Compatibility and Layering of MSM/BioSulphur with Vitamin C

Question

Regarding separate formulas containing MSM or BioSulphur and Vitamin C:

1. If MSM or BioSulphur is in a separate formula from Vitamin C, can they be applied at the same time?
2. Do MSM or BioSulphur affect all forms of Vitamin C, including Ascorbyl Tetraisopalmitate?

MySkinRecipes Expert · Accepted Answer

Compatibility and Stability of Retinal, MSM, BioSulphur, and Vitamin C

Based on the information provided:

Retinal with MSM or BioSulphur: Retinal can be mixed in the same formula with MSM or BioSulphur without stability issues.
MSM/BioSulphur and Vitamin C Stability: Both MSM and BioSulphur affect the stability of Vitamin C. BioSulphur should not be used together with Vitamin C, specifically L-Ascorbic Acid.
MSM Exfoliation Effect: At concentrations of 3-5%, MSM provides a gentle exfoliation effect that results in softer-feeling skin, but it typically does not cause visible peeling. This effect is not considered too strong.
Applying Separate Formulas: If MSM or BioSulphur are in separate formulas from Vitamin C (L-Ascorbic Acid), it is recommended to wait at least 30 minutes between applications.
Effect on Different Vitamin C Forms: MSM and BioSulphur affect all forms of Vitamin C, including Ascorbyl Tetraisopalmitate.