Product information for Zechsal OptiMSM Kristalpoeder: Application of Zechsal OptiMSM Kristalpoeder: MSM (methylsulfonlymethane) is a natural source of organic sulfur. Sulphur has been used therapeutically for centuries for various complaints and conditions. OptiMSM is the purest form of MSM.Ingredients of Zechsal OptiMSM Kristalpoeder: Methylsulfonylmethane.Usage of Zechsal OptiMSM Kristalpoeder: For optimal results, add MSM Crystal Powder OptiMSM to a bath or foot bath with Zechsal bath crystals. - For a foot bath, use 10 grams (in approx. 4 litres of warm water)- For a bath, use approx. 50 grams of MSM crystal powder. Oral use is also possible: mix 0.5 to 4 grams of MSM with water. Tip: Build up usage slowly to the desired level! This products belongs to the category: MSM Methylsulfonylmethane