Peter Thomas Roth Potent-C Brightening Vitamin C Moisturizer — 10% THD Ascorbate, lightweight gel-cream for hydration & even tone

Potent-C Brightening Vitamin C Moisturizer is a fast-absorbing gel-cream that uses 10% THD Ascorbate plus antioxidant boosters to visibly brighten skin and hydrate for a smoother, more even look.

This lightweight moisturizer pairs a stabilized, high-potency Vitamin C derivative with supporting antioxidants and hydrating actives to address the appearance of dullness, uneven tone, fine lines, and dehydrated texture. The formula combines clinically informed ingredients—THD Ascorbate for brightening, Vitamin E and Ferulic Acid for antioxidant support, and a blend of moisturizers and skin-fortifying micronutrients—to create an everyday cream that layers easily under sunscreen or makeup.

How does the THD Ascorbate in this moisturizer brighten my complexion?

THD Ascorbate is an advanced, oil-soluble form of Vitamin C that is engineered for stability and skin delivery. At a 10% concentration, it acts as the primary brightening agent in the formula while remaining gentle enough for daily use for many skin types.

• Contains 10% THD Ascorbate, a stable Vitamin C derivative designed for effective skin penetration.
• Formulated to reduce the look of uneven tone and restore surface radiance.
• Compatible with daytime routines when followed by sunscreen.

What antioxidant support does the product include and why does it matter?

Antioxidants help protect the look of skin from environmental stressors and support the brightening effect. This moisturizer includes Vitamin E and Ferulic Acid, which work alongside the vitamin C derivative, plus a Superfood Complex to reinforce overall antioxidant capacity.

• 3% Vitamin E and Ferulic Acid boost antioxidant performance and stabilize Vitamin C activity.
• Superfood Complex uses kale sprouts and olives for plant-derived antioxidant benefits.
• Minerals and vitamins (Calcium, Zinc, Vitamins A, C and B3) help support visible skin resilience.

How does this gel-cream hydrate and plump skin without feeling heavy?

The texture is a lightweight antioxidant gel-cream that layers moisture into skin while avoiding greasiness. Multiple humectants and barrier-supporting ingredients deliver hydration, plumping the look of fine lines and improving surface texture.

• Hyaluronic Acid attracts and holds moisture for immediate plumping effect.
• Ceramide NP and Trimoist KMF support the skin barrier and help lock in hydration up to 24 hours.
• Hydrolyzed Collagen and Elastin visibly support a smoother, more supple appearance.

How should I use this moisturizer in my daily routine?

Apply morning and/or evening after cleansing and serum steps, gently massaging a small amount into face and neck. In daytime use, follow with a broad-spectrum sunscreen to protect brightening results and shield skin from further environmental effects.

• Use after serums—especially water-based serums—to seal in active ingredients.
• For daytime, layer with SPF to protect against photo-induced discoloration.
• Start with every-other-day use if you are new to concentrated Vitamin C, then increase as tolerated.

Who is this for: This moisturizer suits anyone seeking a brighter, more even-looking complexion without heavy creams—particularly those concerned with dullness, uneven tone, early signs of aging, or dehydration. It is formulated to be used by people who want a science-backed Vitamin C product paired with antioxidant and hydrating support; if you have very sensitive or reactive skin, patch testing is recommended before full-face application.

Ingredients

Water/Aqua/Eau, Tetrahexyldecyl Ascorbate, Propanediol, C9-12 Alkane, Glycerin, Tocopheryl Acetate, Behenyl Alcohol, Palmitic Acid, Cetyl Palmitate, Polyglyceryl-2 Stearate, Stearic Acid, Stearyl Alcohol, Oleic Acid, Soy Acid, Ferulic Acid, Brassica Oleracea Acephala Leaf Extract, Olea Europaea (Olive) Fruit Extract, Hydrolyzed Collagen, Elastin, Zingiber Officinale (Ginger) Root Extract, Lactic Acid, Ceramide NP, Sodium Hyaluronate, Butyrospermum Parkii (Shea) Butter, Wheat Amino Acids, Glycine Soja (Soybean) Sterols, Saccharomyces Ferment, Jojoba Esters, Olus (Vegetable) Oil, Glyceryl Stearate, Gluconolactone, Calcium Gluconate, Sodium Benzoate, Sodium PCA, Sodium Stearoyl Lactylate, Myristic Acid, Sodium Hydroxide, Sodium Lactate, Lauroyl Lysine, Arachidic Acid, Lauric Acid, Potassium Sorbate, Coco-Caprylate/Caprate, Sodium Carboxymethyl Beta-Glucan, Histidine HCL, Carnosine, Polyglyceryl-6 Distearate, Arachidyl Alcohol, Cetyl Alcohol, Lignoceryl Alcohol, Xanthan Gum, Carbomer, Polyglyceryl-3 Beeswax, Ethylhexylglycerin, Disodium EDTA, Mica, Phenoxyethanol, FD&C Yellow No. 6/CI 15985, Fd&C Yellow No. 5/CI 19140.