PreSeed Lubricant is the leading sperm-safe and fertility friendly lubricant to help you conceive. Created by a female doctor to help couples get pregnant, Pre Seed Personal Lubricant is completely safe for sperm and improves sperm mobility and velocity – helping them get to the egg better. Clinical research has proven that Pre-Seed is fertility friendly and will not harm sperm. Glycerin-free and pH balanced, Pre-Seed mimics your vaginal fluids, making it less irritating than other brands and it also offers a natural feeling. If you are not pregnant within 6 months of using Pre-Seed, consult your physician.