Lucis (YC X25) (@lucis_life) — Twitter Score 14 out of 1000

Lucis YC X25 is an AI-enabled preventive health platform that converts blood-test and biomarker results into personalized health scores, longitudinal tracking, and medically reviewed action plans for European users. Lucis YC X25's Twitter Score is 14 out of 1000 as of September 2026, ranking #69,814 among 486,860 tracked accounts.

Lucis YC X25 was co-founded by Maxime Berthelot, Baptiste Debever, and Max Guerois and is listed by Y Combinator as an active Spring 2025 company. The platform states that its service is preventive and is not a medical device, positioning it as a tool for users to act on health data before clinical problems arise.

Lucis YC X25 closed an $8.5 million seed round led by General Catalyst, with participation from Y Combinator, Kima Ventures, Motier Ventures, Circle. Co, and North South Ventures, as reported on December 16, 2025. It subsequently raised a $20 million Series A led by Singular, with further participation from General Catalyst and Y Combinator, as reported on May 26, 2026. As of that date, Lucis YC X25 reported more than 10,000 users across France, the UK, Ireland, and Portugal, along with partnerships with Eurofins and Randox laboratory groups.

Lucis YC X25's account has published 115 posts and has 4,925 followers as of September 2026. The account has been mentioned by 7 accounts, with 11 total mentions.

Who follows Lucis YC X25 on X?

The accounts that follow Lucis YC X25 include 59 founders, 25 angel investors and 15 influencers, among them Stani, Julien B, Maria, dcbuilder.eth, Hildobby and Brycent.