no difference after three weeks of consistent use and product will not dispense through pump [SEP] another updatei finished the bottle which gave me about weeks of use if it made any difference in my skin it is at a microscopic level i am buying another bottle mainly because there is got to be some truth to all the star reviews but if after another month or so of use i still do not see improvement in my skin i am asking a dermatologist for a rx for retin aoriginal review i have been using this product for three weeks and i have yet to see any improvement in my skin i am amazed and not a little skeptical about some people seeing results in two weeks i also wonder how many star reviews were written by people who were given the product to tryi am very methodical about using new products on my skin i use a magnifying mirror establish a baseline area of my skin to observe over time and take close up selfies of my skin to compare with photos taken a few weeks later no difference so far but i will continue to use this product until it is gonei do like that this retinol does not irritate my skin which is highly unusual so unusual it makes me wonder if it indeed contains any retinolin conclusion and not a critique of the product itself but the product will not dispense through the pump it is too thick i am having to pull the cap off and shake the serum on to my fingertips i wish it came with a dropper instead i changed out out the pump with a dropper from another bottle of serum i am surprised i have not read about this problem in other reviews another reason i am leery of all the glowing commentsi will update with my progress or lack thereof at a later date