The misuse of cortisone or hydrocortisone for doping purpose in sport has been widely reported in the literature, but to date, no formal testing procedure is available and applicable in an anti-doping laboratory to detect hydrocortisone doping abuse , i.e., administration by systemic way.

The investigators therefore propose to identify biomarkers that clearly distinguish between an authorized local administration of hydrocortisone and a prohibited systemic administration, by studying the impact of 5-day administration of hydrocortisone per 2 different routes.

Clinical research with two groups of ten volunteers one group with 5 days with local administration (cream, applied to healthy skin) one group with 5 days with systemic route of administration (per os)

Inclusion Criteria:

• male subjects

  • aged 18 to 30 years
  • 18 < BMI < 28
  • participating in regular physical activity (3-5 times/week)
  • subjects not on medication

Exclusion Criteria:

asthmatic subjects or history of respiratory or cardiac pathology; use of corticosteroids in the past 6 months; high blood pressure; ulcerated lesions of the skin, acne, rosacea; Infectious state (bacterial, viral, and fungal infections); diabetic subjects; ulcerative history and other gastrointestinal disorders; lactose allergy; galactose intolerance; ulcerative colonic pathology; myastenia gravis; live vaccine kidney failure