Work out which problem you have first
Below the neck, “exfoliate” gets used for three complaints that behave nothing alike. Dull, ashy-looking shins and forearms are surface build-up. The fine rough bumps a lot of people get on their upper arms and thighs are plugs sitting in the follicle. Hard, cracked heels are thickened skin doing its job a bit too well. Buying one product for all three is why most people conclude body exfoliation does not work.
Dull limbs: physical, and less often than you think
This is the one case where a scrub is the right tool. Sugar or salt in an oil base lifts the loose surface layer and the result shows up immediately, which is most of the appeal. The mistake is frequency: twice a week is plenty on arms and legs, and a body that is scrubbed daily tends to look worse, not better, because you never stop stripping it. Use it before shaving rather than after, and follow with a moisturiser while skin is still damp — the moisturiser is doing at least half the visible work.
If a scrub hurts, it is not working harder. Grit sharp enough to scratch is doing damage you will see later as irritation, not smoothness.
Rough upper arms: chemical, and it takes weeks
Scrubbing bumps does almost nothing, because the plug is below the surface and physical grit only reaches the top of it. This is what beta and alpha hydroxy acids are for — salicylic acid gets into oil, lactic acid works on the surface, and the two together in a body lotion is the standard answer. Expect this to be slow. Applied daily, most people are looking at three to six weeks before the texture changes, and it comes back if you stop, because nothing here is a cure — it is maintenance.
CeraVe Salicylic Acid Lotion for Rough & Bumpy Skin
8 oz · fragrance-free · 4.6 out of 5 · 25,141 ratings
Salicylic and lactic acid in a ceramide base, with niacinamide to keep it from feeling stripping — which is the combination the bumpy-arms case actually calls for. It is fragrance-free and allergy-tested, worth something on limbs you also shave. Be clear about what it is not: a lotion, not a scrub. It will do nothing useful for hard heels, and if your complaint is dullness rather than bumps, the scrub in the section above is the cheaper and faster answer.
Check the current price We don’t print prices or discounts in articles — they go stale. The link shows what it costs right now.Hard heels: neither, really
Heels are the case where acids and scrubs both underperform, because the problem is depth of callus rather than build-up on top of it. Urea at a high percentage softens thickened skin far better than an AHA lotion will, and the mechanical work is better done with a foot file on dry skin than with grit in the shower. Soak, file gently, then seal with the urea cream and socks overnight. Filing wet skin removes more than you intend and it grows back thicker.
One rule covers all three cases: if skin is broken, freshly shaved, sunburnt or already irritated, none of this is the week to start. Exfoliation of any kind on skin that is already unhappy makes it unhappier, and the fastest route back to smooth limbs is usually a fortnight of doing nothing but moisturising. If a patch stays painful, cracked or inflamed, that is a question for a doctor rather than a shopping list.