I think sustain alpha is a good product and I've used it a lot this year. However with Alpha Gel I personally am noticing
a. 2 pumps twice a day vs 4 pumps once a day is nice
b. is a little thicker, so it spreads into the skin far easier, this coupled with item (a.) means less skin real estate needed, and easier to change application locations
c. much more mild on the skin, no skin irritation. maybe the formula, maybe a result of a and b.
d. not sure if I'm noticing the euphoria that mr boom does, but definitely sleeping better, strong libido and strong physical reaction.
really seems like a solid product, especially to notice it at all after running dermacrine and ultra hard because at one point I just stopped noticing more natural substances for a while when under the influence of dhea and epiandro.