The currency value is determined on the economic status of the country issuing the currency. For example: The US Dollar is one of the highest currency's in the world, as well as the EURO. The United States as well as Europe have strong economys.
Dimethicone, which is a silicone oil, is also known as polydimethylsiloxane (PDMS) and is used in a number of health and beauty products.
That's not an easy question to answer because there's not a lot of research on the long-term effects of the dietary supplement called methylsulfonylmethane (MSM). MSM is formed using dimethylsulfoxide (DMSO), an organic form of sulfur that's also used as a dietary supplement. Animals observed for 90 days on a daily dose of MSM five to seven times greater than what's typically used in people had no serious problems. Stomach upset, diarrhea and headache have been reported in human trials of MSM lasting up to 12 weeks. However, people taking a placebo also reported similar symptoms.