Tiny rough bumps on my arms

You run your hand down the back of your arm. The skin feels like fine sandpaper. The bumps may look red, brown, or the same shade as your skin.

Each bump sits where a hair grows out. Keratin, a tough protein in skin, builds up and plugs the tiny opening. That plug traps the hair and forms a small, hard bump.

This is very common and often runs in families. Many people first notice it as a child or teen. Cold, dry air can make the skin feel rougher.

When to see someone

See a doctor if the bumps hurt, itch badly, or leak pus. Get checked if the skin turns hot, red, and puffy. A rash that is new to you in adult years is also worth a visit.

Below is a list of home remedies that people use for this kind of skin. Each one carries a grade for how much research stands behind it. A low grade means we found little proof either way, so ask your doctor first.

Keratosis Pilaris: natural remedies and the evidence behind them

8 options · 3 graded B · 5 traditional or ungraded

Those rough, bumpy patches — what's your preferred way to tackle them?

Dissolve the keratin plugs with gentle exfoliating acids (AHA/BHA lotions)

Salicylic Acid (Willow Bark)
Supported by smaller clinical studies· Centuries of traditional use (Evidence grade B · Traditional use long-standing)Long-standing traditional staple
A beta-hydroxy acid that dissolves the keratin plugs inside each follicle
Why this matches
You want the rough bumps smoothed. Salicylic acid is an oil-soluble BHA that gets into the follicle and loosens the keratin plug behind each bump, so the skin gradually feels less sandpapery.
Why try it
Salicylic acid is one of the most commonly recommended keratolytics for keratosis pilaris and shows up across dermatology reviews as an effective, well-tolerated topical for refining the bumpy texture. Because it is oil-soluble, it complements water-soluble AHAs like lactic and glycolic acid.
Dose or use
Apply a salicylic-acid lotion or wash (commonly around 2%) to the affected areas once daily, usually after bathing. Start every other day if your skin feels tight or stings, and follow with moisturizer.
Time to results
Texture often begins to smooth within about 4-8 weeks of steady use.
Key study
Systematic Review (2022, PMID 32886029): Treatment of keratosis pilaris and its variants: a systematic review — identified salicylic acid among the topical treatments that improved keratosis pilaris lesions, alongside other keratolytics, though most included studies were small.
Caution
Can cause dryness, stinging, or peeling, especially on sensitive, freshly shaved, or broken skin. Exfoliated skin is more sun-sensitive, so use sunscreen. Avoid applying to large body areas during pregnancy without checking with your doctor first.
Glycolic Acid (Sugar Cane)
Supported by smaller clinical studies· Centuries of traditional use (Evidence grade B · Traditional use long-standing)Long-standing traditional staple
A small-molecule AHA that speeds cell turnover
Why this matches
Since your goal is smoother skin, glycolic acid gives you a second exfoliating option. It's a small alpha-hydroxy acid from sugar cane that helps lift away the dead cells clogging the follicles.
Why try it
Glycolic acid is a plant-derived AHA often chosen for unclogging plugged follicles and refining rough texture. Its small molecule size lets it work on the surface layer quickly.
Dose or use
Apply a glycolic-acid lotion, pad, or cream to the bumpy areas once daily or every other day. Introduce it slowly to see how your skin responds.
Time to results
Most people notice smoother texture after several weeks of regular use.
Key study
Traditionally used as an exfoliant for rough, bumpy skin like keratosis pilaris; this specific use has not been confirmed here by a controlled clinical trial.
Caution
May sting or redden sensitive skin and increases sun sensitivity, so wear sunscreen. Avoid layering it with retinol on the same night unless your skin tolerates both, and keep it off broken skin.
Lactic Acid Topical
Supported by smaller clinical studies· Centuries of traditional use (Evidence grade B · Traditional use long-standing)Long-standing traditional staple
An AHA that dissolves the keratin plugs behind the bumps
Why this matches
You want the rough bumps gone. Lactic acid is an alpha-hydroxy acid that gently loosens the built-up keratin plugging each follicle, so the skin feels smoother over time.
Why try it
Alpha-hydroxy acids like lactic acid are one of the most widely used at-home approaches for the bumpy skin of keratosis pilaris. It also draws in moisture, so it exfoliates without over-drying.
Dose or use
Apply a lactic-acid lotion or cream (often around 10-12%) to the affected areas once daily, usually after bathing. Start every other day if your skin stings.
Time to results
Texture often starts smoothing within 4-6 weeks of steady daily use.
Key study
Traditionally and widely used for the rough bumps of keratosis pilaris; this specific use has not been confirmed here by a controlled clinical trial.
Caution
Can cause tingling, stinging, or irritation, especially on broken or freshly shaved skin. AHAs increase sun sensitivity, so use sunscreen. Keep it away from the eye area.

