching out. Send us a message through our email or the Contact Us menu, and we'll cancel your subscription within 12-24 hours — no hidden fees, no extra charges, no back and forth.

You ask, we do it. Simple as that. We want you here because you love the results, not because cancelling was hard.

  • files/ChatGPT_Image_Jul_7_2026_09_13_29_PM.png

    "I spent decades removing these one at a time. Patients kept coming back with new ones. SK Renewal 40 changed my approach. The 40 percent urea softens compacted keratin from within. I've watched patients go from dozens of rough spots to noticeably smoother skin in two to three months. This is now my first recommendation."

    Theressa Ceron., United States
  • files/hf_20260126_210404_91e7bf49-6e69-487d-9196-21fee1d28edc.webp

    "I spent over $2,000 on cryotherapy in two years. They froze them off. They came back. New ones showed up right next to them. I felt like I was throwing money at something that never ended. A friend told me about SK Renewal 40. I didn't believe a cream could do anything my dermatologist couldn't. But after 8 weeks the bumps on my chest were flatter. Smoother. I wore a tank top to my daughter's soccer game last month. First time in four years I didn't grab a cardigan on the way out the door."

    Sarah L., United States
  • files/636.webp

    "I found a new one every few weeks. Neck, chest, back. I stopped counting after 40. My doctor said they're harmless. That didn't stop me from hating how they felt every time I touched my skin. I started using SK Renewal 40 every night. After about 6 weeks the rough ones on my neck softened. By month three I ran my hand across my chest and actually felt smooth skin. I cried in the bathroom. My husband asked what was wrong. Nothing was wrong. Something was finally right."

    Rachel A., United States
    View full details

    Trusted By 10,892+ People Who Refused To "Just Live With It" ❤️

      • I Can't Believe That's The Same Skin

        "I almost didn't take the before photo. I hated looking at my chest that much. I'd had those raised brown spots for over eight years and they just kept spreading. Every summer I'd layer a cardigan over everything because I couldn't stand people's eyes dropping to my chest and seeing them. My dermatologist froze a few off but they came back and new ones filled in around them. I spent maybe $1,500 over the years on removal and had nothing to show for it. My sister sent me a link to this cream and I honestly rolled my eyes. But I was desperate enough to try. I used it every night for about 10 weeks. The rough ones softened first. Then they started flattening. The dark patches faded. I didn't even notice how much had changed until I put on a V-neck one morning and my daughter said, 'Mom, your chest looks amazing.' I went back and looked at the before photo and I couldn't believe it was the same skin. The right photo is me three months later. No filter. No makeup on my chest. Just skin that finally looks like mine again. I wore that top to dinner and didn't pull it up once."

        Margaret P.,58 Verified Buyer

      • My Back Was The Part Of My Body I Hated The Most

        "My back was the one part of me nobody got to see. Not my husband, not a massage therapist, no one. I couldn't even count the spots across my shoulders anymore, and I'd genuinely turned down being a bridesmaid once because the dress was backless and I couldn't face it. So my expectations here were basically zero.

        My husband put this on every night on the spots I couldn't reach. Around week 5 he said they felt smoother, less raised, I didn't fully believe him until week 10 when I could finally see it in the mirror myself. Look at the two photos. The dark ones faded, the thick raised ones flattened.

        I'll be honest, it's not perfect and it took longer than I wanted, I was hoping for a month and it was closer to three. And it's not cheap. But it's the only thing in a decade that did anything at all, so I'm not complaining much. I'm 55 and I don't dread summer for the first time in forever."

        Jessica C.,55 Verified Buyer

      • I'm 72 And My Granddaughter Said My Neck Looks Beautiful

        "I've had these spots since my late 50s. They started on my neck and just kept spreading down to my chest. Big dark ones. Raised ones. Rough ones that caught on every neckline I wore. I'm 72. I was told a long time ago to just accept them. That they come with age. That there's nothing to do unless I want to pay hundreds to freeze them off one by one. So I stopped trying. For years I just wore crew necks and scarves and tried not to look in the mirror too long. My daughter ordered this cream for me because I never would have ordered it myself. I didn't think anything could help at my age. She came over twice a week and helped me put it on my neck and chest every night. I didn't notice much the first few weeks. Then around week 6 the rough ones started feeling different. Softer. Less raised. The dark patches started fading. By month 3 I looked in the mirror and my neck looked like it belonged to a different person. Not perfect. I'm not 30. But the thick raised ones that made me feel like everyone was staring at my neck were so much flatter and lighter. My granddaughter was visiting and she looked at me and said, 'Grandma, your neck looks beautiful.' I went to the bathroom and cried. Nobody had said anything nice about my skin in 15 years. I wore a V-neck to church the following Sunday. First time in I don't even know how long."

