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High frequency scalp consent form: who it is not for, product-free hair and aftercare

October 19, 2026 · 5 min read

High frequency is the shortest step in a head spa and has the clearest "not for you" list: a pacemaker, metal in the head or neck, epilepsy or pregnancy. Even hairspray matters. Your consent should screen for all of it before the device is switched on.

This exact form is built into SlickChart: send it to your client's phone to sign before the visit, and the high frequency aftercare goes home with them.

Say what it is, in one box

My form opens with an "about this service" box. A glass comb or rake electrode glides over the scalp, giving a gentle, low-level electrical current. It takes about 5 to 10 minutes of light tingling and buzzing, and a fresh ozone smell is normal. The scalp may feel fresh and clean for a few days, and it is often booked every 1 to 4 weeks.

Then they check today's service: high frequency on its own, an add-on to the ritual, a violet or argon electrode, an orange or neon electrode, or other.

Who it is not for, as a question they answer

Rather than burying the contraindications in a list, my form asks directly:

Pacemaker, metal implants in head/neck, epilepsy or pregnancy? High frequency isn't safe for you.

The client picks "doesn't apply to me" or "not eligible today," and the box offers a scalp massage or LED session instead, so a no comes with a yes.

Possible effects and risks

The list is specific to the device: tingling, buzzing or a light snapping sound, mild pinkness or warmth for a few hours, a brief headache or tension in some people, irritation if skin is broken or inflamed, small sparks if the electrode lifts off the skin, dryness on a dry or sensitive scalp, and a burn risk with flammable products in the hair. The box ends plainly: results vary, and hair regrowth is not promised.

A health and scalp check written for a device

Fifteen items: a pacemaker or implanted device, a heart condition, cuts, sores or scratches, Botox or fillers in the last 2 weeks, migraines, metal plates, pins or shunts, high blood pressure, a scalp infection or lice, recent scalp surgery, hairspray or an alcohol product today, epilepsy or seizures, pregnancy, a psoriasis or dermatitis flare, color or chemicals in the last 72 hours, and metal piercings or clips.

Three items are about what is on the client today: hairspray, chemicals and metal. A check starts a conversation, and what a medical condition means is for their doctor to say.

Promises that keep the session safe

Several of the promises here are practical checks, not just health history:

  • They have shared their full health history, including implants, devices and medications.
  • They have no hairspray, dry shampoo or alcohol-based product on their scalp or hair today.
  • They have removed jewelry, hair clips and pins, and will keep their hands off metal surfaces.
  • They understand tingling, buzzing and an ozone smell are normal, and the setting starts low.
  • They will speak up right away if anything stings, feels hot, or they feel dizzy or unwell.
  • It is a cosmetic service that does not diagnose or treat hair loss or disease.
  • Before and after scalp photos for their private record are OK, with social media use only with their separate OK.

Aftercare, first hours to next visit

My high frequency guide follows the days:

  • First hours: light tingling, warmth or slight pinkness, and a faint ozone smell in the hair. Leave the scalp product-free if possible. Skip heavy styling products, hairspray, dry shampoo and scratching.
  • Days 1 and 2: the scalp feels clean and calm, and a dry scalp may feel a little tight. Gentle shampoo, lukewarm water, and a light, fragrance-free serum if dry. No hot tools on the roots, very hot showers, or color and chemical services.
  • Week 1: oil and buildup slowly return. A hat or scalp sunscreen outdoors, and no harsh scrubs or tight styles that pull at the roots.
  • Next visit in 1 to 4 weeks: results are gradual and vary. Tell you about any new implant, pregnancy or medicine, and skip home high-frequency wands without guidance.

The quick rules include waiting 24 to 48 hours before color, and the ozone smell fades by the next wash.

The call-me list covers burning, blisters or a sore spot, hives, swelling or an itchy rash, redness that lasts beyond a day or spreads, and dizziness or a headache that will not settle. A worsening burn means seeing a doctor, and a sudden severe headache, slurred speech, facial droop or weakness means calling 911.

Questions to decide for your own practice

  • When a client is not eligible, do you swap in LED or massage automatically? My LED scalp therapy consent post covers that alternative.
  • Do you record which electrode and setting you used, so the next visit matches? The head spa intake form analysis plan has room for it.
  • Rules on electrical devices vary by state, so check your state board's rules on licensing and devices. This post is not legal or medical advice.

The full collection is on my head spa forms page.

Use this form with your clients

SlickChart has this exact high-frequency scalp consent and aftercare built in for subscribers. The form goes to the client's phone to sign before the visit, or they sign on your device in the room, and any contraindication they check is flagged for you. The aftercare lands in the client's own app, styled with your logo, and it all works alongside the Square account you already have. If that would save you paperwork, try SlickChart.

Prefer paper? The printable head spa set, with this high frequency consent, the protocol and the aftercare, is in my Etsy shop, ready to print or edit in free Canva.

SlickChart is the charting and client app built for solo estheticians — notes, photos, forms and payments in one place.

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