My skin feels dry and sandpapery — deeply moisturize it first

Lactic Acid Topical
Supported by smaller clinical studies· Centuries of traditional use (Evidence grade B · Traditional use long-standing)Long-standing traditional staple
An AHA that dissolves the keratin plugs behind the bumps
Why this matches
You want the rough bumps gone. Lactic acid is an alpha-hydroxy acid that gently loosens the built-up keratin plugging each follicle, so the skin feels smoother over time.
Why try it
Alpha-hydroxy acids like lactic acid are one of the most widely used at-home approaches for the bumpy skin of keratosis pilaris. It also draws in moisture, so it exfoliates without over-drying.
Dose or use
Apply a lactic-acid lotion or cream (often around 10-12%) to the affected areas once daily, usually after bathing. Start every other day if your skin stings.
Time to results
Texture often starts smoothing within 4-6 weeks of steady daily use.
Key study
Traditionally and widely used for the rough bumps of keratosis pilaris; this specific use has not been confirmed here by a controlled clinical trial.
Caution
Can cause tingling, stinging, or irritation, especially on broken or freshly shaved skin. AHAs increase sun sensitivity, so use sunscreen. Keep it away from the eye area.
Coconut Oil
Centuries of traditional use· Human evidence not yet assessed (Evidence grade not assigned · Traditional use long-standing)Long-standing traditional staple
Emollient oil that softens dry, rough, bumpy skin
Why this matches
You want to soften the dry, flaky skin. Coconut oil is a rich emollient that seals in moisture, making the bumps feel less rough between exfoliating.
Why try it
The library documents coconut oil for dry-skin conditions like eczema and psoriasis. Because keratosis pilaris looks and feels worse on dry skin, keeping the area moisturized helps soften the plugs.
Dose or use
Massage a thin layer of virgin coconut oil into the affected areas after bathing, while skin is still damp, once or twice daily.
Time to results
Skin usually feels softer within days; the bumpy texture eases more gradually.
Key study
Traditionally used as an emollient for dry, rough skin; its use for keratosis pilaris specifically has not been confirmed here by a controlled clinical trial.
Caution
Can clog pores for some people and may trigger breakouts on acne-prone areas like the face. Do a small patch test first if your skin is sensitive.
Shea Butter
Centuries of traditional use· Human evidence not yet assessed (Evidence grade not assigned · Traditional use long-standing)Long-standing traditional staple
Rich butter that deeply hydrates flaky, rough skin
Why this matches
If you prefer a thicker balm to an oil, shea butter is a rich emollient that hydrates and softens the dry, flaky skin that makes keratosis pilaris feel rough.
Why try it
Shea butter is a long-used natural emollient for dry, keratinized skin. Keeping the area well moisturized softens the bumps and eases the sandpapery feel.
Dose or use
Warm a small amount between your fingers and massage into the affected areas after showering, once or twice daily.
Time to results
Skin feels softer quickly; roughness settles over a few weeks of daily use.
Key study
Traditionally used as a rich emollient for dry, rough skin; this specific use for keratosis pilaris has not been confirmed here by a controlled clinical trial.
Caution
Generally well tolerated, but patch test first if you have a tree-nut allergy or very acne-prone skin, as heavy butters can occasionally clog pores.

