The Food and Drug Administration (FDA) has begun 2026 with a clear signal to the direct‑to‑consumer testing industry: self‑collection devices remain firmly within the agency’s regulatory reach, notwithstanding the 2025 court ruling on laboratory developed tests (LDTs). Last week, the agency published warning letters previously issued to four companies—Genetrace, Genovate, Germaphobix and ProDx Health—selling human immunodeficiency virus (HIV) tests that rely on unauthorized self‑collection kits.