Where not to use a vibrating massager?

No vibrating massager — including high-frequency devices like the HYAKO R1 Pro — should be used directly over bones, open wounds, inflamed joints, varicose veins, the throat or spine, or any area with active nerve damage, blood clots, or broken skin.

High-frequency vibration at 5,500–7,500 RPM delivers concentrated mechanical energy to tissue, which is precisely what makes vibrating massagers effective on fascia and trigger points — and precisely what makes placement critical. Applying that energy over bony prominences, inflamed tissue, or vascular structures can aggravate rather than relieve the problem. Areas near the carotid artery in the neck, directly over the spine, and across varicose veins are particularly high-risk regardless of speed setting or attachment used.

• Bony prominences (spine, shins, elbows, kneecap) should never receive direct vibrating massager contact.
• The HYAKO silicone tip reduces impact on sensitive tissue but does not make restricted zones safe to treat.
• Active inflammation, open skin, and diagnosed blood clots are absolute contraindications for vibrating massager use.
• The throat, carotid artery region, and lymph nodes in the neck are off-limits for any vibrating massager attachment.
• Individuals with pacemakers, active cancer sites, or post-surgical wounds should consult a clinician before any vibrating massager use.