Some clinics may prohibit bathing or sauna use due to the sensitivity of Botulinum Toxin formulations to heat. However, since the toxin is exposed to body temperature immediately after injection, it's unlikely that bathing or using a sauna afterwards would significantly alter its effectiveness. The half-life of Botulinum Toxin is approximately 10 hours, and after 24 hours, only about 5% is detectable within the muscle2. If you're concerned, it's recommended to wait at least 24 hours before taking a bath or using a sauna. In our clinic, we recommend refraining from bathing or using a sauna on the same day for the protection of the treated area. However, you can take a shower on the same day.