I'd rather skip the acids — buff and soften my skin with simple, natural care

Coconut Oil
Centuries of traditional use· Human evidence not yet assessed (Evidence grade not assigned · Traditional use long-standing)Long-standing traditional staple
Emollient oil that softens dry, rough, bumpy skin
Why this matches
You want to soften the dry, flaky skin. Coconut oil is a rich emollient that seals in moisture, making the bumps feel less rough between exfoliating.
Why try it
The library documents coconut oil for dry-skin conditions like eczema and psoriasis. Because keratosis pilaris looks and feels worse on dry skin, keeping the area moisturized helps soften the plugs.
Dose or use
Massage a thin layer of virgin coconut oil into the affected areas after bathing, while skin is still damp, once or twice daily.
Time to results
Skin usually feels softer within days; the bumpy texture eases more gradually.
Key study
Traditionally used as an emollient for dry, rough skin; its use for keratosis pilaris specifically has not been confirmed here by a controlled clinical trial.
Caution
Can clog pores for some people and may trigger breakouts on acne-prone areas like the face. Do a small patch test first if your skin is sensitive.
Dry Brushing
Centuries of traditional use· Human evidence not yet assessed (Evidence grade not assigned · Traditional use long-standing)Long-standing traditional staple
Mechanical exfoliation that smooths bumpy skin over time
Why this matches
If you'd rather smooth the bumps physically than with acids, dry brushing sweeps away the dead surface cells that build up around the follicles.
Why try it
The library entry names keratosis pilaris (bumpy skin) directly, noting it smooths texture over time. It's a low-cost, drug-free way to keep the rough patches buffed down.
Dose or use
Using a firm natural-bristle brush on dry skin, sweep gently over the bumpy areas in short strokes before bathing, a few times a week. Follow with moisturizer.
Time to results
Smoother texture builds gradually over several weeks of regular brushing.
Key study
Listed in the library as a traditional use for keratosis pilaris (bumpy skin, smooths texture over time); not confirmed here by a controlled clinical trial.
Caution
Brush lightly; too much pressure can scratch or inflame the skin and worsen the bumps. Avoid on broken, sunburned, or actively irritated skin.
Shea Butter
Centuries of traditional use· Human evidence not yet assessed (Evidence grade not assigned · Traditional use long-standing)Long-standing traditional staple
Rich butter that deeply hydrates flaky, rough skin
Why this matches
If you prefer a thicker balm to an oil, shea butter is a rich emollient that hydrates and softens the dry, flaky skin that makes keratosis pilaris feel rough.
Why try it
Shea butter is a long-used natural emollient for dry, keratinized skin. Keeping the area well moisturized softens the bumps and eases the sandpapery feel.
Dose or use
Warm a small amount between your fingers and massage into the affected areas after showering, once or twice daily.
Time to results
Skin feels softer quickly; roughness settles over a few weeks of daily use.
Key study
Traditionally used as a rich emollient for dry, rough skin; this specific use for keratosis pilaris has not been confirmed here by a controlled clinical trial.
Caution
Generally well tolerated, but patch test first if you have a tree-nut allergy or very acne-prone skin, as heavy butters can occasionally clog pores.

Work at the source — reset skin cell turnover and check the vitamin A connection

Retinol (Vitamin A Topical)
Centuries of traditional use· Human evidence not yet assessed (Evidence grade not assigned · Traditional use long-standing)Long-standing traditional staple
Vitamin A topical that normalizes skin cell turnover
Why this matches
You want to smooth the bumps at the source. Topical retinol encourages skin cells to turn over and keeps follicles from getting plugged, which is what forms the rough bumps.
Why try it
The library entry lists improving skin smoothness and texture among retinol's effective uses, and normalizing keratinization is a standard way to address the follicular plugging behind keratosis pilaris.
Dose or use
Apply a pea-sized amount of a low-strength retinol to affected areas at night, 2-3 times a week to start, building up as tolerated. Moisturize afterward.
Time to results
Retinol works gradually; expect 8-12 weeks before texture visibly changes.
Key study
Library copy documents retinol as effective for skin smoothness and texture; this specific use for keratosis pilaris has not been confirmed here by a controlled clinical trial.
Caution
Commonly causes dryness, flaking, and irritation early on, and increases sun sensitivity, so use sunscreen. Not recommended during pregnancy or breastfeeding.
Vitamin A Deficiency
Centuries of traditional use· Human evidence not yet assessed (Evidence grade not assigned · Traditional use long-standing)Long-standing traditional staple
Low vitamin A can cause rough, thickened, bumpy skin
Why this matches
You're looking at the inside-out angle. Low vitamin A is a classic driver of rough, thickened, bumpy skin, so it's worth making sure your intake is adequate.
Why try it
The library entry lists thickened, dry, or rough skin (hyperkeratosis) as a sign of vitamin A deficiency, which closely mirrors the follicular bumps of keratosis pilaris. Vitamin A also supports normal skin cell turnover.
Dose or use
Focus on vitamin A-rich foods like liver, eggs, and dairy, plus beta-carotene sources such as carrots, sweet potato, and spinach. Ask a clinician before taking high-dose supplements.
Time to results
Skin changes from correcting a true deficiency unfold over weeks to months.
Key study
Vitamin A deficiency is a well-recognized cause of follicular hyperkeratosis; keratosis pilaris is not caused by deficiency alone, and correcting intake has not been confirmed here as a treatment for it.
Caution
Vitamin A is fat-soluble and builds up in the body; high-dose supplements can be toxic and are unsafe in pregnancy. Don't self-prescribe large doses, and get levels checked first.

Evidence grades describe the strength of published research for Keratosis Pilaris, not a promise of results. Nothing here is medical advice — talk to your clinician before starting anything, especially alongside prescription medication.