Pre~Seed has been clinically tested for irritation in people and rabbits. These tests showed no evidence of reactivity.
Additionally, each lot of Pre~Seed is carefully screened to assure a sperm-friendly environment before it is released for sale. To our knowledge, we are the only vaginal moisturizer or lubricant manufacturer that performs "Lot Release" testing to ensure that the product will relieve vaginal dryness while providing an optimal environment for sperm.
Each lot of Pre Seed is tested to ensure:
1) pH between 7.2 and 7.6
2) Osmolarity between 300 and 380 mOsmo/kg
3) No harm to Mouse Embryos: assures that greater than 85% of one cell mouse embryos develop to the blastocyst stage when cultured with Pre~Seed. This analysis is the FDA test for all media solutions used in assisted reproduction such IUI or IVF.
4) Sperm-friendliness: freshly ejaculated human sperm are cultured with Pre~Seed in media to ensure that the percentage of swimming sperm, and their swimming speed is not negatively effected by the Pre~Seed. Pre-Seed Information home page