No credit or debit card required. All Scalar Light sessions are administered exclusively upon photographs of people, animals, plants and objects. Please register for the FREE Standardized Scalar Light Session prior to purchasing any scalar light sessions. Your experience with the FREE Standardized Scalar Light Session will allow you to judge the value of the various scalar light sessions prior to purchase. You must be at least 18 years of age in order to register or purchase any Scalar Light session. There are no in-person Scalar Light sessions.