From literature I've seen plotting hourly LH and endogenous testosterone levels over the course of a day, there's quite a distribution in terms of what's classified as "normal". If I had to do it over, may start a career studying the frequency response of the HPG axis. Fascinating guys, thank you.But is there something special about doing it three times with the nasal gel? Maybe in the the Natesto product development phase they experimented with different frequencies? Are there any references for the half-life of testosterone in oil? What if it is hours instead of minutes? If so then a single morning injection would somewhat approximate a natural rhythm. Natural men do experience "hypogonadal" testosterone levels at their troughs.