BULK-UP is 4-Dhea, a-Dhea, and b-Dhea. It will pack on mass but the DHT conversion will minimize some of the "wet" gains. MAX-BULK is our real bulker that will pack on more mass. Both are great choices.
Alpha Bulk appears to be 4-Dhea. I think it's ForeRunner Labs bulker. So I'd expect more "wet" gains here too.