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Peter Thomas Roth

Potent-C Power Serum

1.00 fl. oz. for $ 95.00
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We only have one issue with Potent-C Power Serum, and that's the misguided claim that its form of vitamin C is fifty times more powerful than "traditional vitamin C". Comparative scientific research hasn't shown that to be true; in fact, research has shown that ALL forms of vitamin C can benefit skin, depending on the formula, strength, and supporting ingredients. Otherwise, this is an outstanding option for all skin types (and is preferred to the popular vitamin C serum from Kiehl's).

In terms of strength, Potent-C Power Serum delivers 20% vitamin C in the form of tetrahexyldecyl ascorbate. This form of vitamin C is fat soluble, which is why it's believed to have a greater affinity for skin. In contrast, pure vitamin C (ascorbic acid) is water soluble. As stated, both are effective on skin, although fat soluble forms of vitamin C are inherently more stable and easier to use in cosmetic formulas.

Along with the high amount of vitamin C, you're also getting potent amounts of antioxidants ferulic acid and vitamin E (tocopherol). Both are known to re-energize vitamin C when it begins to wear down, so are nice to see in this serum—plus each delivers its own antioxidant benefits. This serum also contains other antioxidants which have soothing properties, making for a balanced mix.

This fragrance-free serum's bioactive ingredients can make a significant difference in uneven skin tone, discolorations, wrinkles, and loss of firmness. Roth describes the texture as rich and moisturizing, but it's definitely on the lighter side, hydrating, but not to the point where if you have dry skin you can skip moisturizer.

Last, this is packaged in an opaque pump bottle to ensure the stability of the anti-aging ingredients, and skin gets a dusting of the mineral pigment mica for a soft glow.

Pros:
  • Very good mix of potent vitamin C + other antioxidants.
  • Lightweight, hydrating serum texture works for all skin types.
  • Can dramatically improve uneven skin tone.
  • Likely to noticeably reduce fine lines, wrinkles, and loss of firmness.
  • Packaged to keep light- and air-sensitive ingredients stable during use.
  • Mica adds a soft glow.
  • Fragrance free.
Cons:
  • None.
Jar Packaging: No
Tested on animals: Yes
Potent-C Power Serum unleashes the strength of THD ascorbate, an ultra-stable scientific breakthrough ingredient 50 X more powerful than traditional Vitamin C. Packed with a jaw-dropping concentration of 20% Vitamin C, the serums efficacy is amplified by the addition of two ultra-powerful antioxidants (3% Vitamin E and 2% Ferulic Acid), delivering a complete and advanced anti-aging, firming and brightening treatment. This rich moisturizing serum is a must to help improve the look of fine lines, wrinkles, firmness, uneven skin tone, texture and brightness. Fragrance-free and non-irritating.
Water, Tetrahexyldecyl Ascorbate, Butylene Glycol, C9-12 Alkane, Caprylyl Methicone, Tocopheryl Acetate, C10-18 Triglycerides, Polyglyceryl-6 Distearate, Ferulic Acid, Squalane, Hydrogenated Lecithin, Propanediol, Sodium Hyaluronate, Zingiber Officinale (Ginger) Root Extract, Curcuma Longa (Turmeric) Root Extract, Panax Ginseng Root Extract, Jojoba Esters, Leuconostoc/Radish Root Ferment Filtrate, Coco-Caprylate/Caprate, Glycerin, Cetyl Alcohol, Polyglyceryl-3 Beeswax, Xanthan Gum, Disodium EDTA, Mica, Ethylhexylglycerin, Potassium Sorbate, Sodium Benzoate, Phenoxyethanol.

Peter Thomas Roth At-A-Glance

Peter Thomas Roth is a large but straightforward line with mostly uncomplicated formulations that, for the most part, are quite good and state-of-the-art. Unlike many product lines, most of the acne, AHA, BHA, sunscreen, and moisturizing products contain what they should to be effective and helpful for skin.

Even more impressive are the well-formulated cleansers, sunscreens, AHA products, and skin lighteners. The moisturizers have improved somewhat, and most are now packaged so that the light- and air-sensitive ingredients remain stable. In fact, Roth's packaging deserves special mention because it is exceptionally utilitarian.

After all that glowing praise, what you should be aware of are the instances of products containing potential irritants (noted in their respective reviews) as well as the products in jar packaging that contain ingredients which are sensitive to air and light.

For more information about Peter Thomas Roth, call (800) PTR-SKIN or visit www.peterthomasroth.com.

About the Experts

The Beautypedia team consists of skin care and makeup experts personally trained by the original Cosmetics Cop and best-selling beauty author, Paula Begoun. We’re fascinated by skin care and makeup products and thrilled when they meet or exceed our expectations, but we’re also disappointed when they fail to perform as claimed, are wildly overpriced, or contain ingredients scientific research has proven can hurt skin.

Our mission has always been to help you find the best products for your skin, no matter your budget or preferences. Beautypedia’s thorough and insightful reviews cut through the hype and provide reliable recommendations for all ages, skin types, and skin tones.