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.
1 Sperm can last 3 to 5 days inside a woman. 2  Every woman ovulates differently. 3  People will tell you the average woman ovulate 14 days from the day you start your period. 4  It takes about two hours to make the entire journey to the egg; however, some sperm are Olympic swimmers and can reach the egg in a half an hour. Sounds pretty slow until you realize Sperm is about 1/600 inch long. 2  If you scale that up to human size that's about 4-5 miles / hour -- slow jogging speed. 3  The penetration of the penis and location of the egg in the fallopian tubes is only two factors that will affect time.