How to Treat Keratosis Pilaris (Chicken Skin)

Last updated on April 14th, 2026 at 12:35 pm

Keratosis pilaris, commonly called chicken skin, affects between 50 and 80% of teenagers and about 40% of adults, making it one of the most common skin conditions there is.

Most people recognise the bumps but have no idea what’s driving them, so they reach for the wrong products and see no results. Understanding the condition is what changes that.

As a pharmacologist, I’ve spent a lot of time in the science behind conditions like this one. This guide covers what causes chicken skin, which treatments actually work, how to use them correctly, and what makes the condition worse.

What Is Keratosis Pilaris

Keratosis pilaris forms when dead skin cells plug the opening of hair follicles instead of shedding normally. Those plugs create the small, rough bumps you can feel when you run your hand over the skin. The texture is distinctly sandpaper-like, almost like permanent goosebumps that never flatten out.

The bumps are usually skin-colored, red, or pink. On darker skin tones they tend to appear brown or hyperpigmented. Most people don’t experience itching unless the skin gets inflamed or they pick at the bumps.

KP is not an infection, not acne, and not caused by poor hygiene. It’s also not contagious. You can’t catch it from someone else or pass it on. It’s a genetic condition rooted in how your skin produces and sheds keratin, and it’s completely harmless.

Where Does Keratosis Pilaris Show Up

KP tends to appear in the same spots for most people. The outer upper arms are the most common location, but it also shows up on the front of the thighs, the buttocks, and the cheeks. Some people get it on their forearms or lower legs, though that’s less common.

These areas share two things in common. They produce less oil than other parts of your body, and they get more friction from clothing. Both factors drive keratin buildup, which is why KP keeps coming back in these spots specifically.

KP usually appears symmetrically, so if it’s on one arm it’s typically on the other too. Severity varies by location though, and you might have noticeable bumps on your arms with barely anything on your thighs, or significant bumps on your thighs with barely anything on your arms.

Facial KP is more common in children and teenagers and often improves with age, sometimes fading completely by the twenties or thirties. If you’re dealing with KP specifically on your face, the treatment approach is different because facial skin is more sensitive than body skin. Learn how to treat facial KP.

Who Gets Keratosis Pilaris

KP is genetic. If your parents have it, you’ll likely get it too, and it runs strongly in families.

People with eczema or ichthyosis vulgaris are more likely to develop KP as well. About 40% of people with eczema also have it. If you have asthma, hay fever, or seasonal allergies, your risk is higher too, because these conditions share the same underlying immune and skin barrier pathways.

KP often starts in childhood, gets worse during the teenage years, then tends to improve after 30. Some people find it fades significantly or disappears entirely, but plenty of adults keep dealing with it throughout their lives.

What Causes Keratosis Pilaris

Your skin is constantly renewing itself, shedding dead cells to make room for new ones. With KP, that renewal process breaks down. Rather than clearing naturally, keratin accumulates around follicles faster than your skin can shed it, and that excess is what creates the plugs.

Keratin itself isn’t the problem. It’s a structural protein your skin, hair, and nails need. The problem is overproduction. Your skin produces more than it can clear, and the excess builds up rather than shedding normally.

Why This Happens to Some People

Filaggrin plays a significant role. It’s a protein that keeps your skin barrier intact, and some people with KP have mutations in the gene that produces it. When filaggrin doesn’t work properly, your skin loses moisture faster and can’t maintain its barrier as well. Drier, compromised skin sheds dead cells less efficiently, and that drives more keratin buildup.

Not everyone with KP has filaggrin mutations though. Other genes affect how your skin produces keratin and how well it sheds dead cells, which is why KP runs in families even without this specific mutation.

Why There’s No Cure

KP is built into how your skin produces and sheds keratin. Treatments work by helping your skin shed dead cells more efficiently and stay hydrated, but they don’t change your genetics. You can improve how your skin looks and feels significantly, but it takes consistent effort rather than a one-time fix.

