How do I start using the applicator correctly and how long does one session take? — Lyapko Duett 4.9 Ag 59 mm x 467 mm Massager - Lyapko

Duration of use according to the product card: 7–10 minutes or 15–30 minutes depending on the individual way of use; if needed the device can be held in place for 30 minutes up to 2–3 hours. It can be used on different areas of the body, one or two at a time along the spine area, and a belt, an elastic bandage or a supportive bandage can be used to hold it.

How to start (with short sessions) is not stated on the card; general recommendation (not a manufacturer's instruction): if you are trying a needle applicator for the first time, you can start with shorter sessions and go by how you feel; stop the session if you feel sharp pain or marked discomfort. Do not use on damaged skin; consult a doctor in case of pregnancy and chronic diseases. For external use only; in case of allergic reactions, stop using it and see a doctor.