PRODUCT REVIEW
Peter Thomas Roth Potent-C Niacinamide Discoloration Treatment
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Product summary
What can the product work for?
Anti-aging
What does the product description say?
Peter Thomas Roth's Potent-C Niacinamide Discoloration Treatment is an intensive brightening treatment with Vitamin C and Niacinamide that helps reduce the look of discoloration, dark spots and post-acne marks.
niacinamide
5.5% -
6.7%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
resveratrol
0.3% -
0.6%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
Helps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin tone
tetrahexyldecyl ascorbate
0.4% -
0.6%
Irritation risk:
Concentration: Insufficient!
Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.
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Evens skin tone
What does the product description say?
Potent-C Niacinamide Discoloration Treatment
kojic acid
0.3% -
0.6%
Irritation risk:
Concentration: Effectiveness: HIGH
Helps to reduce hyperpigmentation and neutralize free radicals. Can be irritating
niacinamide
5.5% -
6.7%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
tranexamic acid
2.3% -
2.8%
Irritation risk:
Concentration: Effectiveness: HIGH
An amino acid that is effective in reducing hyperpigmentation and evening out the skin tone. It can also help in skin barrier recovery. It is used to treat melasma, especially with injections and when taken orally
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Anti-blemish
niacinamide
5.5% -
6.7%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
Moisturizing
glycerin
0.3% -
0.5%
Irritation risk:
Concentration: Effectiveness: HIGH
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
niacinamide
5.5% -
6.7%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
tranexamic acid
2.3% -
2.8%
Irritation risk:
Concentration: Effectiveness: HIGH
An amino acid that is effective in reducing hyperpigmentation and evening out the skin tone. It can also help in skin barrier recovery. It is used to treat melasma, especially with injections and when taken orally
Show more
Anti-oxidation
kojic acid
0.3% -
0.6%
Irritation risk:
Concentration: Effectiveness: HIGH
Helps to reduce hyperpigmentation and neutralize free radicals. Can be irritating
resveratrol
0.3% -
0.6%
Irritation risk:
Concentration: Effectiveness: HIGH
Helps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin tone
hydrangea arborescens root extract
0.25% -
0.45%
Irritation risk:
Concentration: Effectiveness:
LOW
Plant extract that might help neutralize free radicals, but evidence of effectiveness in skin is lacking
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Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Evens skin tone |
Total Promises Fulfilled score:
100/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 2
Potential irritants
kojic acid
0.3% -
0.6%
Irritation risk:
Works for:
Anti-oxidation,
Evens skin tone
Helps to reduce hyperpigmentation and neutralize free radicals. Can be irritating
hydrangea arborescens root extract
0.25% -
0.45%
Irritation risk:
Works for:
Anti-oxidation
Plant extract that might help neutralize free radicals, but evidence of effectiveness in skin is lacking
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Comodogenic ingredients
glyceryl stearate se
0.45% -
0.65%
Irritation risk: Comedogenicity: Medium
Works for:
Cleansing,
Moisturizing
Used to stabilize the product formulations and works as an emollient
butyrospermum parkii butter
0.45% -
0.7%
Irritation risk: Comedogenicity: High
Works for:
Moisturizing,
Anti-aging,
Anti-oxidation
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
User reviews (0)
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| Irritancy | IRRITANCY
MEDIUM
| IRRITANCY
LOW
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LOW
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LOW
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LOW
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LOW
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MEDIUM
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LOW
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LOW
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LOW
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Ingredients & concentrations
All ingredients
Key Actives
niacinamide
5.5% -
6.7%
Irritation risk:
Works for:
Evens skin tone,
Anti-blemish,
Anti-aging,
Moisturizing,
Reduces irritation,
Anti-inflammatory,
Reduces redness,
Antibacterial
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
butyrospermum parkii butter
0.45% -
0.7%
Irritation risk: Comedogenicity: High
Works for:
Moisturizing,
Anti-aging,
Anti-oxidation
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
Show more
Potential irritants
kojic acid
0.3% -
0.6%
Irritation risk:
Works for:
Anti-oxidation,
Evens skin tone
Helps to reduce hyperpigmentation and neutralize free radicals. Can be irritating
hydrangea arborescens root extract
0.25% -
0.45%
Irritation risk:
Works for:
Anti-oxidation
Plant extract that might help neutralize free radicals, but evidence of effectiveness in skin is lacking
Show more
Comodogenic ingredients
glyceryl stearate se
0.45% -
0.65%
Irritation risk: Comedogenicity: Medium
Works for:
Cleansing,
Moisturizing
Used to stabilize the product formulations and works as an emollient
butyrospermum parkii butter
0.45% -
0.7%
Irritation risk: Comedogenicity: High
Works for:
Moisturizing,
Anti-aging,
Anti-oxidation
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
All ingredients
niacinamide
5.5% -
6.7%
Irritation risk:
Works for:
Evens skin tone,
Anti-blemish,
Anti-aging,
Moisturizing,
Reduces irritation,
Anti-inflammatory,
Reduces redness,
Antibacterial
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
dimethyl isosorbide
4.5% -
5.6%
Irritation risk:
Used to dissolve other ingredients in a product and can enhance their ability to penetrate the skin
Show more
Ingredient list view
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, Tetrahexyldecyl ascorbate, Kojic acid, Resveratrol, Tocopheryl acetate, Diethylhexyl syringylidenemalonate, Hydrangea arborescens root extract, Morus alba root extract, Scutellaria lateriflora extract, Hydrolyzed vegetable 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
Sources
- Niacinamide - mechanisms of action and its topical use in dermatology
- Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88–93. doi:10.1111/j.1473-2130.2004.00115.x
- Activity enhancement of ferulic acid with dimethyl isosorbride in cosmetic compositions
- Effect of tranexamic acid on melasma: a clinical trial with histological evaluation
- Tranexamic acid accelerates skin barrier recovery and upregulates occludin in damaged skin
- The amelioration effect of tranexamic acid in wrinkles induced by skin dryness
- Efficacy and possible mechanisms of topical tranexamic acid in melasma
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Double-blind, half-face study comparing topical vitamin C and vehicle for rejuvenation of photodamage
- Application of tetra-isopalmitoyl ascorbic acid in cosmetic formulations: Stability studies and in vivo efficacy
- TOPICAL TREATMENT OF MELASMA
- Postinflammatory hyperpigmentation: a review of the epidemiology, clinical features, and treatment options in skin of color.
- Skin permeation and antioxidant efficacy of topically applied resveratrol
- Chemoprevention of skin cancer by grape constituent resveratrol: relevance to human disease?
- Evaluation of efficacy and tolerance of a nighttime topical antioxidant containing resveratrol, baicalin, and vitamin e for treatment of mild to moderately photodamaged skin
- Resveratrol as a Multifunctional Topical Hypopigmenting Agent
- Anti-aging properties of resveratrol: review and report of a potent new antioxidant skin care formulation
- Resveratrol: A Unique Antioxidant Offering a Multi-Mechanistic Approach for Treating Aging Skin
- POSSIBLE TOXICITY OF HERBAL REMEDIES
- Safety Assessment of Alkyl Esters as Used in Cosmetics