        Jestina K.,72 Verified Buyer

      • My Arms Aged 20 Years Before The Rest Of Me

        "I'm 49 and my face looks 49 but my arms looked 60. Counted over 30 on one arm. Stopped wearing anything sleeveless, even at home, even in July.

        Found this at midnight going down a rabbit hole. Didn't expect much. Week 4 the raised ones started softening, week 8 the dark ones were fading. They're not all gone, you can still see a couple in the after, and the smell is a little medicinal, not gonna lie. But look at the difference. Wore a sleeveless top to brunch and didn't think about my arms once. Forgot to, actually. That's the part that got me."

        Abena M. Verified Buyer

      • I Stopped Pulling My Collar Up Every Time Someone Talked To Me

        "I'm not the kind of guy who buys skincare products. Never have been. But these spots on my neck and chest got to a point where I couldn't ignore them anymore. They started in my early 50s. A few dark spots near my collarbone. No big deal. Then they spread. Up my neck. Across my chest. Dark, rough, raised. I looked like something was wrong with me. I started wearing crew necks to work. Buttoned my shirts all the way up. At the beach I'd keep my shirt on. If someone stood close to me in conversation I'd catch myself pulling my collar up without thinking. My wife noticed. She said I'd been doing it for years. I didn't even realize. My doctor said they're harmless and that removal would cost a fortune because I had so many. So I did nothing. For five years I did absolutely nothing except cover them up. My wife found this cream online and put it on the bathroom counter. I started using it at night. Didn't tell anyone. Didn't expect anything. Around week 6 the raised ones on my neck felt smoother. The rough texture was softening. By month 3 the dark spots had faded enough that I could see my actual skin tone again. I'm not going to pretend they disappeared. They didn't. But look at the difference. My neck looks like a normal neck again. Last week I wore a V-neck to a barbecue and my buddy said I looked good. I just said thanks. Didn't explain. Didn't need to.

        Richard L.,62 Verified Buyer

        This Formula Was Built For These Three Problems

        For Years There Was No Real Answer. Then 40% Urea Changed Everything

         

        Seborrheic Keratoses/Barnacles/Rough,Raised Spots

        Rough, raised growths that feel stuck to your skin and keep showing up on your neck, chest, back, and arms. They started with one or two. Now there are dozens. They catch on your clothing, they itch, and no cream you've tried has ever made a difference.

        Keratosis Pilaris

        Tiny rough bumps scattered across the backs of your arms, thighs, or cheeks. You've been told it's just dry skin. You've exfoliated, moisturized, and scrubbed. The bumps are still there. They make your skin feel like sandpaper no matter what you put on them

        Rough, Thickened Skin

        Dry, cracked, hardened patches on your heels, elbows, or knees that build up no matter how much lotion you use. The skin feels thick and rigid. It cracks. It flakes. Regular moisturizers sit on the surface and disappear within an hour. Nothing gets through.

        Skin That Feels Like Skin Again

        What Changes When You Start Using SK Renewal 40

        Professional removal costs $150 to $300 per spot. And they come back. And new ones appear. SK Renewal 40 covers every area, every night, for a fraction of the cost of a single session. One jar. Every spot. No appointments.

        Why 40% Urea Works Differently

        Your skin growths are made of compacted keratin, packed in dense, rigid layers held together by hydrogen bonds. Regular moisturizers sit on the surface. Glycolic acid polishes the outside. Neither one can reach the structure underneath.

        At 40% concentration, urea crosses the keratolytic threshold. It penetrates into the compacted keratin and disrupts the hydrogen bonds from within. The dense layers that felt hard, raised, and stuck to your skin begin to loosen and soften.

        Salicylic Acid Finishes The Job

        Softened keratin still needs to go somewhere. That's where salicylic acid comes in. It dissolves the intercellular glue holding those loosened cells to each other.

