Strawberry skin, explained
What Is Keratosis Pilaris?
Keratosis pilaris (KP) is a common, harmless skin condition caused by a buildup of keratin — a protein your skin makes naturally — inside the hair follicles. The buildup forms small, rough bumps, most often on the upper arms, thighs, cheeks or buttocks.
It is sometimes nicknamed <em>strawberry skin</em>, because the pattern of dotted follicles looks a little like the seeds on a strawberry. It is not an infection, not a hygiene problem, and not something you caused. It is the way some skin handles keratin, and it runs in families.
KP cannot be cured, but the texture is manageable. What changes it is dissolving the keratin plug and keeping the skin around it hydrated — consistently, over weeks rather than days.
Upper arms most often, then thighs, buttocks and cheeks. Usually both sides, in the same pattern.
Rough, dry, slightly raised. Sometimes pink or red around each bump, sometimes not.
No. KP is harmless. It is a cosmetic and comfort issue, not a medical risk.
Managed, not cured. Keep the routine and the texture stays down.
Why it happens
Keratin is supposed to shed. In KP skin it stays behind and blocks the follicle opening. That plug is the bump.
Keratin stays behind
Normally old keratin sheds off the surface. In KP it collects inside the follicle opening and hardens into a plug, so the hair and the skin below it sit under a lid.
It runs in families
KP has a genetic component. If a parent or sibling has it, you are more likely to have it too — which is why it tends to show up early and stick around.
Dry skin and eczema
KP often appears alongside dry skin or eczema. A weakened barrier makes the roughness more pronounced, which is why hydration is half the job.
Worse in winter
Dry indoor air makes it rougher and more visible in the colder months, and it often calms in summer. For many people it eases with age.
Four things you have probably been told
Most KP advice online is acne advice in disguise. It is a different blockage, so it needs a different answer.
What actually helps
Three things, in this order: dissolve the plug, rebuild the barrier, repeat long enough for it to hold.
Chemical exfoliation
AHAs such as glycolic acid and lactic acid break the bonds holding dead keratin together, so the plug loosens instead of being sanded at from the outside. BHAs such as salicylic acid are oil-soluble, so they work down inside the follicle opening itself.
Moisture that stays
Exfoliation without hydration gives you smoother bumps on drier skin. Ceramides rebuild the barrier itself, urea softens hardened keratin while it hydrates, and hyaluronic acid holds water in the layers above. Niacinamide takes the redness down while that happens.
Consistency, not intensity
There is no fast version. Skin feels smoother within the first week; the bumps take longer, and week two is where almost everyone doubts it. By week eight the change shows in a photo, not just to your fingers. More product per session does not shorten that — more sessions do.
Every ingredient we use and why it is in the formula: Our Ingredients.
Questions people actually ask
Short answers first. If you want the reasoning, it follows underneath.
Is keratosis pilaris contagious?
No. Keratosis pilaris is not contagious in any way. It cannot be passed on by touch, shared towels, swimming pools or close contact.
It happens inside your own hair follicles, where keratin your body produces stays behind instead of shedding. There is nothing to catch and nothing to pass on.
Does keratosis pilaris go away on its own?
Sometimes it eases with age, but it rarely disappears on its own and it usually returns without a routine. Many people find it calms in summer and comes back in winter.
With consistent chemical exfoliation and hydration the texture stays down. Stop, and the follicles refill within four to six weeks — which is why we talk about managing KP rather than curing it.
What's the difference between KP and acne?
Different blockage, different treatment. Acne is a follicle blocked by excess oil and bacteria; KP is a follicle blocked by a plug of keratin.
KP bumps are usually rough, dry, uniform in size and spread evenly over an area such as the upper arms. Acne varies in size, can be inflamed or filled, and responds to treatments aimed at oil and bacteria — treatments that do very little for a keratin plug.
Can men and women both get KP?
Yes. Keratosis pilaris affects all genders, all skin tones and all ages, and it looks the same on everyone: the same rough follicular bumps in the same places.
Everything we make is unisex for exactly that reason. The follicle does not care whose arm it is on.
Does diet affect keratosis pilaris?
There is no established link between diet and keratosis pilaris. No food causes it, and no food has been shown to clear it.
General skin health matters — staying hydrated, not drying the skin out — but KP is driven by how your follicles handle keratin, and that is not something you can eat your way out of. Be sceptical of any diet sold as a KP cure.
At what age does KP usually start?
KP most often appears in childhood or the teenage years, and it can start at any age. It frequently becomes more noticeable during adolescence.
For many people it becomes less pronounced with age, though the pattern varies from person to person and tends to follow the seasons.
Where to start
One set lasts eight weeks. Pick by how rough the skin is now, not by how much you want it gone.
The two steps that do most of the work: cleanse without stripping, exfoliate chemically. Enough for skin that is more texture than bumps.
See the Essential SystemExfoliation plus barrier repair, so the skin holds moisture between sessions instead of drying out as it smooths.
See the Maintenance SystemAll six steps in the order they are meant to be used: two acids in different layers, barrier repair, redness support. The full eight weeks.
See the Complete SystemThis page is for general information and isn't a substitute for advice from a dermatologist or doctor. If your skin is red, painful, or changing in ways that worry you, please see a professional.