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High-frequency uses a glass electrode carrying a rapid alternating current to generate therapeutic ozone at the skin's surface. That ozone is antibacterial—making high frequency a classic, affordable tool for treating acne and breakouts—while the gentle warmth and stimulation boost circulation and product absorption. It is a long-standing esthetician staple.
The Science
A high-frequency device passes a rapidly oscillating current through a sealed glass electrode. As the current energizes the gas inside (argon glows violet, neon glows orange) and meets the air at the skin’s surface, it generates ozone (O₃)—a naturally antibacterial and antiseptic gas.
This ozone is the key to its most popular use: treating acne and breakouts by killing surface bacteria and helping to dry and calm blemishes. The gentle thermal and electrical stimulation also boosts local circulation and oxygenation, supports lymphatic activity, and can enhance the absorption of products applied afterward. Used in direct contact (over gauze) for disinfecting, or indirect (client holds the electrode) for a stimulating facial massage, it is a versatile, inexpensive staple of professional skincare.
High frequency turns current into antibacterial ozone right at the skin's surface—a simple, affordable way to calm breakouts and boost circulation that has earned its place in facials for over a century.
The Process
Skin is cleansed and dried.
The electrode is moved over the skin (over gauze) to disinfect blemishes.
For massage, the client holds the electrode while the therapist works the skin.
No downtime; products are applied to absorb into stimulated skin.
Indications
Antibacterial ozone helps clear and calm blemishes.
Helps control surface bacteria and excess oil.
Stimulates blood flow and a healthy glow.
Stimulates the scalp in some protocols.
Why High Frequency
Ozone helps clear acne-causing bacteria.
Promotes a healthy, oxygenated glow.
Inexpensive equipment with broad utility.
Does not target pigment.
Clinical Evidence
Journal of Cosmetic Science · 2009
Reviewed ozone's antiseptic action relevant to acne management.
Journal of Cosmetic Dermatology · 2012
Noted improved local circulation following high-frequency facial treatment.
Skin Safety
| I | II | III | IV | V | VI | |
|---|---|---|---|---|---|---|
| Direct (Disinfect) | Safe | Safe | Safe | Safe | Safe | Safe |
| Indirect (Massage) | Safe | Safe | Safe | Safe | Safe | Safe |
High frequency is electrical/ozone-based and safe on all skin tones (I–VI). It does not target pigment.
Safety
Never use over or near products containing alcohol or after flammable solutions—the spark can ignite them. Keep the electrode in contact to avoid uncomfortable sparking, and avoid metal jewellery in the area. Do not use on broken skin or active rosacea, and limit ozone exposure time per protocol.
✕ Not recommended during pregnancy
For Operators
| Area | Energy | Pulse | Spot | Freq | Cooling | Passes |
|---|---|---|---|---|---|---|
| Acne (direct) | Low–med | 3–5 min | Mushroom electrode | HF | None | Spot/zone |
| Massage (indirect) | Low–med | 5–10 min | Saturator | HF | None | Full face |
A simple antibacterial step among modern options.
LED antibacterial light.
✓ Pros
Drug-free, deeper bacterial kill.
✕ Cons
Higher equipment cost than high frequency.
Deep-cleansing current.
✓ Pros
Lifts pore congestion.
✕ Cons
Different mechanism; not antibacterial like ozone.
High frequency is the simple, affordable antibacterial finisher in a facial; blue light and galvanic add deeper, complementary acne benefits.
Equipment
Operator Training
Training covers direct vs indirect technique, electrode selection, the critical flammability/alcohol safety rule, ozone exposure limits and contraindication screening.
FAQ
The electrode generates ozone at the skin’s surface, which is antibacterial—helping to kill acne bacteria and dry and calm blemishes.
“High frequency is the cheapest, most reliable acne finisher we own. A few minutes after extractions and breakouts calm down noticeably.”
— Petra N., Esthetics Studio, Prague
Request specifications, pricing and a tailored recommendation from our equipment specialists.
High-frequency facial machines use a glass electrode and rapid alternating current to generate antibacterial ozone at the skin's surface—a classic, affordable way to treat acne and breakouts, control oil and boost circulation. Used in direct (disinfecting) or indirect (massage) mode and safe on all skin tones, professional high-frequency equipment from Lazzybeauty is CE-certified and supplied with operator training and technical support.
