Potent-C™ Vitamin C Power Serum
Peter Thomas Roth Potent-C™ Vitamin C Power Serum scores 6.3/9.8 overall. It ranks highest in low irritation risk (9.5) and formulation safety (9.0).
✶ Hero ingredients
Works on your skin
Lightweight humectant and solvent
Softens and smooths
Score breakdown
Scores last verified: July 2026
What makes Peter Thomas Roth Potent-C™ Vitamin C Power Serum stand out
Peter Thomas Roth Potent-C™ Vitamin C Power Serum is a decent serum with an overall score of 6.3/9.8. Positioned in the luxury bracket, it takes a straightforward approach to skincare. The formula leads with Tetrahexyldecyl Ascorbate, Butylene Glycol, C9-12 Alkane — ingredients that actively target skin concerns.
It performs well on hydration (7.5) and low irritation risk (9.5). On the flip side, active ingredient concentration is on the lighter side.
Is this right for you?
Great for
- ✓Dry or dehydrated skin — strong moisture-binding profile
- ✓Sensitive skin — low irritation risk with a gentle formulation
- ✓Safety-conscious shoppers — clean formulation with minimal flags
May not suit
- ⚠Those seeking potent actives — this leans more maintenance than treatment
Key ingredients
- ✶Tetrahexyldecyl Ascorbate
Works on your skin — #2 in the INCI list
- ✶Butylene Glycol
Draws in moisture — #3 in the INCI list
- ✶C9-12 Alkane
Softens and smooths — #4 in the INCI list
- ✶Caprylyl Methicone
Softens and smooths — #5 in the INCI list
- ✶Tocopheryl Acetate
Works on your skin — #6 in the INCI list
Full ingredient list
28 ingredients — listed in INCI order (highest concentration first)
Compare with similar products
- Lancôme Renergie C.R.X. Triple Serum Retinol9.7
- INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid9.7
- innisfree Vitamin C Brightening Serum-Infused Mask for Dark Spots9.7
- Skinfix barrier+ Triple Lipid Activating Serum With Plumping Peptides and Niacinamide9.6
- innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars9.6
Ingredient breakdown
- Softens and smooths7
- Works on your skin5
- Draws in moisture5
- Keeps the product fresh4
- Other ingredient2
- Holds the formula together2
- Formula balancers1
- Locks moisture in1
- Added colour1