It most likely is the Ashwagandha. M-Test contains KSM-66 which is one of the best herbs on the market for increasing both free and total testosterone levels but it does also help people relax. Most people find that this helps them be more relaxed and have a more positive mood and feel better, but for some people, any type of ashwagandha may make them sleepy.
For me, I've been on M-Test for a long time as part of my daily use supplement regimen and it really helps me be a much more calm, relaxed, and positive person. It doesn't make me sleepy or tired if I space my dose out morning and night, but if I were to take all the caps once a day it would make me tired.
For a non-ashwagandha natural test boosting option, I would definitely suggest Optimize-T. It has a lot of great feedback and is a very comprehensive formula. Here's a link to the Optimize-T master thread so you can read some feedback and experiences on it:
Natural Testosterone Booster & Libido Enhancer Optimize Free & Total Testosterone Levels Clinically Researched Key Ingredients 8 High End Active Ingredients …. Backed by Clinically Researched Key Ingredients 500 mg. FuroSap® 500 Mg. Spilanthes (SA3X™) 300 mg. Bionutricia® Tongkat Ali 250 mg...
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