        Once that bond breaks, your body sheds the softened material naturally. No burning. No freezing. No scabbing. No wound. Urea loosens. Salicylic acid releases. Your body clears. Two ingredients working at two different levels of the same problem.

        What Daily Use of Habsters Can Look Like

        • 18 shield check
          Week 1-2

          You Feel the Difference

          The rough, bumpy texture that catches under your fingertips starts to soften. The areas that felt hard and stuck to your skin feel less rigid. You touch your neck or chest and something is different. It's subtle. But you notice.

        • 18 shield check
          Week 3-4

          You See the Change

          The raised spots start flattening. The rough patches that used to catch on your bra or snag on your clothing feel smoother. You look in the mirror and the areas that bothered you most are less noticeable. You start checking less.

        • 18 shield check
          Week 5-8

          You Stop Hiding

          You reach for the V-neck instead of the high neckline. You don't think twice about it. The dark marks left behind are fading. Your skin feels smoother across your neck, chest, and back than it has in years. You book the massage. You wear the sleeveless top.

        • 18 shield check
          Week 9-12+

          You Feel Like Yourself Again

          You stop running your fingers across your skin every morning counting new ones. The bumps no longer control what you wear, how you feel, or how often you check. Your skin feels like yours again. You keep using it because for the first time you have a routine that actually keeps pace.

        40%
        Clinical-strength urea concentration.
        The threshold where urea stops moisturizing and starts softening compacted keratin from within.
        6
        Each one has a specific job. Soften. Release. Calm. Hydrate. Correct. Repair.
        Each one has a specific job. Soften. Release. Calm. Hydrate. Correct. Repair.
        60 Days
        Full money-back guarantee.
        Because real results take time, and we want you to see them before you decide.
        10,892+
        People who refused to "just live with it."
        Customers who finally found a routine that keeps pace with their skin.

        The Results That Made Them Reorder

        We surveyed over 1,000 customers with seborrheic keratosis to understand how our 40% Urea were affecting their lives. Here's what they had to say!

        Habsters Survey Statistics

        87%

        The rough, bumpy texture they used to feel every time they touched their skin had noticeably softened. Smooth where the roughness used to be.

        90%

        Raised spots that looked thick and stuck to their skin for years became visibly flatter. Dark marks faded. The skin looked younger.

        90%

        They finally had a routine that worked. They stopped checking every morning. They stopped hiding. Their skin felt like theirs again.

        *Based on previous customer experiences

        Powered by Nature's & Science Most Effective Ingredients

        Everything your regular cream is missing. The right ingredients, at the right concentrations, for rough, raised skin that nothing else has been able to reach

        40% Urea

        40% Urea

        Salicylic Acid

        Salicylic Acid

        Green Tea Extract

        Green Tea Extract

        Aloe Vera Extract

        Aloe Vera Extract

        Tea Tree Oil

        Tea Tree Oil

        Coconut Oil

        Coconut Oil

        40% Urea

        40% Urea

        Disrupts the hydrogen bonds inside compacted keratin that makes SKs feel thick, raised, and stuck to your skin. At this concentration it crosses from moisturizer to keratolytic, softening the dense structure from within where no regular cream can reach.

        Salicylic Acid

        Salicylic Acid

        Dissolves the intercellular glue holding keratinized cells together. Once urea softens the keratin, salicylic acid releases the loosened cells so your body sheds them naturally. Gentle enough for daily use but targeted enough to work on stubborn SK buildup.

        Green Tea Extract

        Green Tea Extract

        Calms the redness and irritation that builds up around SKs, especially after years of picking, scratching, and failed treatments. Reduces inflammation in the surrounding skin so the active ingredients can work without discomfort.

        Aloe Vera Extract

        Aloe Vera Extract

        Replenishes moisture in the treated area while the keratin is being broken down. SKs and the skin around them are often dry, rough, and compromised. Aloe creates a hydration barrier so healthy skin stays nourished while the formula targets the growth.

        Tea Tree Oil

        Tea Tree Oil

        Addresses the dark pigmentation that SKs leave behind. Even after the rough texture flattens, the darkened skin tone can make the area still look aged and uneven. Tea tree oil helps fade melanin deposits and restore a more natural, even appearance.

        Coconut Oil

        Coconut Oil

        Repairs skin that has been damaged by the growths themselves and by everything she's tried before, the burning from ACV, the scabbing from freeze spray, the irritation from wart remover. Rich in fatty acids that rebuild the skin barrier and help treated areas heal smoother.

