You can use Theradome at at any time. Use your Theradome when your hair is damp to maximize laser phototherapy treatment. It should not be wet and be towel-dried (not blow-dried) right after a shower. This isolates thinning areas on your scalp by combing and exposing those areas that might not be accessible when dry. Exposing those areas of your scalp will provide more light and dosage to those areas. You do not need to wet your hair every time. Also, we recommend your hair being damp versus wet since this is an electronic device and excess water could get into the electronics as our helmet is not water proof. Therefore, removing excess water from your hair will reduce the risk of electrical issues with your device.
Please read our blog about SHOULD YOUR HAIR BE WET, DAMP, OR DRY