Both tests determine biological age and associated risks.
PhenoAge is calculated using levels of 9 clinical biomarkers circulating in blood, which were found to strongly correlate with onset of age-related diseases and mortality.
GrimAge Test is an epigenetic test and predicts your biological age based on DNA methylation, basically changes in your DNA over time. GrimAge is the "gold standard" in longevity research offers and offers personalized aging drivers, risk factors and tailored recommendations for longevity.
PhenoAge Test involves a blood (plasma) lab test and takes just a few days to get your results, while a GrimAge involves an at-home blood collection kit, which you ship back to our lab for processing, DNA extracting and sequencing, and report processing. GrimAge takes a few weeks to complete and get your report.