I’m confused as the example I have shows Longevita will not do the procedure over 6%.
That said, official government health bodies ( US, UK and Australia ) citing scientific studies or formal declarations do not communicate any significant risks with hair transplants. I found nothing specific relating to this blood test and the range.
Here’s another example:
Incidence of Complaints and Complications
The author has recorded the incidence of complication and complaints out of 2896 patients operated during June 11, 2009, to November 30, 2020. There were no significant or life-threatening complications
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8719980/
Where do you get the 7% maximum from?