Lucis

Lucis is a Paris-based preventive health company that pairs laboratory biomarker testing with an AI-driven health companion application. Members complete a health questionnaire covering goals, symptoms, history and lifestyle, optionally connect wearables, and are tested twice a year at partner laboratories, with blood, urine and saliva collected in a single visit. The panels cover more than 100 biomarkers on the first comprehensive assessment and 60+ on a six-month follow-up check, grouped into categories such as kidney health, inflammation, nutrients, metabolic, cardiac, liver health, minerals, adrenal function, thyroid hormones, bone health, sexual hormones, iron metabolism, hematology, immunity and prostate markers, and scored across 11 body systems.

Results are presented in a private dashboard with simplified wellness indices and plain-language explanations, alongside a personalized action plan produced by healthcare professionals spanning nutrition, supplementation, sleep, physical activity, environment and mental health. The AI companion combines biomarker results, longitudinal data and medical context, refreshing recommendations as new data arrives; outputs are reviewed by physicians. Lucis states that its content is educational and does not replace medical diagnosis, prescription or advice, and positions the structured data as a way for doctors to surface risks early and prepare appointments.

The company reports GDPR compliance, ISO 27001 certification for information security and HDS-certified hosting. Membership is open to people aged 18 and over.