Unopened, well-formulated cosmetics can remain stable for a couple of years at room temperature, says Ni'Kita Wilson, a cosmetic chemist at Cosmetech Laboratories in Fairfield, NJ. But the clock starts once you bring a product home and open it.
How long does it take sperm to reach the egg? I would say at least a couple of hours, but it could take up to three days. Depending you your body and where the egg is in the cycle. The sperm that will be able to fertilize the egg will leave the cervix, at the most, 30 minutes. It does not take 3 days for the sperm to get to the fallopian tubes to ovulation.
The Journey of the Sperm: Meanwhile, millions of sperm are released when the male ejaculates into the woman. At most, perhaps several hundred of these sperm actually reach the egg within 30 minutes or so after ejaculation. The Sperm Reaches the Egg: Once a sperm reaches the egg, it