
Peter Thomas Roth Potent-C Power Serum
Best Overall
The fullest ferulic formula in this edit: 20 percent THD ascorbate, backed by vitamin E and ferulic acid at declared levels.
The clearest expression of the architecture in this edit: 20 percent THD ascorbate, vitamin E declared at 3 percent and ferulic acid at 2 percent. Every number is printed, which is rarer than it should be.
Suits
Readers who want the classic vitamin C, vitamin E and ferulic acid architecture at the highest declared levels in this edit, in a stable oil soluble form.
Skip if
You prefer a water light pure L-ascorbic acid serum, or your skin is oily and dislikes richer, more cushioned textures.
- Vitamin C Form
- THD Ascorbate, 20 percent
- Key Supporting Actives
- Vitamin E 3 percent, Ferulic Acid 2 percent, Squalane
- Size
- 30 ml / 1 fl oz
- Format
- Pump serum, fragrance free
- Model
- 15-01-049, as printed on the listing


