Crystal is a private medical center in Saint Petersburg specializing in addiction treatment and related mental health care. The clinic supports people experiencing alcohol or drug dependence, withdrawal symptoms, and psychological difficulties associated with substance use, with care available at its facility or through home visits. It operates around the clock and states that patient inquiries and treatment are confidential.

Services include medical assessment, consultations with addiction specialists, psychiatrists and psychotherapists, urgent home visits, detoxification, withdrawal management, and treatment for alcohol and drug dependence. The center also offers medication-based and other forms of alcohol and drug coding, support for recovery from binge drinking, and rehabilitation programs that include 12-step approaches and other named models. Patients may receive recommendations for continued treatment at home, while inpatient care can be advised when needed. The clinic also describes family consultations, support for relatives, and assistance with rehabilitation and social reintegration. Its team provides guidance through different stages of care, from initial assessment to follow-up.