"i&#039;ve used this for 2 years and have had no problems whatsoever. i previously had an arm implant and experienced spotting and weight gain that wouldn&#039;t stop. after taking quasense i&#039;ve lost weight, no spotting, light &amp; short periods. i use retin a for acne so my skin has been unaffected. i&#039;m not sure about water retention because i believe that has a lot to do with diet and i&#039;m athletic so i stay hydrated on a daily basis. i experienced no nausea, headaches, psychological side effects.  and most importantly, no pregnancy."