Isn't that for their NR supplement? Unfortunately, there hasn't been a reasonably priced test since Osiris Green. OG's results paralleled the results I got from myDNAge at 25% the cost.
The test is not a measurement of NAD. It´s a saliva test measuring DNA-methylation.
Feature article:
"Elysium’s Index calculates your biological age by looking at DNA methylation (DNAm), which is one of the ways genes are turned on or off. Methylation occurs when methyl groups—clusters of hydrogen atoms surrounding a carbon atom—attach to the DNA and prevent their expression. Some patterns of methylation are inherited and occur naturally with age, but others are triggered by environment and lifestyle factors, like smoking, stress, exercise, and exposure to chemicals. DNAm isn’t the only way genes may be modified, but it is the most common and has become an important player in the broader field of epigenetics, the science of gene expression. Epigenetic researchers have found that DNAm profiles correspond remarkably well with age-related biomarkers. So a researcher looking at a blind DNAm profile sample could conclude that it represents someone who is 50 years old—although the actual subject might be 40 or 60."
https://www.outsideo...lth-aging-index