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

**Lovi Fit: High fit for acne-prone skin.**
Combination Skin Fit: High · Effectiveness: High · Safety: High.

Page: https://lovi.care/skincare/p/peter-thomas-roth/potent-c-niacinamide-discoloration-treatment/for/acne-prone-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 acne-prone skin: breakouts, blackheads, and post-acne marks. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

A great choice for acne-prone skin; a few serums fit it even better.

## Why this fit

- Highly suitable for your combination skin, this treatment leverages niacinamide and tranexamic acid to regulate melanogenesis and reduce inflammation, effectively addressing your concerns with acne, blemishes, and breakouts.
- The inclusion of alpha arbutin further enhances its brightening and skin tone evening capabilities, providing moderate benefits for hyperpigmentation.
- The formulation is safe for your skin, containing soothing ingredients like glycerin and avoiding harsh or prohibited substances.

## 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 (this page)
- [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
- [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

- 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 your serum as part of your PM routine and start 3x/week before working up to daily use.
- Apply this treatment after cleansing and toner, and before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and let it absorb for a minute.
- Apply the product on clean, dry skin to help manage your breakouts safely.
- Avoid the eye area and do a patch test before your first use.
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

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

This treatment is a great fit because it uses niacinamide and tranexamic acid to calm inflammation and breakouts on acne-prone skin, while alpha arbutin helps brighten dark spots. Its safe formula also includes soothing ingredients like glycerin and avoids harsh irritants.

### Which ingredients make this treatment a good fit for acne-prone skin?

This treatment is a great fit for your acne-prone skin because it contains niacinamide and tranexamic acid, which help reduce inflammation and breakouts. It also includes alpha arbutin and kojic acid to brighten dark spots, while glycerin keeps your skin calm and safe from irritation.

### What does Niacinamide do for acne-prone skin?

Niacinamide helps acne-prone skin by reducing both inflamed and uninflamed breakouts and calming redness. It is also very helpful for keeping oily skin balanced by cutting down on excess oil production, and it is well tolerated by most people.
Sources: [Journal of Cosmetic Dermatology, 2024](https://pubmed.ncbi.nlm.nih.gov/38299457/), [Cureus, 2024](https://pubmed.ncbi.nlm.nih.gov/38725769/)

### What does Vitamin C do for acne-prone skin?

Vitamin C helps brighten dark spots left behind by breakouts and calms redness in acne-prone skin. Daily use may also help improve overall skin clarity and support an even skin tone.
Sources: [Journal of Cosmetic Dermatology, 2024](https://pubmed.ncbi.nlm.nih.gov/38525606/), [Journal of Cosmetic Dermatology, 2019](https://pubmed.ncbi.nlm.nih.gov/30924254/)

### Where does this treatment go in a skincare routine for acne-prone skin?

This treatment goes in the evening routine after cleansing and toning, and before moisturizing. Putting it at night helps avoid extra sun sensitivity while addressing blemishes and dark spots.
Sources: [International Journal of Cosmetic Science, 2020](https://pubmed.ncbi.nlm.nih.gov/31461548/)

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

You can use this treatment alongside a retinol, but it is best to apply them on alternate nights or separate them into different routines to keep your skin calm and avoid irritation. Using soothing ingredients like glycerin helps keep your skin comfortable when combining active treatments.

### How often should I use this treatment?

You can use this treatment in the evening, following your cleanser and toner. Lovi routines start treatments once a week to help your skin adjust, and you can carefully use it more often if your skin tolerates it well.
Sources: [Facial Plastic Surgery, 2014](https://pubmed.ncbi.nlm.nih.gov/24488631/)

### Can this treatment clog pores, cause breakouts or purging for acne-prone skin?

This treatment is a great fit for your acne-prone skin because it uses niacinamide and tranexamic acid to calm inflammation and help clear blemishes. Reviewers rarely report breakouts, and the formula has a safe structure that is unlikely to clog pores.

### 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 acne-prone skin

- [Beauty of Joseon Propolis + Niacinamide Glow Serum](https://lovi.care/skincare/p/beauty-of-joseon/propolis-niacinamide-glow-serum/for/acne-prone-skin) — Superior fit — $16.75 at Amazon
- [Neogen Dermalogy Real Niacinamide 15% Firming Serum](https://lovi.care/skincare/p/neogen-dermalogy/real-niacinamide-15-firming-serum/for/acne-prone-skin) — Superior fit — $28.88 at Amazon
- [SkinCeuticals C E Ferulic](https://lovi.care/skincare/p/skinceuticals/c-e-ferulic/for/acne-prone-skin) — Superior fit — $39.99 at Amazon

## Pairs well with

- Cleanser: [CeraVe Foaming Facial Cleanser](https://lovi.care/skincare/p/cerave/foaming-facial-cleanser/for/acne-prone-skin) — Superior fit — $15.97 at Amazon
- Hydrating Toner: [SOME BY MI Snail Truecica Miracle Repair Toner](https://lovi.care/skincare/p/some-by-mi/snail-truecica-miracle-repair-toner/for/acne-prone-skin) — Superior fit — $15.60 at Amazon
- Moisturizer: [Some By Mi Yuja Niacin Brightening Moisture Gel Cream](https://lovi.care/skincare/p/some-by-mi/yuja-niacin-brightening-moisture-gel-cream/for/acne-prone-skin) — Superior fit — $15.50 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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