Does Vitamin Deficiency Cause Keratosis Pilaris

Vitamin deficiency doesn’t directly cause KP, but research suggests there may be a link.

Studies indicate that vitamin A may not be a direct cause but rather a contributing factor. People with low vitamin A levels can develop bumps that closely resemble KP, and those symptoms improve with supplementation. Poor dietary habits, including low vitamin A intake, have also been identified as a factor that can worsen existing KP in adults.

Vitamin D shows a similar association, though the research is limited. People with low vitamin D tend to have more skin conditions, including other forms of keratosis, compared to those with healthy levels.

If you suspect a deficiency is contributing, a blood panel will tell you. Correcting a genuine deficiency won’t cure KP, but it may make it easier to manage.

How to Treat Keratosis Pilaris

Treating chicken skin takes two things: chemical exfoliation and moisturization. The exfoliants dissolve keratin plugs and help your skin shed dead cells properly. The moisturizers protect your barrier while the acids do their work. Clinical studies show lactic acid reduces KP bumps by 66% over 12 weeks, but only with consistent use.

These recommendations are for body KP on the arms, legs, and buttocks. Facial KP needs gentler products because facial skin is more sensitive.

Exfoliating Body Lotions

The right chicken skin lotion does most of the heavy lifting. These are the ones with the strongest evidence, matched to different skin types.

AmLactin Daily Moisturizing Body Lotion has 12% lactic acid and the best evidence for KP specifically, making it the right place to start for most people, particularly if your skin is dry or sensitive. The texture is light, it absorbs quickly, and it doesn’t feel greasy. There’s a slight medicinal smell that fades fast.

CeraVe SA Lotion for Rough & Bumpy Skin works better if your KP is red or inflamed. It combines salicylic acid with lactic acid. Salicylic acid cuts through oil and reduces redness effectively, but it can dry your skin out. The ceramides in this formula balance that out, so it’s a better fit for oilier skin.

Eucerin Roughness Relief Lotion is the gentlest option. It contains 10% urea, which exfoliates gently while pulling moisture into your skin at the same time. If you’re new to acids or have sensitive skin, start here. It’s also fragrance-free.

Alpha Skin Care Renewal Body Lotion contains 12% glycolic acid and is the strongest option. Glycolic acid has small molecules that penetrate deeply and work quickly, but it’s also the most likely to irritate. Use this only if other acids haven’t worked, and start at two to three times per week rather than daily.

Exfoliating Body Washes

Body washes with acids help your lotion work better, but they can’t replace an exfoliating lotion. The acids rinse off too quickly to dissolve keratin plugs on their own, so think of them as preparation rather than treatment.

CeraVe SA Body Wash for Rough & Bumpy Skin contains salicylic acid, which makes it particularly useful if your KP is red or oily. Salicylic acid is oil-soluble, so it clears excess sebum from follicles in a way that lactic acid can’t. It also contains ceramides to prevent the dryness that salicylic acid can cause.

Glytone Exfoliating Body Wash contains 8.8% glycolic acid. Glycolic acid works faster than salicylic acid and suits drier skin better, because it doesn’t strip oil the same way. Use this if your KP is rough and dry rather than red and oily.

Barrier Moisturizers

These work differently from exfoliants. Rather than clearing plugs, they repair and protect your skin barrier, which is what prevents irritation while the acids do their work.

CeraVe Moisturizing Cream contains ceramides and hyaluronic acid. Ceramides rebuild your barrier over time while hyaluronic acid pulls moisture into the skin. It’s thick but not sticky, and it’s the right choice when your skin feels tight, dry, or irritated from exfoliation.

Vaseline is pure petrolatum. It doesn’t add moisture on its own, but it seals in whatever moisture and product is already on your skin, preventing it from escaping. Use it as a final layer at night or after hot showers, especially in winter when dry air works against you.

