Egg Freezing

There is no known biological expiration date — vitrification halts all cellular activity at -196°C. Healthy babies have been born from embryos frozen for over 27 years. The critical factor is egg quality at the time of freezing, not storage duration, so younger eggs frozen for decades will outperform older eggs frozen recently.

The optimal window is between ages 25-35, when egg quality and quantity are high. Freezing after age 38 yields significantly diminished returns due to declining egg quality. While freezing at any age preserves eggs better than retrieving them even later, the cost-benefit balance becomes less favorable after the late 30s.

Frozen embryos have a slightly higher thaw survival rate (95-99%) compared to eggs (90-95%), because embryos are more structurally stable. However, egg freezing preserves reproductive autonomy — you do not need a sperm source at the time of freezing. Embryo freezing requires concurrent IVF but allows preimplantation genetic testing before storage.

Annual storage fees at overseas clinics typically range from $200-$800 per year, significantly less than the $500-$1,500 common in the US. Some clinics offer multi-year storage packages at a discount. Confirm the fee schedule upfront, what happens if you miss a payment, and whether the clinic has a track record of long-term storage (some have been operating for 20+ years).

Yes — specialized biomedical couriers transport reproductive material internationally in temperature-monitored nitrogen dewars. Both the sending and receiving clinics must consent to the transfer. You will need to check import regulations in your destination country, as some require specific documentation or quarantine testing. The process typically takes 2-4 weeks to coordinate and costs $500-$2,000 depending on distance.