Short answer: is iTeraCare safe? We can’t promise anything is risk-free for everyone, and neither can anyone else. Here is what is known and how we reduce the risk.
Is iTeraCare safe?
- Non-ionizing. Terahertz waves are non-ionizing: they don't carry enough energy to remove electrons from atoms the way X-rays do.[1][3] Non-ionizing radiation mainly acts through heating, and intense exposure can damage tissue.[3]
- Research on limits is limited. A 2021 review says terahertz therapy is at an early stage and data on safe limits is limited.[2] Published exposure limits were extrapolated from nearby microwave and infrared ranges.[5]
- Heat. A session is warmth. As with a hot-water bottle, skin can be irritated by too much heat, so we keep to the recommended time and settings, and you can ask us to stop at any moment.
- Who should ask a doctor first. Anyone who is pregnant, has a pacemaker or another implanted device, a medical condition, or reduced feeling in the skin.
What we do
We ask about your health before every first session, explain what will happen, keep to the timings, and stay with you throughout. Stop and tell us straight away if anything feels uncomfortable.
Sources
- Wang et al. (2021), THz Sensing of Human Skin: A Review of Skin Modeling Approaches, Sensors 21(11)
- Cherkasova et al. (2021), Cellular effects of terahertz waves, Journal of Biomedical Optics
- CDC, About non-ionizing radiation
- Do in vivo terahertz imaging systems comply with safety guidelines?
Written by the Prife iTeraCare team and last reviewed on 10 October 2026. This is general information, not medical advice, and it does not replace your doctor or physiotherapist. A session is a wellness experience, not a medical treatment.
Book a free session and see iTeraCare for yourself at our Anna Nagar centre.