Frequently Asked Questions
How is biological age measured, and how accurate is epigenetic testing?
BAR Labs uses epigenetic biological age testing, which analyzes DNA methylation from a blood sample. These tests are highly reproducible for tracking change over time, which is their real strength. They are research and wellness tools rather than diagnostic medical tests, and no epigenetic clock diagnoses disease. The value is in the trend line across repeat tests, not one isolated score.
How often do I need to retest my biological age?
Most patients retest every 8 to 12 weeks at the start, then quarterly once a protocol is stable. Testing too frequently produces noise rather than signal, because methylation shifts take time to appear. BAR Core membership includes quarterly testing. BAR Black includes testing every 6 to 8 weeks when clinically appropriate.
