I go against the grain than most on oral cycles.
Healthy young men (n = 10) aged 21–29 years old with a BMI of 18.8–26.2 kg/m2 were recruited in the study. Three
hcg injections (2000 I.U.) were performed at days 0, 2 and 4 between 7 am and 8 am just after urine and serum collection.
The mean level in all subjects of serum
testosterone increased from 14.1 to 16.8 nmol/L 12 h after the first injection and to 21.4 nmol/L after 24 h. At the second injection time the mean value was 27.4 nmol/L and increased to a maximum of 30.7 nmol/L observed 24 h after the second injection. 12 h after the last injection, the mean serum concentration was slightly decreased to 29.5 nmol/L.
Interestingly, the mean testosterone level in serum was significantly decreased twelve days after the last injection dose compared to the basal level (p < 0.001, paired t-test) with 9.8 nmol/L.
The serum LH level decreased along the study due to the negative feedback on the hypothalamo-pituitary axis (HPA) performed by the testosterone up regulation. The average LH basal level of 3.4 mIU/mL remained stable 12 h after the first injection and decreased to 1.7 mIU/mL after 24 h and 1.2 mIU/mL after 48 h. The average LH concentration remained low 24 h after the second injection and 12 h after the last injection with 1.5 mIU/mL and 1.1 mIU/mL, respectively. Twelve days after the last injection, the LH level among volunteers was not significantly different from the basal concentrations measured before the first treatment.
So this is equivalent to taking around 100mg testosterone a week, give or take.
mands