        Habsters works, while others miss the mark.

        See how Habsters compares to common treatments.

          Cryotherapy Generic Glycolic Acid Products
        Softens compacted keratin from within
        Works on multiple areas at once
        No burning, freezing, or scabbing
        Clinical-strength keratolytic (40% urea)
        Dissolves intercellular glue between keratinized cells
        Designed specifically for seborrheic keratoses, barnacles
        No scarring or pigmentation risk

        60-Day "Smooth Skin" Guarantee

        We give you 60 days because this formula needs time to work. It's softening compacted keratin from within, not burning it off the surface. That takes weeks, not days. Most people feel a difference in the first 2 to 4 weeks. By week 8 to 12, the rough texture is noticeably smoother and raised areas are visibly flatter.

        We chose 60 days because that gives you the full timeline to see real results. Not rushed. Not pressured. Just enough time to let the formula do what it was designed to do.

        We can offer this because most people don't send it back. They reorder.

        Your Questions Resolved

        Frequently Asked Questions

        help

        Will this work for my skin type?

        Yes — the formula is designed for all skin types. It combines keratolytic actives (urea and salicylic acid) with soothing ingredients (aloe vera, coconut oil, vitamin E) that protect your skin during treatment.

        Apply only on affected spots — not on surrounding healthy skin, and never on the face. We recommend starting with once daily application, then building up to twice daily based on how your skin responds. If you have very sensitive or reactive skin, always patch test on a small spot first.

        help

        How long does one jar last?

        It depends on how many spots you're treating. Someone with a few patches on their neck might stretch a jar for 2 months. Someone treating their neck, chest, back, and arms will go through it faster.

        Most customers start with once a day while their skin adjusts, which makes one jar last about 2 months.

        Once you start seeing results and move to twice a day, one jar lasts about 1 month.

        help

        Can I use this alongside my other skincare products?

        Yes, but don't layer it with other strong actives like retinoids or acid treatments on the same area at the same time. That's too much exfoliation in one spot.

        If you use those products on other parts of your body, that's completely fine. Just introduce SK Renewal 40 gradually, let your skin adjust, and always follow with a moisturizer on the surrounding skin.

        help

        Is it safe to use on sensitive areas like underarms and the bikini line?

        We recommend starting on less sensitive areas first, like your neck, chest, back, or arms. 40% urea is a strong keratolytic, and thinner skin in areas like the underarms and bikini line may be more reactive.

        If you want to try it on a sensitive area, do a small patch test first and wait 24 hours. If there's no irritation, apply once every other day and let your skin adjust before increasing. If you experience any burning or redness, stop use on that area.

        Note: Do not apply on the face.

        help

        I'm in my 70s — is it too late for me?

        It's not too late. The process works the same at 75 as it does at 45 — older spots have simply been building longer, so they take a little more time to soften and fade. Some of our most dramatic before-and-afters are women in their 70s who'd spent years being told nothing could be done. Nothing about your age makes your skin the exception.

        help

        What ages is this suitable for?

        SK Renewal 40 is suitable for adults of all ages who have seborrheic keratoses. Most of our customers are between 35 and 70, which is when these growths tend to multiply and become more noticeable. Some customers in their late 20s and early 30s use it after developing early growths during pregnancy or hormonal changes.

        As long as your spots have been identified as seborrheic keratoses and not something else, age isn't a limitation. We do not recommend it for children under 18.

        help

        Does it hurt or irritate my skin?

        No. Despite the name, salicylic acid at 2% is the same gentle concentration found in everyday acne cleansers. And urea, even at 40%, is not an acid at all. It's a compound your body already produces naturally. There's no freezing, no burning, no scabbing.

        Some people feel a mild tingling during the first few applications while their skin adjusts. That's normal and usually goes away within a few days. If you have very sensitive skin, start with once every other day and work your way up. If any redness or discomfort persists, stop use on that area.

        help

        Does it leave scars?

        No. That's one of the biggest differences between this and professional removal. Cryotherapy, burning, and scraping destroy the growth from the outside, which can leave scars, dark marks, or light patches on your skin.

        SK Renewal 40 works differently. It softens the keratin from within and lets your body shed the loosened cells naturally. There's no wound. No scab. No healing period. Your skin does the clearing on its own, so the risk of scarring is virtually zero.