Aquaphor Spray does the same job as Vaseline but also contains lanolin and glycerin, so it both occludes and repairs. If your skin is consistently dry or cracked rather than just in need of sealing, Aquaphor is the better choice between the two.

Combination Products

First Aid Beauty KP Bump Eraser Body Scrub combines pumice, a physical exfoliant, with 10% AHA, a chemical exfoliant. The pumice manually loosens the surface of keratin plugs while the AHA dissolves the bonds holding dead cells together. Used together, they work faster than either approach alone.

This suits you if your KP is well established and single-ingredient lotions haven’t moved it much. Because it combines two forms of exfoliation, two to three times per week is enough. More than that and you risk irritating the follicles you’re trying to clear.

How to Choose

Start with one exfoliating lotion matched to your skin type. The best treatment for keratosis pilaris is the one you’ll actually use consistently, so choose based on where your skin sits right now. Dry or sensitive skin does better with lactic acid or urea, oily or inflamed skin does better with salicylic acid, and stubborn KP that hasn’t responded to either may need glycolic acid.

AmLactin for dry or sensitive skin. CeraVe SA for red or oily skin. Eucerin for sensitive skin or if you’re new to acids. Alpha Skin Care only if other acids haven’t worked.

Add a barrier moisturizer if your skin gets dry or irritated from the acid. A body wash is useful but not essential, so add one once your skin has adjusted to the lotion rather than starting both at once. Avoid layering separate exfoliating products on your own until you know how your skin responds. Pre-formulated combination products like the First Aid Beauty scrub are designed to balance both exfoliation types, so they’re a different case.

Most people notice their skin feeling smoother within two to four weeks of consistent use. Visible reduction in bumps takes longer, usually six to twelve weeks. The bumps may return if you stop, so think of this as long-term management rather than a one-time fix.

How to Treat Keratosis Pilaris Naturally at Home

Natural treatments can reduce symptoms and support your skin, but they work best alongside chemical exfoliation, not as a replacement for it.

Gentle Exfoliation with Sea Salt

Sea salt is a gentle physical exfoliant with anti-inflammatory properties that soothe skin and remove dead cells without aggressive scrubbing. Mix two teaspoons of sea salt with four teaspoons of raw honey, apply it to the affected area, leave it for 15 minutes, then rinse with warm water. Raw honey adds moisture and contains natural skin-supporting acids, so the combination both exfoliates and hydrates at the same time.

Avoid this if your KP is currently red or inflamed. Physical exfoliation on irritated follicles makes the inflammation worse, not better. Wait until your skin has settled before trying it.

Dry Brushing

Dry brushing removes dead skin cells and helps clear clogged follicles. Use a natural bristle brush in long sweeping motions before you wet your skin, and keep the pressure light. Aggressive brushing inflames the follicles you’re trying to clear, so gentleness matters here. Follow with a shower, then apply a moisturizer to the affected areas afterward.

Mild Soaps

Harsh soaps strip your skin barrier and make KP worse. Switch to a gentle, fragrance-free cleanser that cleanse without drying. Castile soap, traditionally made with olive oil, is a good option because it cleanses effectively without disrupting your barrier.

Daily Moisturizing

Moisturizing every day reduces inflammation and keeps your skin hydrated, which makes KP less visible. Coconut oil is a popular choice and it does have anti-inflammatory properties that support your skin barrier, but it’s comedogenic, meaning it can clog pores for some people. If you notice more congestion after using it, switch to a lighter option like aloe vera or jojoba oil instead. Apply your moisturizer while your skin is still slightly damp after showering for better absorption. In winter, running a humidifier in your bedroom helps your skin hold onto that hydration overnight.

Diet

There’s limited clinical evidence that diet directly treats KP, but what you eat can support your skin from the inside. A diet rich in vitamin A supports keratin regulation, which is directly relevant to KP. Foods like sweet potatoes, carrots, and leafy greens are good sources. Leafy greens, berries, and omega-3 rich foods like wild-caught salmon also help reduce inflammation generally. Staying well hydrated supports your skin barrier, though drinking more water alone won’t clear bumps.

