# Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment for dry sensitive skin

**Lovi Fit: High fit for dry sensitive skin.**
Dry Skin Fit: High · Effectiveness: High · Safety: High.

Page: https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/dry-sensitive-skin

The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for the United States.

Brand: [Peter Thomas Roth](https://lovi.care/skincare/brands/peter-thomas-roth)
Category: [Serums and treatments](https://lovi.care/skincare/best/serums)

This fit is calculated for the concerns frequently associated with dry sensitive skin: flakiness, tightness, redness, fine lines, and wrinkles. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

A great choice for dry sensitive skin; a few serums fit it even better.

## Why this fit

- Highly suitable for your dry and sensitive skin, this treatment leverages niacinamide and alpha arbutin to effectively brighten and even your skin tone, while shea butter and glycerin provide essential hydration and barrier support.
- The inclusion of tranexamic acid further aids in reducing discoloration, complementing the primary brightening agents for a more uniform complexion.
- The formulation is safe for your skin, containing no harsh or irritating ingredients.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/oily-skin): Average
- [Dry skin](https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/dry-skin): Superior
- [Combination skin](https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/combination-skin): High
- [Sensitive skin](https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin): High
- [Acne-prone skin](https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/dark-spots): Superior
- [Mature skin](https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/mature-skin): High
- [Dry sensitive skin](https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/dry-sensitive-skin): High (this page)
- [Oily acne-prone skin](https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/oily-acne-prone-skin): High

## Key ingredients

Niacinamide, Tetrahexyldecyl Ascorbate, Tranexamic Acid, Alpha Arbutin, Kojic Acid

## What the research says

- Niacinamide significantly decreased hyperpigmentation and increased skin lightness compared with vehicle alone after 4 weeks of use in women by inhibiting melanosome transfer. ([The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/))
- Encapsulation of alpha arbutin in an optimized ethosomal gel significantly improved skin melanin reduction, moisture content, and elasticity in human volunteers compared to conventional formulations. ([Heliyon, 2023](https://pubmed.ncbi.nlm.nih.gov/37681127/))
- Topical post-laser application of human adipocyte-derived mesenchymal stem cell media combined with niacinamide significantly improved wrinkle index, melanin index, patient satisfaction, and investigator esthetic improvement scores compared to vehicle cream in patients with aging skin. ([Journal of Cosmetic Dermatology, 2021](https://pubmed.ncbi.nlm.nih.gov/33103316/))
- Topical nicotinamide prevented solar-simulated UV-induced immunosuppression in healthy volunteers, and men experienced immunosuppression at solar-simulated UV doses three times lower than those required for women. ([The Journal of Investigative Dermatology, 2008](https://pubmed.ncbi.nlm.nih.gov/17882270/))
- Topical 5% niacinamide applied twice daily for 12 weeks reduced fine lines and wrinkles, hyperpigmented spots, red blotchiness, and skin sallowness, and improved skin elasticity compared to vehicle control in 50 female white subjects with facial photoaging. ([Dermatologic Surgery, 2005](https://pubmed.ncbi.nlm.nih.gov/16029679/))
- Topical application of 5% vitamin C cream significantly improved global clinical scores, increased skin microrelief density, and induced elastic tissue repair in photoaged skin compared to excipient control in healthy female volunteers. ([Experimental Dermatology, 2003](https://pubmed.ncbi.nlm.nih.gov/12823436/))
- Ascorbic acid 2-glucoside gel significantly reduced gingival melanin pigmentation after 4 weeks compared to placebo in 73 subjects with symmetric pigmentation. ([Journal of Periodontology, 2009](https://pubmed.ncbi.nlm.nih.gov/19186973/))
- Topical application of VC-IP cream twice daily for 8 weeks reduces periorbital wrinkles in female subjects compared to a placebo cream. ([Journal of Cosmetic Dermatology, 2022](https://pubmed.ncbi.nlm.nih.gov/34910367/))
- A non-hydroquinone topical formulation (SKNB19) improved hyperpigmentation by 28.5% in patient self-assessment and 27% in independent reviewer assessment compared with 4% hydroquinone in 18 adult subjects, while showing significantly less irritation and better tolerability. ([Journal of Cosmetic Science, 2020](https://pubmed.ncbi.nlm.nih.gov/33022197/))
- Combining a home-based radiofrequency device and arbutin cream reduced mMASI scores by 25.6% and melanin index by 22.8% at 8 weeks compared to baseline in 38 participants. ([Journal of Cosmetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/39918262/))
- Polyvinyl pyrrolidone-K90/Eudragit RL100 dissolving microneedle patches loaded with alpha-arbutin and resveratrol enhanced intradermal delivery by approximately 2.6 times compared to cream and slightly decreased the melanin index in human participants without causing skin irritation. ([Biomaterials Science, 2023](https://pubmed.ncbi.nlm.nih.gov/37183632/))
- A topical formulation containing kojic acid, emblica extract, and glycolic acid demonstrated efficacy parity compared with hydroquinone 4% in multiethnic participants with mild to moderate facial dyschromia. ([Cutis, 2010](https://pubmed.ncbi.nlm.nih.gov/21049734/))
- A nanoemulsion containing 1 mg/mL kojic dipalmitate and 5% rosehip oil demonstrated high incorporation efficiency, suitable physicochemical stability, antioxidant and depigmenting efficacy close to 1 mM ascorbic acid, and no cytotoxicity at concentrations from 0.06% to 1% in vitro. ([Pharmaceutics, 2023](https://pubmed.ncbi.nlm.nih.gov/36839792/))
- Topical application of iron chelators kojic acid and deferiprone significantly accelerated wound healing in rats compared to control groups, with deferiprone showing superior efficacy due to higher antioxidant and iron chelation abilities. ([International Wound Journal, 2013](https://pubmed.ncbi.nlm.nih.gov/22621771/))

