Have the capsules just under 3 weeks, as recommended repeatedly dropped on the day (2-3 pcs.). However, without a change to perceive. The pump is the same and more reps I can not get out so well. The first few days I have, after ingestion, felt something turned up - but selfsame effect I get out even with a small cup of coffee.
With 5g of creatine in the morning and a pre-workout shake one is better off than with these capsules.
(Have given this product a 3-star rating, because I might not get what I expected (temporary strength gains, better pump), however, a slightly impassioned effect has occurred.)