Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum
The Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum is a serums, essence, ampoule. Our analysis of its 39 ingredients (32 low-risk) rates it Excellent (95/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.
The Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum is a serums, essence, ampoule. Our analysis of its 39 ingredients (32 low-risk) rates it Excellent (95/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
|
|
|
Water
(Solvent) |
|
|
|
|
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
|
|
|
|
2-O-Ethyl Ascorbic Acid
(Skin Conditioning) |
|
|
|
|
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
|
|
|
|
Glycereth-7 Triacetate
(Emollient) |
|
|
|
|
Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent) |
Bad for Sensitive Skin
|
|
|
|
SD Alcohol 40-B
(Astringent, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
|
|
|
|
Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling) |
|
|
|
|
Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
|
|
|
|
Ascorbic Acid (Vitamin C)
(Antioxidant, Fragrance, Ph Adjuster, Skin Conditioning, Buffering Agent, Masking) |
Good for Dry Skin
|
|
|
|
Collagen Amino Acids
(Hair Conditioning, Skin Conditioning, Moisturising) |
|
|
|
|
Superoxide Dismutase
(Reducing, Skin Conditioning, Antioxidant) |
|
|
|
|
Glycine
(Buffering Agent, Fragrance, Hair Conditioning, Skin Conditioning Agent Miscellaneous, Antistatic Agent, Skin Conditioning) |
|
|
|
|
Carnitine HCl
(Humectant, Skin Conditioning) |
|
|
|
|
Ubiquinone
(Antioxidant, Skin Conditioning) |
|
|
|
|
Hexylresorcinol
(Antimicrobial Agent, Cosmetic Biocide) |
|
|
|
|
Emblica Officinalis Fruit Extract
(Skin Conditioning) |
|
|
|
|
Hydrolyzed Soy Protein
(Antistatic Agent, Hair Conditioning, Humectant, Skin Conditioning) |
|
|
|
|
Tetrahexyldecyl Ascorbate
(Antioxidant, Skin Conditioning) |
|
|
|
|
Quercetin
(Antioxidant, Skin Conditioning) |
|
|
|
|
Mandelic Acid
(Antimicrobial) |
|
|
|
|
Pueraria Lobata Root Extract
(Humectant) |
|
|
|
|
Curcuma Longa (Turmeric) Root Extract | |
|
|
|
Phytic Acid
(Chelating Agent, Oral Care Agent) |
|
|
|
|
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
|
|
|
|
Tetrasodium EDTA
(Chelating Agent) |
|
|
|
|
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking) |
|
|
|
|
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
|
|
|
|
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
|
|
|
|
Polysorbate 20
(Emulsifying, Surfactant) |
Fungal Acne Trigger
|
|
|
|
t-Butyl Alcohol
(Denaturant, Fragrance, Solvent, Perfuming) |
|
|
|
|
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent) |
|
|
|
|
Polysorbate 80
(Denaturant, Emulsifying, Surfactant) |
Fungal Acne Trigger
|
|
|
|
Denatonium Benzoate
(Denaturant, Fragrance, Masking) |
|
|
|
|
Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking) |
Allergens
|
|
|
|
Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
|
|
|
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
|
|
|
|
Potassium Sorbate
(Fragrance, Preservative) |
|
|
|
|
Caramel
(Colorant, Fragrance, Cosmetic Colorant, Masking) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
The concentrations these actives are typically effective at in research — not a measurement of this product.
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.
2-O-Ethyl Ascorbic Acid, Ascorbic Acid (Vitamin C), Tetrahexyldecyl Ascorbate
Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.
Niacinamide
OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.
Lactic Acid, Mandelic 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.
From the community
Used this product? Rate it in 10 seconds
Alternatives