40
AGreat
Peter Thomas Roth Glycolic Acid 10% Hydrating Gel
The Peter Thomas Roth Glycolic Acid 10% Hydrating Gel is a moisturizer. Our analysis of its 16 ingredients (9 low-risk) rates it Excellent (80/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.
The Peter Thomas Roth Glycolic Acid 10% Hydrating Gel is a moisturizer. Our analysis of its 16 ingredients (9 low-risk) rates it Excellent (80/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
Dry Skin
1/3
Oily/Acne-Prone Skin
1/0
Sensitive Skin
5/7
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
1
|
|
Water
(Solvent) |
|
4
|
B
|
Glycolic Acid
(Exfoliant, Ph Adjuster, Buffering Agent) |
Good for Oily Skin
Bad for Sensitive Skin
|
|
2
|
A
|
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent) |
Good for Dry Skin
Fungal Acne Trigger
|
|
3
|
|
Ammonium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent) |
|
|
1
|
A
|
Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
|
|
B
|
Aloe Barbadensis Leaf Juice
(Skin Conditioning) |
Good for Sensitive Skin
|
|
3
|
|
Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
|
9
|
|
Retinyl Palmitate (Vitamin A) |
Good for Dry Skin
Fungal Acne Trigger
|
|
1
|
A
|
Ascorbyl Palmitate
(Antioxidant, Masking) |
Fungal Acne Trigger
|
|
1
|
A
|
Phospholipids
(Skin Conditioning) |
|
|
4
|
A
|
Methylparaben
(Fragrance, Preservative) |
Paraben
|
|
6
|
A
|
Imidazolidinyl Urea
(Preservative) |
|
|
1
|
A
|
Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
|
|
1
|
A
|
Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling) |
|
|
6
|
A
|
BHT
(Antioxidant, Fragrance, Masking) |
|
|
4
|
|
Alcohol Denat.
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
|
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
Contains ingredients some choose to avoid or double-check while pregnant or nursing.
Topical retinoids (retinol, retinaldehyde, retinyl esters) are widely advised against in pregnancy as a precaution. The strongest evidence is for ORAL retinoids; topical absorption is low, but most clinicians err on the side of caution.
This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.
The concentrations these actives are typically effective at in research — not a measurement of this product.
Most studied between 0.1% and 1%. Higher is not automatically better — irritation climbs with dose, so a well-formulated lower strength is often the sweet spot.
Retinyl Palmitate (Vitamin A)
L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.
Ascorbyl Palmitate
OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.
Glycolic Acid
INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.
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