What do you need to take after taking test booster to get your testosterone back to normal?
Assuming you weren't on any PH/AAS and just on a natty test booster (i.e. Bioforge, Activate Extreme, etc.) your test should return to normal on it's own. Make sure your diet is in check and you have plenty of healthy lipids (fats). Healthy lipid levels are integral to the physiological transformation of cholesterol to testosterone in the testes.