Peter Thomas Roth Potent-C™ Power Serum
Peter Thomas Roth Potent-C™ Power Serum is a high-performance brightening treatment designed to tackle signs of aging and uneven skin tone. The star of the formula is a 20% concentration of Tetrahexyldecyl Ascorbate, an ultra-stable Vitamin C derivative that is known for being more potent and less irritating than traditional L-ascorbic acid. This serum is further enriched with 3% Vitamin E and 2% Ferulic Acid, creating a powerful antioxidant complex that protects the skin against environmental stressors. In terms of texture, the serum features a sophisticated blend of C9-12 Alkane and Caprylyl Methicone, which provides a silky, smooth application that absorbs quickly without a greasy finish. It feels lightweight on the skin, making it an excellent layer under moisturizer or sunscreen. Whether you are looking to firm the skin, reduce the appearance of fine lines, or achieve a more radiant complexion, this serum offers a clinical-strength solution with a luxurious feel.
Our Analysis
Our analysis of the Peter Thomas Roth Potent-C™ Power Serum reveals a low comedogenic risk level, which is encouraging for those concerned about pore congestion. The formula is mostly comprised of skin-replenishing emollients and stable antioxidants. The only flagged ingredient is Cetyl Alcohol, which holds a comedogenic rating of 2/5. As a fatty alcohol, Cetyl Alcohol is generally used to give products a creamy consistency and is typically well-tolerated. However, individuals with exceptionally reactive or acne-prone skin should be aware that it can occasionally trigger minor congestion in very specific cases. Overall, the formula remains a safe choice for most.
Skin Type Recommendations
This serum is ideal for dry, normal, and combination skin types looking for anti-aging benefits. While the comedogenic risk is low, those with extremely oily or highly acne-prone skin should monitor their reaction to the Cetyl Alcohol. It is a fantastic option for sensitive skin needing a non-irritating Vitamin C.
Flagged Ingredients
A fatty alcohol (emollient) that is generally safe, but can be problematic for very sensitive individuals.
Want Deeper Analysis?
Run our MACR (Multi-Axis Comedogenic Risk) analysis to get a comprehensive 5-axis risk assessment. This AI-powered analysis evaluates ingredients for Plugging Risk, Barrier Damage, Fungal Acne Risk, Oxidation Risk, and real-world User Reports — giving you personalized scores for your skin type.
