Dr. Dennis Gross Skincare Clinical Concentrate Purifying Booster

Dr. Dennis Gross Skincare

Dr. Dennis Gross Skincare Clinical Concentrate Purifying Booster

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About this product

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.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
21
Low-risk
14
Fragrance
Contains fragrance
Origin
United States

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 4/5
Good for dry skin
Algae Extract Butylene Glycol Camellia Sinensis Leaf Extract Lactic Acid
Caution for dry skin
Rosa Centifolia Flower Extract Salicylic Acid Camellia Sinensis Leaf Extract Polysorbate 20 Hamamelis Virginiana (Witch Hazel) Extract
Oily/Acne-Prone Skin 5/0
Good for oily/acne-prone skin
Rosa Centifolia Flower Extract Salicylic Acid Salix Alba (Willow) Bark Extract Camellia Sinensis Leaf Extract Hamamelis Virginiana (Witch Hazel) Extract
Sensitive Skin 3/9
Good for sensitive skin
Camellia Sinensis Leaf Extract Farnesol Hamamelis Virginiana (Witch Hazel) Extract
Caution for sensitive skin
Algae Extract Rosa Centifolia Flower Extract Butylene Glycol Tartaric Acid Salicylic Acid Camellia Sinensis Leaf Extract Lactic Acid Farnesol Fragrance

Ingredients list

21 total
Lower hazard (1) Higher hazard (8)
All21 Skin Conditioning15 Masking7 Fragrance6 Buffering Agent4 Humectant4 Ph Adjuster4 Exfoliant3 Oral Care Agent3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Rosa Centifolia Flower Extract
(Astringent, Masking, Skin Conditioning, Tonic)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
Salix Alba (Willow) Bark Extract
1
Algae Extract
(Fragrance, Humectant, Oral Care Agent, Skin Conditioning, Emollient)
Opuntia Ficus-Indica Extract
(Skin Conditioning)
4
Farnesol
(Fragrance, Deodorant, Masking, Solvent, Soothing)
Allergens
Allergens
1
(-)-alpha-isabolol
1
Potassium Azeloyl Diglycinate
(Skin Conditioning)
1
Mandelic Acid
(Antimicrobial)
1
Tartaric Acid
(Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
B
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber)
Good for Oily Skin
Good for Oily Skin
4
B
Glycolic Acid
(Exfoliant, Ph Adjuster, Buffering Agent)
Good for Oily Skin
Good for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
4
B
Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Hamamelis Virginiana (Witch Hazel) Extract
(Cosmetic Astringent, Skin Conditioning, Hair Conditioning, Soothing)
Good for Oily Skin
Good for Oily Skin
4
B
Salicylic Acid
(Antiacne Agent, Antidandruff Agent, Corn/Callus/Wart Remover, Denaturant, Exfoliant, Fragrance, Hair Conditioning, Skin Conditioning, Keratolytic, Masking, Preservative)
Good for Oily Skin
Good for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Phytic Acid
(Chelating Agent, Oral Care Agent)
3
B
Potassium Hydroxide
(Ph Adjuster, Buffering Agent)
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
8
Fragrance
(Deodorant, Masking, Perfuming)
3
5
Chlorophyllin-Copper Complex
(Cosmetic Colorant, Deodorant)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Rosa Centifolia Flower Extract
Astringent, Skin Conditioning
Butylene Glycol
Skin Conditioning, Humectant
Algae Extract
Humectant, Skin Conditioning
Opuntia Ficus-Indica Extract
Skin Conditioning
Farnesol
Soothing
Potassium Azeloyl Diglycinate
Skin Conditioning

Benefits

Good for oily/acne-prone skin

Concerns

Contains eu allergen
Not fungal acne (malassezia) safe
Fragrance — higher EWG
May not suit dry skin
May not suit sensitive skin

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 →

Ingredients explained

Rosa Centifolia Flower Extract
Astringent, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 AstringentMaskingSkin conditioningTonic
Salix Alba (Willow) Bark Extract
Other
Low-hazard ingredient.Read moreShow less
EWG 1
Algae Extract
Fragrance, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceHumectantOral care agentSkin conditioningEmollient
Opuntia Ficus-Indica Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
(-)-alpha-isabolol
Other
Low-hazard ingredient.Read moreShow less
EWG 1
Potassium Azeloyl Diglycinate
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Mandelic Acid
Antimicrobial
Low-hazard ingredient.Read moreShow less
EWG 1 Antimicrobial
Phytic Acid
Chelating agent, Oral care agent
Low-hazard ingredient.Read moreShow less
EWG 1 Chelating agentOral care agent
Potassium Hydroxide
Ph adjuster, Buffering agent
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Ph adjusterBuffering agent
Disodium EDTA
Chelating agent, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Chelating agentViscosity controlling
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Farnesol
Fragrance, Deodorant
Low-to-moderate hazard.Read moreShow less
EWG 4 FragranceDeodorantMaskingSolventSoothing Allergens
Tartaric Acid
Fragrance, Ph adjuster
Skin irritation can occur at high concentrationRead moreShow less
EWG 1 FragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
Camellia Sinensis Leaf Extract
Antimicrobial, Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B AntimicrobialAntioxidantAstringentEmollientHumectantMaskingOral care agentSkin conditioningSkin protectingTonicUv absorber Good for Oily Skin
Glycolic Acid
Exfoliant, Ph adjuster
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B ExfoliantPh adjusterBuffering agent Good for Oily SkinBad for Sensitive Skin
Lactic Acid
Exfoliant, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B ExfoliantFragranceHumectantPh adjusterSkin-conditioning agent -humectantSkin conditioningBuffering agent Bad for Sensitive Skin
Hamamelis Virginiana (Witch Hazel) Extract
Cosmetic astringent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Cosmetic astringentSkin conditioningHair conditioningSoothing Good for Oily Skin
Salicylic Acid
Antiacne agent, Antidandruff agent
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B Antiacne agentAntidandruff agentCorn/callus/wart removerDenaturantExfoliantFragranceHair conditioningSkin conditioningKeratolyticMaskingPreservative Good for Oily SkinBad for Sensitive Skin
Fragrance
Deodorant, Masking
Higher-hazard ingredient.Read moreShow less
EWG 8 DeodorantMaskingPerfuming
Chlorophyllin-Copper Complex
Cosmetic colorant, Deodorant
Moderate-hazard ingredient.Read moreShow less
EWG 3–5 Cosmetic colorantDeodorant

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.
  • 3 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Use with caution
BHA (salicylic) (Salicylic Acid)

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.

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

BHA (salicylic) 0.5–2%

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

AHA (acid exfoliant) 5–10% (OTC)

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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