Advice for Proper Test E Protocol?

[johann77]

For whatever its worth to explain this again.

TRT Facts - Beyond Bro-Science

Its all about the availability of a T reference standard (calibrant) that CDC released in their effeorts to harmonize T measurements https://www.cdc.gov/labstandards/hs_standardization.html The previous ref range that eg LabCorp used was 348 - 1197 ng/dl. Thats based on an LC-MS method using the data from the Framingham study (Bhasin et al, 2011). The new reference range is 264 - 916 ng/dl. And thats based on the study from Travis et al., 2017 which used data from 1185 healthy nonobese young …