PRODUCT REVIEW
Peter Thomas Roth Glycolic Acid 8% Toner
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What can the product work for?
Anti-aging
What does the product description say?
Exfoliates to improve the look of fine lines, wrinkles, pores, uneven skin tone, radiance, and smoothness. . Witch Hazel.
glycolic acid
5.1% -
7.6%
Irritation risk:
Concentration: Effectiveness: HIGH
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
sodium ascorbyl phosphate
0.2% -
0.7%
Irritation risk:
Concentration: Effectiveness:
LOW
A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C
lactic acid
0.15% -
0.55%
Irritation risk:
Concentration: Insufficient!
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
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Evens skin tone
What does the product description say?
Exfoliates to improve the look of fine lines, wrinkles, pores, uneven skin tone, radiance, and smoothness. . Witch Hazel.
glycolic acid
5.1% -
7.6%
Irritation risk:
Concentration: Effectiveness: HIGH
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
lactic acid
0.15% -
0.55%
Irritation risk:
Concentration: Insufficient!
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
camellia sinensis leaf extract
0.4% -
0.95%
Irritation risk:
Concentration: Insufficient!
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Exfoliation
What does the product description say?
Exfoliates to improve the look of fine lines, wrinkles, pores, uneven skin tone, radiance, and smoothness. . Witch Hazel.
glycolic acid
5.1% -
7.6%
Irritation risk:
Concentration: Effectiveness: HIGH
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
lactic acid
0.15% -
0.55%
Irritation risk:
Concentration: Insufficient!
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
allantoin
0.4% -
0.9%
Irritation risk:
Concentration: Insufficient!
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
Moisturizing
What does the product description say?
Allantoin, chamomile and aloe vera help soothe and calm the look of skin while sodium PCA leaves skin lightly hydrated.
arginine
0.2% -
0.75%
Irritation risk:
Concentration: Effectiveness: HIGH
An amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin
sodium pca
0.95% -
1.45%
Irritation risk:
Concentration: Effectiveness: HIGH
Naturally present in skin and helps to attract water to its upper layer
glycerin
1.3% -
1.9%
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
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Anti-oxidation
sodium ascorbyl phosphate
0.2% -
0.7%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C
camellia sinensis leaf extract
0.4% -
0.95%
Irritation risk:
Concentration: Insufficient!
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Exfoliation | |
| Evens skin tone | |
| Moisturizing |
Total Promises Fulfilled score:
93/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 0
Potential irritants
glycolic acid
5.1% -
7.6%
Irritation risk:
Works for:
Anti-aging,
Evens skin tone,
Exfoliation,
Anti-blemish
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
alcohol denat.
3.8% -
5.7%
Irritation risk:
Produces temporary toning effect. Can help dissolve other ingredients or preserve products
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Comodogenic ingredients
No comodogenic ingredients detected
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| Irritancy | IRRITANCY
MEDIUM
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MEDIUM
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LOW
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MEDIUM
| IRRITANCY
HIGH
| IRRITANCY
HIGH
| IRRITANCY
HIGH
| IRRITANCY
LOW
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LOW
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MEDIUM
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MEDIUM
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Ingredients & concentrations
All ingredients
Key Actives
allantoin
0.4% -
0.9%
Irritation risk:
Works for:
Anti-inflammatory,
Moisturizing,
Reduces irritation,
Reduces redness,
Anti-blemish,
Exfoliation
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
camellia sinensis leaf extract
0.4% -
0.95%
Irritation risk:
Works for:
Antibacterial,
Anti-oxidation,
Anti-aging,
Evens skin tone,
Moisturizing,
Anti-blemish
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Show more
Potential irritants
glycolic acid
5.1% -
7.6%
Irritation risk:
Works for:
Anti-aging,
Evens skin tone,
Exfoliation,
Anti-blemish
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
alcohol denat.
3.8% -
5.7%
Irritation risk:
Produces temporary toning effect. Can help dissolve other ingredients or preserve products
Show more
Comodogenic ingredients
We couldn't find any comodogenic ingredients in this product
All ingredients
glycolic acid
5.1% -
7.6%
Irritation risk:
Works for:
Anti-aging,
Evens skin tone,
Exfoliation,
Anti-blemish
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
alcohol denat.
3.8% -
5.7%
Irritation risk:
Produces temporary toning effect. Can help dissolve other ingredients or preserve products
Show more
Ingredient list view
Water, Glycolic acid, Alcohol denat., Methyl gluceth-20, Propylene glycol, Hamamelis virginiana water, Sodium hydroxide, Glycerin, Sodium pca, Aloe barbadensis leaf juice, Allantoin, Camellia sinensis leaf extract, Chamomilla recutita flower extract, Arginine, Sodium ascorbyl phosphate, Lactic acid, Citric acid, Polysorbate 20, Butylene glycol, Potassium sorbate, Sodium benzoate, Benzoic acid, Phenoxyethanol
Sources
- Photoprotective and antiinflammatory effects of topical glycolic acid
- Glycolic acid peel therapy – a current review
- Dual Effects of Alpha-Hydroxy Acids on the Skin
- Surfactants and experimental irritant contact dermatitis
- Propylene Glycol
- Skin-sensitizing and irritant properties of propylene glycol
- Glycerol and the skin: holistic approach to its origin and functions
- Profile of wound healing process induced by allantoin
- Sodium ascorbyl phosphate shows in vitro and in vivo efficacy in the prevention and treatment of acne vulgaris
- Sodium ascorbyl phosphate in topical microemulsions
- Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and Sodium Ascorbyl Phosphate as used in cosmetics
- Regulation of collagen synthesis in human dermal fibroblasts by the sodium and magnesium salts of ascorbyl-2-phosphate
- Comparison of clinical efficacies of sodium ascorbyl phosphate, retinol and their combination in acne treatment
- Application of l-ascorbic acid and its derivatives (sodium ascorbyl phosphate and magnesium ascorbyl phosphate) in topical cosmetic formulations: stability studies
- Sodium L-ascorbyl-2-phosphate 5% lotion for the treatment of acne vulgaris: a randomized, double-blind, controlled trial
- Epidermal and dermal effects of topical lactic acid