Why We Never Use a Blade on Your Feet (and What Works Instead)

Every so often a guest asks for "the blade" on their heels, the way a salon somewhere else once did it. The answer is no. It is written into our policy under things we can't do: use blades on your skin. This is the long version of why, and what we do instead.

A callus is skin doing its job

A callus is not dead weight. MedlinePlus says corns and calluses "are caused by pressure or friction on skin," and that "the thickening of the skin is a protective reaction." Its example is farmers and rowers, who grow them on their hands to stop blisters. Your heels grow them because you walk on them.

Take all of that protection off at once with a blade and the body starts from bare skin at the exact place under the most pressure, and one slip is a cut. A callus is also evidence: it tells us where a shoe rubs.

What the foot doctors say about cutting

The do-not lists agree. The NHS: "do not try to cut off corns or calluses yourself." The NIDDK: "cutting and over-the-counter corn removal products can damage your skin and cause an infection." The APMA, the podiatrists' association, warns that some over-the-counter treatments "contain harsh chemicals, which can lead to burns or even foot ulcers."

The APMA does give a blade a place: large calluses "are most effectively reduced (made smaller) with a surgical blade," by a podiatrist, in the office. That is our point exactly. A blade on skin is a medical procedure, and a nail salon is not that place.

For people with diabetes or neuropathy the advice gets stricter. The NHS says that "if you have diabetes, problems with your circulation, a weakened immune system, or are an older person, do not try to treat corns and calluses yourself." The NIDDK explains why: "If you have nerve damage, these patches can become ulcers." The APMA says a diabetic foot ulcer "occurs in approximately 15 percent of patients with diabetes." A person with neuropathy may not feel a blade go too deep. That is why our check-in asks you to tell your technician about diabetes, neuropathy, pregnancy or blood thinners before the water goes on.

How we actually smooth a heel

Soften first, then file. Feet soak in warm water in a spa that was disinfected after the previous guest. Softened callus comes away a little at a time under a file or foot paddle, never a blade. Files and buffers are single-use. The full walk-through is on the pedicure page; the tiers change how much time that step gets, not the method.

• Classic, $35: trimming and shaping, gentle cuticle care, light callus smoothing, a warm towel wrap, an 8-minute lotion massage and polish. For feet that are basically fine.
• Deluxe, $45: everything in the Classic, plus an exfoliating sugar scrub, deep callus treatment, warm paraffin wax, heated stone massage and a 10-minute lotion massage. Where rough heels usually land.
• Signature, $68: everything in the Deluxe and the $56 Spa, plus cooling gel, an intensive hydration treatment, a 13-minute massage and extra attention to dry heels. For heels that have been cracking.

If a heel is so thick that filing will not get there in one visit, we say so and get it most of the way. Most people find every four to six weeks keeps heels from rebuilding; it depends on how fast your skin thickens and how much you walk.

A home routine for cracked heels

Heels crack when thick, dry skin stops bending with the foot. The fix is slow and mostly about moisture. This routine comes from the AAD and the NHS; none of it is a Sora product claim.

1. Soak or shower, then file while the skin is soft. The NHS says to "soak corns and calluses in warm water to soften them" and "regularly use a pumice stone or foot file to remove hard skin." The NIDDK adds: rub gently, in one direction.
2. Moisturize on damp skin. The AAD says to apply moisturizer "when your skin is still damp," and that "ointments and creams add more moisture to skin and are more effective than lotions." Its ingredient list includes lactic acid, petrolatum and glycerin.
3. Socks over the ointment at night. The AAD's tip is gloves that keep dry skin from getting wet; cotton socks do the same job for heels and keep the ointment off your sheets.
4. Fix the shoe. The NHS says to wear "wide, well-fitting, supportive shoes with a low heel and soft sole." A heel that is open at the back rubs with every step.
5. Skip the acid callus removers if you have diabetes or poor circulation. The NIDDK says over-the-counter corn removal products "can damage your skin and cause an infection," and the NHS says not to treat calluses yourself at all.

If you have diabetes, the NIDDK suggests bringing your own nail tools to a salon pedicure; the AAD says the same for anyone who gets pedicures often. You are welcome to bring yours, and welcome to ask how ours are cleaned.

When a heel is not our job anymore

We are licensed nail technicians, not medical providers. The NHS says to see a GP if a callus "has not improved after treating it at home for 3 weeks," if the pain is severe, or if it bleeds or has pus or discharge. MedlinePlus says to call your provider if you have diabetes and notice problems with your feet, or have "continued symptoms of pain, redness, warmth, or drainage." The APMA: if calluses are "causing pain and discomfort or inhibiting your daily life in any way, see a podiatrist."

Our policy lists what we cannot do: cut or treat ingrown toenails, treat fungus, warts or corns, use blades, or work over open wounds or infections. A small, painful patch with a hard center is usually a corn, and corns are on that list.

What to ask for

Ask for the Deluxe if your heels are rough, the Signature if they are cracking, and tell your tech what is going on with your feet before the soak starts. If you have diabetes or neuropathy, say so, and expect us to be lighter with the file than you might want. If a heel is bleeding, hot or painful, see a podiatrist first; we will be here after, with a file and no blade.