## What reviewers say

Users consistently praise this treatment for its ability to visibly fade post-acne marks and brighten the overall complexion, often noting its lightweight and non-sticky texture. While many see rapid results with general hyperpigmentation, some users report it is less effective on stubborn conditions like melasma and note the high price point.

- Liked: Fades dark spots (mostly mentioned)
- Liked: Brightens complexion (often mentioned)
- Liked: Elegant texture (sometimes noted)
- Liked: Gentle formulation (sometimes noted)
- Disliked: High price point (sometimes noted)
- Disliked: Ineffective on melasma (rarely noted)
- Disliked: Potential breakouts (rarely noted)
- Disliked: Slow results (rarely noted)

## How to apply

- Use this PM routine for your evening skincare. Start using the serum 3 times a week and increase to daily use if your skin feels comfortable.
- Apply the serum after cleansing and toner, but right before your moisturizer. This step locks in deep hydration for dry skin.
- Gently press 2-3 drops of the serum into your skin using your palms. Let it absorb completely for a minute ⏱ before applying your next product.
- Since your skin is sensitive, apply the serum on completely dry skin for better tolerance and less irritation.
- Avoid the sensitive eye area during application. Always do a patch test before your first use to ensure your skin reacts well.
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

### What makes Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment a great fit for dry sensitive skin?

This treatment is a great fit because it uses niacinamide and alpha arbutin to brighten your skin tone while shea butter and glycerin provide essential hydration and barrier support. Tranexamic acid further helps reduce dark spots, and the formula is safe and free of harsh ingredients.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/)

### Which ingredients make this treatment a good fit for dry sensitive skin?

This treatment is a great fit because niacinamide and alpha arbutin help brighten your skin tone, while shea butter and glycerin provide essential hydration and barrier support. Tranexamic acid further aids in reducing discoloration to create a more uniform complexion without harsh or irritating ingredients.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/)

### What does Niacinamide do for dry sensitive skin?

Niacinamide helps dry sensitive skin by calming irritation and keeping moisture locked in so your face feels soft and smooth. It works to build up your skin barrier and calm redness while being very gentle and unlikely to cause irritation.
Sources: [Journal of Cosmetic Dermatology, 2004](https://pubmed.ncbi.nlm.nih.gov/17147561/), [International Journal of Pharmaceutics, 2013](https://pubmed.ncbi.nlm.nih.gov/23220080/)

### What does Vitamin C do for dry sensitive skin?

Vitamin C helps make dry, sensitive skin feel softer and calmer while improving firmness and reducing redness. Studies show that gentle forms of vitamin C can improve skin hydration and elasticity safely without causing irritation.
Sources: [Antioxidants, 2024](https://pubmed.ncbi.nlm.nih.gov/38397772/), [Journal of Cosmetic Dermatology, 2019](https://pubmed.ncbi.nlm.nih.gov/30924254/)

### Where does this treatment go in a skincare routine for dry sensitive skin?

This treatment goes in your evening routine after cleansing and a soothing toner, followed by a moisturizer. Applying treatments in the evening helps keep your routine simple and adds extra safety around sun exposure.

