Be sure to open your FREE Xytex Account to save your searches and sign up for alerts when any new donors matching your search Patriach, Super Sperm. Working with The Sperm Bank I can't imagine any of the other banks The Sperm Bank of California does not dilute their sperm with fillers like many other banks. If you're looking for information on donor insemination, sperm banks, egg donors, male infertility, Find a Sperm Bank. Find Your Perfect Donor. Purchase Vials.