Mad Hippie Vitamin C Serum Versus Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum
Updated on January 21, 2025
Overview
What they are
These products are both vegan, cruelty-free, and reef safe serums. They have a total of 4 ingredients in common
Cool Features
They both contain Vitamin C
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any parabens, silicones or sulfates
What's Inside
They both contain fragrances
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Mad Hippie Vitamin C Serum 17 ingredients
Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum 38 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Mad Hippie Vitamin C Serum 17 ingredients
Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum 38 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningSodium Ascorbyl Phosphate
Antioxidant
C12-15 Alkyl Benzoate
AntimicrobialGlycerin
Humectant
Sodium Levulinate
Skin ConditioningSodium Anisate
AntimicrobialSalvia Sclarea Oil
Masking
Citrus Grandis Fruit Extract
Astringent
Hyaluronic Acid
Humectant
Amorphophallus Konjac Root Powder
Abrasive
Aloe Barbadensis Leaf
Masking
Tocotrienols
Skin ConditioningFerulic Acid
Antimicrobial
Chamomilla Recutita Extract
Skin Conditioning
Sodium Phytate
Xanthan Gum
EmulsifyingHydroxyethylcellulose
Emulsion StabilisingWater, Sodium Ascorbyl Phosphate, C12-15 Alkyl Benzoate, Glycerin, Sodium Levulinate, Sodium Anisate, Salvia Sclarea Oil, Citrus Grandis Fruit Extract, Hyaluronic Acid, Amorphophallus Konjac Root Powder, Aloe Barbadensis Leaf, Tocotrienols, Ferulic Acid, Chamomilla Recutita Extract, Sodium Phytate, Xanthan Gum, Hydroxyethylcellulose
Water
Skin ConditioningGlycerin
Humectant
3-O-Ethyl Ascorbic Acid
Skin Conditioning
Niacinamide
Smoothing
Glycereth-7 Triacetate
EmollientLactic Acid
Buffering
Sd Alcohol 40-B
Astringent
Hydroxyethylcellulose
Emulsion StabilisingDimethyl Isosorbide
SolventAscorbic Acid
Antioxidant
Collagen Amino Acids
Moisturising
Superoxide Dismutase
Antioxidant
Glycine
Buffering
Carnitine Hcl
HumectantUbiquinone
Antioxidant
Hexylresorcinol
Antimicrobial
Emblica Officinalis Fruit Extract
Skin ConditioningHydrolyzed Soy Protein
Humectant
Tetrahexyldecyl Ascorbate
Antioxidant
Isoquercetin
Antioxidant
Mandelic Acid
Antimicrobial
Pueraria Lobata Root Extract
HumectantCurcuma Longa Root Extract
Masking
Phytic Acid
Citric Acid
Buffering
Tetrasodium EDTA
Sodium Citrate
BufferingButylene Glycol
Humectant
Xanthan Gum
EmulsifyingPolysorbate 20
Emulsifying
T-Butyl Alcohol
Perfuming
Sodium Hydroxide
BufferingPolysorbate 80
Emulsifying
Denatonium Benzoate
Masking
Benzyl Alcohol
Perfuming
Phenoxyethanol
Preservative
Sodium Benzoate
Masking
Potassium Sorbate
Preservative
Water, Glycerin, 3-O-Ethyl Ascorbic Acid, Niacinamide, Glycereth-7 Triacetate, Lactic Acid, Sd Alcohol 40-B, Hydroxyethylcellulose, Dimethyl Isosorbide, Ascorbic Acid, Collagen Amino Acids, Superoxide Dismutase, Glycine, Carnitine Hcl, Ubiquinone, Hexylresorcinol, Emblica Officinalis Fruit Extract, Hydrolyzed Soy Protein, Tetrahexyldecyl Ascorbate, Isoquercetin, Mandelic Acid, Pueraria Lobata Root Extract, Curcuma Longa Root Extract, Phytic Acid, Citric Acid, Tetrasodium EDTA, Sodium Citrate, Butylene Glycol, Xanthan Gum, Polysorbate 20, T-Butyl Alcohol, Sodium Hydroxide, Polysorbate 80, Denatonium Benzoate, Benzyl Alcohol, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinXanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan GumHydroxyethylcellulose is used to improve the texture of products. It is created from a chemical reaction involving ethylene oxide and alkali-cellulose. Cellulose is a sugar found in plant cell walls and help give plants structure.
This ingredient helps stabilize products by preventing ingredients from separating. It can also help thicken the texture of a product.
This ingredient can also be found in pill medicines to help our bodies digest other ingredients.
Learn more about HydroxyethylcelluloseIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Mad Hippie Vitamin C Serum 17 ingredients
Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum 38 ingredients
Reviews
Here's what our community thinks
Mad Hippie Vitamin C Serum 17 ingredients
As a redhead I’ve got some pretty reactive skin, but vitamin C is a must. I’ve tried vitamin C serums with regular ascorbic acid but they were too harsh and irritating, even using once a week. This serum contains a stabilized form of vitamin C that is so gentle I can use it daily without any problems. When I run out, I can immediately tell a difference! My skin loves this stuff. I hope they never Show more
This works really well for me. It feels like a bit sticky at first but it absorbs well. You only have to use a little bit otherwise it can be a bit drying; I have sensitive and eczema prone skin.
