In Hindu myth, the exchange of this substance between Mitra and Varuna results in  the waxing and waning of the moon.
It's not salt, but this substance can be thrown at the Aswang, a winged demon from Filipino folklore in order to cause its skin to become irritated. In Zoroastrian legend, the death of Gayomart caused this substance to fall to the ground which after forty years of exposure to sunlight gave rise to two rhubarb plants. In Hindu myth, the exchange of this substance between Mitra and Varuna results in  the waxing and waning of the moon. Enki once ate plants contaminated with this substance causing his mouth and lips to swell up until this substance was taken by Ninhursag resulting in the (*) birth of eight gods. In order to best Set, Horus once dressed a lettuce leaf with this substance and got Set to consume it. In another myth, Pasiphae cursed her husband Minos to produce scorpions and spiders instead of this substance in order to curb his adulterous ways. For 10 points, identify this natural substance which mixed with sea foam to create Aphrodite, presumably after coming from Uranus' severed testicles.
It's not salt, but this substance can be thrown at the Aswang, a winged demon from Filipino folklore in order to cause its skin to become irritated.
semen or sperm [accept any and all hilarious equivalents]