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

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

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

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

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

This fit is calculated for the concerns frequently associated with sensitive skin: redness, stinging, and reactions to new products. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

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

## Why this fit

- Highly suitable for your normal skin, this treatment effectively addresses redness and irritation with niacinamide and tranexamic acid, which calm inflammation and regulate melanogenesis.
- The inclusion of alpha arbutin further enhances its brightening capabilities, working synergistically to improve skin tone and discoloration.
- The formulation is safe for your sensitive skin, containing no harsh ingredients that could cause irritation.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/sa/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/oily-skin): Average
- [Dry skin](https://lovi.care/skincare/sa/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/dry-skin): Superior
- [Combination skin](https://lovi.care/skincare/sa/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/combination-skin): High
- [Sensitive skin](https://lovi.care/skincare/sa/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin): High (this page)
- [Acne-prone skin](https://lovi.care/skincare/sa/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/sa/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/dark-spots): Superior
- [Mature skin](https://lovi.care/skincare/sa/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/mature-skin): High
- [Dry sensitive skin](https://lovi.care/skincare/sa/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/dry-sensitive-skin): High
- [Oily acne-prone skin](https://lovi.care/skincare/sa/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/))
- 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/))
- 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/))
- 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/))
- Aziderm cream, Neostrata Pigment Lightening Gel, and an arbutin 5% formulation significantly reduced skin pigmentation in healthy female volunteers compared to untreated controls. ([The Journal of Clinical and Aesthetic Dermatology, 2022](https://pubmed.ncbi.nlm.nih.gov/35309879/))
- 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 your serum in the PM routine, starting 3 times a week before building up to daily use if your skin is happy.
- Apply the serum after cleansing and toning, but before putting on your moisturizer for the best results.
- Gently press 2-3 drops of the serum into your skin and wait a minute ⏱ for it to soak in.
- Since your skin is sensitive and easily irritated, apply the serum on completely dry skin to help keep it calm.
- Always do a patch test before your first use and avoid getting the serum too close to your eyes .
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

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

This treatment is a great fit for sensitive skin because it uses niacinamide and tranexamic acid to calm redness and irritation without harsh ingredients. It also includes alpha arbutin and kojic acid, which safely help brighten skin tone and fade discoloration.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/)

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

This treatment is a great fit for sensitive skin because it contains niacinamide and tranexamic acid, which calm redness and irritation. It also includes alpha arbutin and kojic acid to brighten skin tone safely without harsh ingredients that could cause discomfort.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/)

### What does Niacinamide do for sensitive skin?

Niacinamide helps calm sensitive skin by strengthening the skin barrier and reducing redness and irritation. It is very well tolerated and may improve overall comfort and resilience with regular use.
Sources: [Cutis, 2005](https://pubmed.ncbi.nlm.nih.gov/16209160/), [Journal of Cosmetic Dermatology, 2004](https://pubmed.ncbi.nlm.nih.gov/17147561/)

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

For sensitive skin, Vitamin C helps calm redness and evens out dark spots while improving overall skin quality and radiance. Daily use is generally well-tolerated and may help protect against environmental stress.
Sources: [Journal of Cosmetic Dermatology, 2019](https://pubmed.ncbi.nlm.nih.gov/30924254/), [Journal of Cosmetic Dermatology, 2024](https://pubmed.ncbi.nlm.nih.gov/38525606/)

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

This treatment goes in your evening routine, after cleansing and toning and before moisturizing. Putting it in the evening keeps things simple and provides extra safety around sun exposure.

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

This treatment is unlikely to cause irritation on your sensitive skin, but combining it with a strong ingredient like retinol may be too much at once. Try using them on alternate nights or apply the retinol first, let it absorb fully, and then follow with this treatment to keep your skin calm and smooth.

### How often should I use this treatment?

Use this treatment in the evening as part of your routine. It is a great fit for sensitive skin and helps calm redness while improving skin tone.
Sources: [Heliyon, 2023](https://pubmed.ncbi.nlm.nih.gov/37681127/)

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

This treatment is unlikely to cause breakouts or clog pores on sensitive skin because it avoids harsh ingredients that trigger irritation. The formula is generally safe for your skin type, though any new product always carries a low potential for minor reactions.

### 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 sensitive skin

- [Paula's Choice RESIST Super Antioxidant Concentrate Serum](https://lovi.care/skincare/sa/p/paula-s-choice/resist-super-antioxidant-concentrate-serum/for/sensitive-skin) — Superior fit — SAR 461.00 at Amazon
- [SkinCeuticals C E Ferulic](https://lovi.care/skincare/sa/p/skinceuticals/c-e-ferulic/for/sensitive-skin) — High fit — SAR 865.37 at Amazon
- [Neogen Dermalogy Real Vitamin C Serum](https://lovi.care/skincare/sa/p/neogen-dermalogy/real-vitamin-c-serum/for/sensitive-skin) — High fit — SAR 130.97 at Amazon

## Pairs well with

- Cleanser: [Fresh Soy Face Cleanser](https://lovi.care/skincare/sa/p/fresh/soy-face-cleanser/for/sensitive-skin) — Superior fit — SAR 191.00 at Amazon
- Soothing Toner: [Clarins Toning Lotion with Camomile](https://lovi.care/skincare/sa/p/clarins/soothing-toning-lotion/for/sensitive-skin) — Superior fit — SAR 141.00 at Amazon
- Moisturizer with Sun Protection: [Bioderma Bioderma Photoderm Mineral SPF 50+](https://lovi.care/skincare/sa/p/bioderma/photoderm-mineral-fluide-spf50/for/sensitive-skin) — Superior fit — SAR 132.22 at Amazon

## Where to buy

No store in Saudi Arabia 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.

More from Lovi: https://lovi.care/skincare/llms.txt

## This page in other countries

- United States: https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin
- United Kingdom: https://lovi.care/skincare/uk/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin
- Ireland: https://lovi.care/skincare/ie/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin
- Germany: https://lovi.care/skincare/de/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin
- France: https://lovi.care/skincare/fr/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin
- Italy: https://lovi.care/skincare/it/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin
- Netherlands: https://lovi.care/skincare/nl/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin
- Spain: https://lovi.care/skincare/es/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin
- Canada: https://lovi.care/skincare/ca/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin
- Australia: https://lovi.care/skincare/au/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin
- Singapore: https://lovi.care/skincare/sg/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin
- Saudi Arabia: https://lovi.care/skincare/sa/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin (this page)
- United Arab Emirates: https://lovi.care/skincare/ae/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/sensitive-skin