MaasaLong does not have any significant side effects because it is made from 100% natural ingredients. There are a few feedbacks on mild and temporary effects such as stomach discomfort and mild headaches. These mild side effects could result from some of the ingredients, known to have some side effects if used singularly or with no unique formulation with other products. We have singled out two MaasaLong ingredients that usually show some side effects when used in their natural form. They are Muira Pauma and Damiana.