Test Yolk Buffer Kit

MACD allows your donor to ship sperm (semen) with a non-toxic preservative on a cold pack so it will remain viable for insemination.

The preservative keeps sperm viable for up to 96 hours in a refrigerator and has been used for decades by fertility clinics.  Your donor sends you a semen sample via overnight delivery, and once it arrives at your home you can easily do a vaginal self-insemination.  See Instructions/FAQ page for more about what’s in the preservative, including egg yolk.

MACD does not prevent the transmission of disease.  Make sure your donor is tested and is a person who you trust.  Please note in our Terms and Conditions that we do not endorse nor support working with a donor whom you do not know.  By making a purchase on this site you are testifying that your donor is known to you (a “directed donor”), and not someone you’ve met on an app or on the internet, etc.  This process can be trying, but please prioritize keeping yourself and your future child safe at all times.  Please see our Safety page for suggestions and, please, consult your licensed medical professional (midwife, nurse practitioner, or doctor).

We ask for at least ten days from when you place your order for us to send out your kit.  We can sometimes make it happen faster, but cannot guarantee this!

Note that all deliveries are sent overnight to maintain viability of the TYB, and kits arrive Tuesdays – Fridays (and some Saturdays).  We are not an expedited service nor do we do last minute/rush orders: please place your orders at least 10 days in advance.  WE CAN ONLY SHIP WITHIN THE UNITED STATES.  We charge a $30 processing fee for cancellations, please make your orders carefully!  Thank you. See Instructions for Donor and Recipient.Instructions/FAQ