Peter Thomas Roth Potent-C Targeted Spot Brightener 15ml is a high-performance, clinically-developed dark-spot treatment from the celebrated American clinical skincare brand Peter Thomas Roth. The advanced formula combines 10% Tetrahexyldecyl Ascorbate (a stable vitamin C derivative), 3% vitamin E and 2% ferulic acid with brightening algae and angelica extracts — to visibly reduce the appearance of dark spots and uneven tone over consistent use.
About Peter Thomas Roth
Peter Thomas Roth is an American clinical skincare brand founded in 1993 by Peter Thomas Roth — a third-generation skincare specialist. The brand is celebrated worldwide for its results-driven, clinically-developed formulations. The Potent-C range is the brand's flagship vitamin C-led brightening line.
Key actives
- 10% Tetrahexyldecyl Ascorbate (Stable Vitamin C): a lipophilic, stable form of vitamin C — brightens and supports a more even-toned complexion.
- 3% Vitamin E (Tocopheryl Acetate): works synergistically with vitamin C — antioxidant protection.
- 2% Ferulic Acid: stabilises and boosts vitamin C — a celebrated antioxidant trio.
- Gwennis (Algae) Extract: a brightening botanical active.
- Angelys (Angelica) Root Extract: an additional brightening botanical.
- Aloe Vera and Allantoin: soothing, hydrating actives that calm the skin.
Key benefits
- Visibly reduces the appearance of dark spots — sun spots, age spots, post-acne marks.
- Brightens and evens skin tone over consistent use.
- Antioxidant protection from the celebrated vitamin C-E-ferulic acid trio.
- Targeted application — apply directly onto problem areas.
- Soothing aloe and allantoin keep the skin comfortable during treatment.
Who it's for
Peter Thomas Roth Potent-C Targeted Spot Brightener is for those concerned about specific dark spots, uneven tone or pigmentation — particularly post-acne marks, sun spots, age spots and melasma-style hyperpigmentation. The targeted format makes it especially well-suited as a "spot treatment" rather than an all-over product. A natural pair with the wider Potent-C routine.
How to use
- Morning and evening, after cleansing and toning the face.
- Dispense a small amount onto the fingertips.
- Apply directly onto specific dark spots or areas of pigmentation.
- Press gently into the skin.
- Allow to absorb fully before applying moisturiser.
- Always wear a broad-spectrum SPF in the daytime — UV exposure is the leading cause of pigmentation.
Specifications
- Size: 15ml
- Format: Targeted dark-spot brightening serum
- Range: Potent-C
- Targets: Dark spots, pigmentation, uneven tone
- Brand: Peter Thomas Roth
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