for me it has been about 2 and a half weeks.I am stacking it with 400mgs of eq.I am taking 50mgs of the var-taking 2 day spilt up.The first week i noticed nothing but on the second i added 20grams a day of creatine and within days started to feel super pumped and a slow but very noticable increase in strength.I am 6"4 and only 227 so i am year round lean and vascular but have noticed more veins starting to show especially in and around my delts.i plan on going 7 weeks of anavar and 10 weeks of the eq.if I had more of the var I would run longer but it gets pricey.