Hoping someone can give me some scientific advice. I don't have a formula yet so this is all hypothetical, but when using MSM (methylsulfonylmethane) in a cream at around 10%, is there a need for a buffer? I plan on using a pre-neutralized polymer to thicken with cetearyl alcohol, and phenoxyethanol/ethylhexylglycerin as a preservative. I'm not familiar with MSM so I don't know if a chelator or buffer would interfere OR be required. Different websites give me different use instructions.
Thanks so much!