I just got three bottles of this, my brother tried it for the first time today. He used 20mcg and said he could already tell a huge difference (in body heat and energy) but it took about 45 minutes for the heat to hit him. I just talked to him and he said it made him pretty jittery and he didn't like it to much cause he needed to go to sleep soon so he smoked some pot and it calmed him down. But apparently its a good product. Mine is a clear liquid and the label is white and says OralTerol 200mcg/mL 30mL.