Meet the Experts
Keep reading for the complete guide to the popular antioxidant ingredient.
Herrmann recommends asking your board-certified dermatologist which brand may be best suited for your skin throw in.
How often can you use it:Herrmann recommends using vitamin C daily or every other day.
Liz DeSousa for Byrdie
What Is Vitamin C?
“It is important to note that vitamin C has both active and inactive forms,” explains Guanche.
The first form of vitamin C worth mentioning is the pure form, L-ascorbic acid.
Renée Rouleau
Herrmann adds that the variants mostly differ in their hydrophilicity (i.e.
their ability to easily dissolve in water) and pH.
Then, she waited for three hours.
Jenna Ignieri / Design by Cristina Cianci
However, in high concentrations, it can be irritating, especially if mixed with other acids.
Formulation Considerations
As great as it is, vitamin C isn’t without obstacles.
For this reason, Herrmann advises against the DIY trend.
2012;2012:135206. doi:10.1155/2012/135206
Oregon State University Linus Pauling Institute.Vitamin C and skin health.
Updated September, 2011.
2017;10(7):14-17.
