When choosing a sperm-friendly lubricant for your fertility journey, it's important to consider the impact of the lubricant on sperm motility and viability. Many commercial lubricants can have a negative effect on sperm, so it's crucial to opt for products specifically designed to support fertility.

One example of a sperm-friendly lubricant is Pre-Seed. This lubricant is formulated to mimic the body's natural fluids and has been shown in studies to be less harmful to sperm compared to other lubricants.

Another option is Conceive Plus, which is also designed to be fertility-friendly and is pH balanced to match fertile cervical mucus, creating a sperm-friendly environment.

When choosing a lubricant, it's essential to look for key features such as isotonicity, pH balance, and compatibility with sperm. Reading product labels and consulting with a healthcare professional can help in making an informed decision.

References:

• "Vaginal lubricants for the infertile couple: effect on sperm activity." Human Reproduction, Volume 13, Issue 12, December 1998, Pages 3351–3356.
• "A prospective, randomized, cross-over trial to evaluate the effect of a lubricant used during intercourse on the fecundity of couples with unexplained subfertility." Human Reproduction, Volume 19, Issue 10, October 2004, Pages 2293–2298.