### Can I use this treatment with retinol, and in what order?

You can use this treatment alongside a retinol, applying the treatment in your evening routine after cleansing and toning, and following it with a moisturizer, while introducing them slowly to keep your dry, sensitive skin calm. This formulation has a safe profile without harsh ingredients, making it unlikely to cause irritation when paired thoughtfully with other actives.

### How often should I use this treatment?

This treatment works best when used in the evening as part of your routine. The formulation is safe for your skin and is unlikely to cause irritation when applied regularly.

### Can this treatment clog pores, cause breakouts or purging for dry sensitive skin?

This treatment is unlikely to clog pores or cause breakouts for your dry sensitive skin, as potential breakouts are a low complaint and the formula contains no harsh or irritating ingredients.

### Is this treatment fragrance-free and alcohol-free?

Yes, it has no fragrance and no drying alcohol. Cetyl alcohol is a fatty alcohol, which soften the skin.

## Alternatives for dry sensitive skin

- [SkinCeuticals C E Ferulic](https://lovi.care/skincare/p/skinceuticals/c-e-ferulic/for/dry-sensitive-skin) — Superior fit — $39.99 at Amazon
- [Paula's Choice RESIST Super Antioxidant Concentrate Serum](https://lovi.care/skincare/p/paula-s-choice/resist-super-antioxidant-concentrate-serum/for/dry-sensitive-skin) — Superior fit — $53.00 at Amazon
- [Beauty of Joseon Propolis + Niacinamide Glow Serum](https://lovi.care/skincare/p/beauty-of-joseon/propolis-niacinamide-glow-serum/for/dry-sensitive-skin) — Superior fit — $16.75 at Amazon

## Pairs well with

- Cleanser: [CeraVe Hydrating Cleanser](https://lovi.care/skincare/p/cerave/hydrating-facial-cleanser/for/dry-sensitive-skin) — Superior fit — $16.97 at Amazon
- Soothing Toner: [Clarins Toning Lotion with Camomile](https://lovi.care/skincare/p/clarins/soothing-toning-lotion/for/dry-sensitive-skin) — Superior fit — $28.05 at Amazon
- Moisturizer with Sun Protection: [d'Alba UVessence Mild Waterfull Sun Cream SPF 50](https://lovi.care/skincare/p/d-alba/uvessence-mild-waterfull-sun-cream-spf-50/for/dry-sensitive-skin) — Superior fit — $18.99 at Amazon

## Where to buy

No store in United States has a checked price for this product, so the page shows none.

## Ingredients

Water, Niacinamide, Dimethyl Isosorbide, Isononyl Isononanoate, Tranexamic Acid, Dimethicone, Caprylic Capric Triglyceride, Alpha Arbutin, Cetyl Alcohol, Glyceryl Stearate, Pentylene Glycol, Propanediol, C9-12 Alkane, Citric Acid, Glyceryl Stearate Se, Butyrospermum Parkii Butter Shea Butter, Tetrahexyldecyl Ascorbate, Kojic Acid, Resveratrol, Tocopheryl Acetate, Diethylhexyl Syringylidenemalonate, Hydrangea Arborescens Root Extract, Morus Alba Root Extract, Scutellaria Lateriflora Extract, Hydrolyzed Protein, Silica, Sodium Stearoyl Glutamate, Coco-Caprylate Caprate, Dimethiconol, Glycerin, Sodium Phytate, Potassium Sorbate, Sodium Benzoate, Caprylyl Glycol, Hexylene Glycol, Polysorbate 20, Ceteth-20, Steareth-20, Polyacrylate Crosspolymer-6, Peg-75 Stearate, Titanium Dioxide Ci 77891, Phenoxyethanol
## About the Lovi Fit

Lovi: Unbiased, science-based skincare AI trained on real user outcomes.

Lovi calculates every fit score from the full ingredient list with brand-independent rules its dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update. Levels from best to worst: Superior, High, Average, Low, Caution, Warning.

Behind this fit score: Nadia Kapleva, MS (Co-founder, Medical Director); Alexey Shagraev, PhD (Co-founder, CEO and CTO); Dr. Sofía Perea Pérez, MD, MSc (Medical Board); Aishani Shah, MD (Medical Board); Asya Zubkova, MS (Medical Board); Hanna Kurets, MD (Medical Board, Medical Advisor); Elina Nazarenko, MD (Medical Board); Victoria Derkova, MS (Medical Board).

Page built Nov 8, 2026.

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## This page in other countries

- United States: https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/dry-sensitive-skin (this page)
- United Kingdom: https://lovi.care/skincare/uk/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/dry-sensitive-skin
- Ireland: https://lovi.care/skincare/ie/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/dry-sensitive-skin
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