Dr. Dennis Gross Skincare Clinical Concentrate Purifying Booster
The Dr. Dennis Gross Skincare Clinical Concentrate Purifying Booster is a serums, essence, ampoule. Our analysis of its 21 ingredients (14 low-risk) rates it Excellent (85/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The Dr. Dennis Gross Skincare Clinical Concentrate Purifying Booster is a serums, essence, ampoule. Our analysis of its 21 ingredients (14 low-risk) rates it Excellent (85/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Rosa Centifolia Flower Extract
(Astringent, Masking, Skin Conditioning, Tonic) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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Polysorbate 20
(Emulsifying, Surfactant) |
Fungal Acne Trigger
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Salix Alba (Willow) Bark Extract | |
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Algae Extract
(Fragrance, Humectant, Oral Care Agent, Skin Conditioning, Emollient) |
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Opuntia Ficus-Indica Extract
(Skin Conditioning) |
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Farnesol
(Fragrance, Deodorant, Masking, Solvent, Soothing) |
Allergens
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(-)-alpha-isabolol | |
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Potassium Azeloyl Diglycinate
(Skin Conditioning) |
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Mandelic Acid
(Antimicrobial) |
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Tartaric Acid
(Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber) |
Good for Oily Skin
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Glycolic Acid
(Exfoliant, Ph Adjuster, Buffering Agent) |
Good for Oily Skin
Bad for Sensitive Skin
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Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent) |
Bad for Sensitive Skin
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Hamamelis Virginiana (Witch Hazel) Extract
(Cosmetic Astringent, Skin Conditioning, Hair Conditioning, Soothing) |
Good for Oily Skin
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Salicylic Acid
(Antiacne Agent, Antidandruff Agent, Corn/Callus/Wart Remover, Denaturant, Exfoliant, Fragrance, Hair Conditioning, Skin Conditioning, Keratolytic, Masking, Preservative) |
Good for Oily Skin
Bad for Sensitive Skin
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Phytic Acid
(Chelating Agent, Oral Care Agent) |
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Potassium Hydroxide
(Ph Adjuster, Buffering Agent) |
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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Fragrance
(Deodorant, Masking, Perfuming) |
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Chlorophyllin-Copper Complex
(Cosmetic Colorant, Deodorant) |
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.
Low-strength topical salicylic acid (BHA) is generally considered fine. Caution is usually reserved for high-strength leave-on products and salicylic peels.
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.
Salicylic acid is OTC-capped at 2%; 0.5–2% is the usual leave-on range. Much below that it acts more as a soothing agent than an exfoliant.
Salicylic Acid
OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.
Mandelic Acid, Tartaric Acid, Glycolic Acid, Lactic 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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