I didn't see that guarantee posted on their page. Another reported symptom of the last night's pine pollen and mucuna intake is drier skin. Skin usually is somewhat oily. I wish I had the response some of you others have had with this stuff. I will wait until things normalize a bit and then try the 3 tablespoon experiment on a later night. I will just stick to the ones I know work for now for the PCT. I need to regain ground that was lost.