DHEA is a natural steroid that has been studied for its use in treating several mental health conditions, including mood disorder and PTSD. DHEA (5-Dehydroepiandrosterone) is a natural steroid produced in the adrenal glands, the gonads and the brain.It is the most abundant circulating steroid in humans. A form of DHEA, 7-keto DHEA (3-acetyl-7-oxodehydroepiandosterone), is claimed to have fewer side effects.HEA. DHEA is a natural steroid that has been studied for its use in treating several mental health conditions, including mood disorder and PTSD. DHEA (5-Dehydroepiandrosterone) is a natural steroid produced in the adrenal glands, the gonads and the brain. It is the most abundant circulating steroid in humans.
Silver Corrosion. Silver (Chemical symbol Ag) is a brilliant gray white metal that is quite soft and malleable. It is quite resistant to corrosion and does not oxidize easily, although it readily forms a surface tarnish of silver sulfide. A modern and comprehensive document on the subject is the second edition of the classic CORROSION BASICS textbook.
Trending Now. Answers. Best Answer: Sterling silver is 92.5% pure silver the other 7.5% is an alloy including copper. Copper can oxidise when in contact with your skin or with the air. Therefore the alloy component can discolour and/or tarnish, turning your sterling silver brownish (tarnish) or grey-black (oxidised). You can clean it with a silver cleaning cloth from a jeweler's or even from the supermarket. (Do not use chemical cleaners if the silver jewelry has gemstones or pearls in it.)