How to Apply These Products

Applying these products correctly makes them more effective and reduces your risk of irritation.

Exfoliating Lotions

Apply on completely dry skin after your shower. Even slightly damp skin dilutes the acid and increases irritation, so wait a few minutes after drying off before applying. Use about a quarter-sized amount for each arm and more for larger areas like your thighs. Massage it in gently until it absorbs. The acid does the work, so there’s no need to scrub.

Body Washes

Apply to wet skin and let it sit for 30 to 60 seconds before rinsing. You can wash other areas while you wait. Use your hands rather than a washcloth or loofah because extra friction irritates already congested follicles.

Layering Products

Apply your exfoliating lotion first. Wait 5 to 10 minutes, then add a barrier moisturizer if your skin needs it. If you’re using both a body wash and a lotion on the same day, make sure your skin is completely dry before the lotion goes on.

Before Getting Dressed

Wait 10 to 15 minutes after applying your products before putting on clothes, especially tight ones. Otherwise the product transfers onto fabric instead of absorbing into your skin.

If You Get Irritated

Mild tingling when you first apply an acid is normal. But stinging that lasts more than a minute, persistent redness, or burning means you’re overdoing it. Stop the acid for three to five days and use only a moisturizer. Once your skin settles, restart at two to three times per week rather than daily. If the same product keeps irritating you even at low frequency, switch to a gentler acid.

What Makes Keratosis Pilaris Worse

Several everyday habits actively work against your treatment, and knowing them helps you get better results.

Hot Showers

Hot water strips your skin’s natural oils and compromises your barrier. Your skin loses moisture faster afterward, keratin builds up more easily, and your KP gets worse. Use lukewarm water instead and keep showers to 5 to 10 minutes. Pat your skin dry rather than rubbing it.

Harsh Cleansers

If your soap lathers heavily or leaves your skin feeling tight and squeaky after washing, it’s too harsh. That squeaky clean feeling means barrier damage, not cleanliness. Switch to a gentle, fragrance-free cleanser that doesn’t strip your skin.

Dry Air

Cold, dry air pulls moisture from your skin and makes KP visibly worse, which is why winter is typically the hardest season. A humidifier in your bedroom helps your skin hold onto the moisture from your products, especially overnight.

Tight Clothing

Friction from tight clothing irritates the follicles where KP forms. You don’t need to overhaul your wardrobe, but if your KP consistently flares where fabric rubs against skin, looser clothing in those areas reduces follicle irritation.

Stress

Stress triggers inflammatory responses in your skin and disrupts your barrier function. Managing stress won’t cure KP, but it can reduce how frequently you see flares.

Diet

There’s little clinical evidence that specific foods directly cause KP. But poor dietary habits, particularly low vitamin A intake, have been associated with worsening symptoms, and eating well does support your skin barrier generally. If you notice a pattern with certain foods, it’s worth tracking.

When to See a Dermatologist

Most people can manage KP with the products covered in this guide, but see a dermatologist if any of these apply.

Your KP hasn’t improved after eight to twelve weeks of consistent treatment. Your symptoms are severe, infected, or scarring. You’re not sure it’s KP, because folliculitis, eczema, and fungal infections look similar but need completely different treatment. Or KP is affecting how you live, whether that’s avoiding certain clothes or activities.

Dermatologists can’t cure KP either, but they have stronger prescription options for cases where over the counter treatment isn’t enough.

The Bottom Line

KP is genetic and there is no cure, but consistent treatment works.

Chemical exfoliants clear the keratin plugs driving the bumps. Lactic acid, salicylic acid, urea, and glycolic acid all reduce KP when used regularly, and barrier moisturizers protect your skin while the acids work. Avoiding hot showers, harsh soaps, and dry air removes the habits that slow your progress.

The bumps may return if you stop. This is long term management, and that’s what makes it work.