Rough little bumps across the upper arms are something I have dealt with since my late teens. They flare up in winter, settle down in summer, and become irritatingly obvious whenever I wear a sleeveless top in Brisbane's warm months. After years of over-exfoliating and ruining my moisture barrier, I now follow a gentler routine that keeps the texture under control without leaving my arms tight, flaky, or stinging.
This is not a miracle cure. Keratosis pilaris is a genetic condition where keratin plugs the hair follicle, creating those signature rough patches. What I can do is soften the bumps, calm the redness, and stop making the surrounding skin angry in the process. The strategy that finally worked for me combines smart exfoliation, barrier-friendly moisturisers, and a few Australian-specific adjustments I wish someone had told me years ago.
Keratosis pilaris, sometimes called "chicken skin" by people who like nicknames, shows when dead skin cells and keratin build up inside the hair follicle. The plug creates a tiny raised bump, often with a faint pink halo around it on fair skin or a brownish mark on deeper tones. It is harmless, non-contagious, and tends to run in families, often alongside eczema or general sensitivity.
What it is not, importantly, is body acne. I treated mine like pimples for years, layering benzoyl peroxide and salicylic acid cleansers on my arms, which only made the surrounding area rough and uncomfortable. True keratosis pilaris does not respond to acne routines, and aggressive acne treatments strip the lipids your arms need. Once I accepted that my arms needed a different kind of care from my face, everything shifted.
The condition also worsens with dehydration, so my worst flares came during Melbourne's dry winters and during long-haul flights out of Sydney, where the cabin air quietly leached moisture from my skin for hours. Recognising the trigger pattern was the first real step.
I thought exfoliation meant scrubbing harder. For two years I used gritty sugar scrubs and a stiff loofah every other day, convinced I was buffing the bumps into submission. The result was red, irritated arms with a compromised moisture barrier that stung when I applied anything other than plain water. The bumps were still there, just now surrounded by angry skin.
Aggressive physical exfoliation creates micro-tears in the skin, especially on areas like the upper arms where the skin is already thinner than you might expect. Those tiny injuries trigger inflammation, which makes the redness more visible and, ironically, makes the bumps look worse. Chemical exfoliation works differently. It loosens the bonds between dead skin cells so they shed naturally, without forcing the skin to fight back.
I also used to skip body moisturiser entirely, treating my arms like an afterthought. That habit had to die. A dry arm is an arm that will produce more keratin, because dehydrated skin accelerates the plug-forming cycle. The lesson was simple: exfoliate gently, moisturise generously, and never skip either step.
My routine runs on a simple rhythm. In the shower, I use a low-pH body wash with no sulphates, and I avoid steaming-hot water because heat strips the skin's natural lipids. On exfoliating nights, I use a leave-on treatment with lactic acid or urea, applied to clean, dry arms after my shower. These ingredients dissolve the keratin plug slowly rather than scraping it off.
For the rest of my routine, I rely on body creams rather than thin lotions, because lotions tend to evaporate quickly in dry air. My non-negotiable step is a ceramide-rich cream applied within three minutes of stepping out of the shower, while my skin is still slightly damp. This locks water into the upper layers of the skin and helps rebuild the lipid barrier that keratosis pilaris keeps disrupting.
During a flare, I drop every active ingredient for a few days and go back to basics: gentle cleanser, plain ceramide cream, no scrubbing. Skin cycling applies just as much to the body as to the face. Pushing through irritation only extends the recovery time.
Urea is the single most effective ingredient I have tried. In low concentrations (around five to ten percent) it acts as a humectant, pulling water into the skin. In higher concentrations (twenty percent or more) it becomes a keratolytic, breaking down the keratin plug itself. I keep both formats in rotation depending on the season.
Lactic acid is my second favourite. It is a larger molecule than glycolic acid, so it penetrates more slowly and tends to sting less on sensitive skin. I use a ten percent lactic acid body serum twice a week during cooler months and drop it entirely in the height of summer, when humidity in coastal cities like Sydney does most of the exfoliating work for me.
A short list of ingredients worth looking for on the back of the bottle:
I avoid high-strength glycolic acid and physical scrubs altogether. They were the worst offenders in my old routine and they never delivered the smoothness I was chasing.
Australia's UV index is brutally high for most of the year, even in Hobart, and that has real consequences for keratosis pilaris. Sun exposure thickens the outer layer of the skin as a defence mechanism, which can make the bumps feel more pronounced in summer even as the humidity temporarily softens them. I never apply AHA or BHA treatments to my arms in the morning, because those acids increase photosensitivity. Treatments go on at night, with SPF applied the next day if my arms are going to see sunlight.
Water hardness also matters. In parts of Melbourne and Adelaide, the tap water leaves mineral deposits on the skin that can worsen dryness. I noticed a real difference when I switched to a shower filter on my main bathroom, but a simpler trick is to do a final cool rinse to wash off the residue.
Seasonal adjustments I rely on:
The Australian pharmacy market makes this easier than it sounds. Chemist Warehouse and Priceline both stock the core ingredients I rely on, often at lower prices than overseas equivalents, so I never have to import anything.
I keep a separate body exfoliating mitt for my arms and wash it after every use. Tools that sit damp in a bathroom quickly grow bacteria, and applying anything through a dirty tool is a fast path to folliculitis, which looks similar to keratosis pilaris but behaves very differently. The same hygiene logic applies to the sponges and brushes I use for makeup, and I have written about how cleaning your makeup sponges regularly extends their lifespan and keeps bacteria away from skin that is already prone to congestion. Tools are only as good as the way you store and clean them.
Two more habits made a quiet difference. First, I changed my laundry detergent to a fragrance-free formula, because fragrance is a common trigger for the redness that surrounds KP bumps. Second, I wear loose cotton sleeves whenever I can, since tight synthetic fabrics trap sweat against the follicle and create a low-grade irritation that compounds the texture.
If the redness across your face also bothers you, the same principle of mineral, barrier-friendly formulas applies, and my guide on mineral makeup for redness-prone skin walks through the options I trust for sensitive skin. The same ingredients that calm facial redness tend to work on body flare-ups too.
Most mild cases of keratosis pilaris respond well to a steady routine, but there are situations where a professional opinion saves months of frustration. If the bumps become intensely itchy, ooze, or look infected rather than simply rough, a dermatologist can rule out folliculitis, fungal infections, or eczema. Persistent redness that does not fade after a flare also warrants a closer look.
A dermatologist may prescribe a topical retinoid to regulate cell turnover, or a short course of steroid cream for genuinely inflamed patches. In-clinic treatments like gentle chemical peels can help when at-home products plateau, though I would only consider them once a solid barrier routine is already in place. Going in for a peel on a stripped, reactive arm is a recipe for weeks of recovery.
The honest truth is that keratosis pilaris management is a long game. The bumps rarely vanish completely, and that is okay. With the right acids, a barrier-first approach, and a routine tuned to Australia's climate, my arms are smoother, calmer, and far less red than they were a few years ago, without ever feeling tight or stripped.