After the sample has been washed, analyzed, and separated into multiple vials, cryoprotectant is added. Then, the sperm is cryopreserved in a “slow freeze” using liquid nitrogen.
We are industry leaders in sperm cryopreservation, and take multiple steps to safeguard the quality of your sperm.
First: we conduct a post-thaw analysis after the sperm has been frozen, to ensure the sperm survive freezing and give you a more accurate estimate of your total motile sperm count when using your sperm later on. Legacy is the only at-home sperm freezing option that provides a post-thaw analysis.
Legacy is also the only sperm freezing option that offers multi-site storage. That means we divide your vials into several batches, and store each of those batches in different locations. This mitigates even the smallest risk, and ensures your sperm will be safe and ready to use whenever you need.
Sperm frozen with Legacy is transported using a cryo-shipper that has had a 100% success rate since the 1980s. Your sperm is stored long-term in highly secured, dedicated cryogenic storage facilities that are monitored around the clock.
Learn more about sperm freezing.