Olay Vitamin C + AHA24 Day Gel Face Cream Versus Dr. Dennis Gross Skincare C+ Collagen Deep Cream
Updated on June 12, 2025
Overview
What they are
These products are both reef safe . They have a total of 5 ingredients in common
Cool Features
They both contain AHA, niacinamide, peptides and Vitamin C
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain common allergens, fragrances and silicones
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
Olay Vitamin C + AHA24 Day Gel Face Cream 29 ingredients
Dr. Dennis Gross Skincare C+ Collagen Deep Cream 63 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
Olay Vitamin C + AHA24 Day Gel Face Cream 29 ingredients
Dr. Dennis Gross Skincare C+ Collagen Deep Cream 63 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Isohexadecane
EmollientNiacinamide
Smoothing
Dimethicone
Emollient
Lactic Acid
Buffering
Isopropyl Isostearate
Emollient
Sodium Polyacryloyldimethyl Taurate
Emulsion StabilisingStearyl Alcohol
Emollient
Panthenol
Skin Conditioning
3-O-Ethyl Ascorbic Acid
Skin Conditioning
Palmitoyl Pentapeptide-4
Skin Conditioning
Trehalose
Humectant
Dimethiconol
Emollient
Cetearyl Alcohol
Emollient
Cetearyl Glucoside
EmulsifyingStearic Acid
Cleansing
Palmitic Acid
Emollient
Cetyl Alcohol
Emollient
Behenyl Alcohol
Emollient
Arachidyl Alcohol
EmollientSodium Lactate
BufferingPEG-100 Stearate
Sodium Benzoate
Masking
Parfum
Masking
Limonene
Perfuming
Benzyl Alcohol
Perfuming
Linalool
Perfuming
Citronellol
Perfuming
Water, Glycerin, Isohexadecane, Niacinamide, Dimethicone, Lactic Acid, Isopropyl Isostearate, Sodium Polyacryloyldimethyl Taurate, Stearyl Alcohol, Panthenol, 3-O-Ethyl Ascorbic Acid, Palmitoyl Pentapeptide-4, Trehalose, Dimethiconol, Cetearyl Alcohol, Cetearyl Glucoside, Stearic Acid, Palmitic Acid, Cetyl Alcohol, Behenyl Alcohol, Arachidyl Alcohol, Sodium Lactate, PEG-100 Stearate, Sodium Benzoate, Parfum, Limonene, Benzyl Alcohol, Linalool, Citronellol
Water
Skin ConditioningGlycerin
Humectant
Butylene Glycol
Humectant
Camellia Japonica Seed Oil
Emollient
Oryza Sativa Bran Oil
Emollient
Dimethicone
Emollient
Sucrose
Humectant
Pentylene Glycol
Skin ConditioningHelianthus Annuus Seed Oil
Emollient
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion Stabilising3-O-Ethyl Ascorbic Acid
Skin Conditioning
Collagen Amino Acids
Moisturising
Niacinamide
Smoothing
Carnitine Hcl
HumectantHydroxyproline
Skin ConditioningGlycine
Buffering
Carnitine
CleansingSqualane
Emollient
Dipotassium Glycyrrhizate
Humectant
Tocopherol
Antioxidant
Saccharide Isomerate
Humectant
Acetyl Hexapeptide-8
Humectant
Superoxide Dismutase
Antioxidant
Leuconostoc/Radish Root Ferment Filtrate
Antimicrobial
Ubiquinone
Antioxidant
Aloe Barbadensis Leaf Juice
Skin Conditioning
Lactobacillus Ferment
Skin ConditioningUndaria Pinnatifida Extract
Skin ConditioningGlycolic Acid
Buffering
Lecithin
Emollient
Biotin
AntiseborrhoeicMaltodextrin
Absorbent
Caprylyl Glycol
Emollient
1,2-Hexanediol
Skin Conditioning
Carbomer
Emulsion StabilisingHydroxyethylcellulose
Emulsion StabilisingAmmonium Hydroxide
BufferingPolysorbate 60
Emulsifying
Potassium Hydroxide
BufferingSodium Phytate
Sodium Citrate
BufferingCitric Acid
Buffering
Camellia Sinensis Leaf Extract
Antimicrobial
Cucumis Sativus Fruit Extract
Emollient
Elettaria Cardamomum Seed Extract
Perfuming
Citrus Aurantium Amara Flower Extract
RefreshingCupressus Sempervirens Leaf/Stem Extract
Skin ConditioningFucus Vesiculosus Extract
Emollient
Pyrus Malus Fruit Extract
Skin Conditioning
Rubus Idaeus Extract
Skin ProtectingCananga Odorata Flower Extract
Perfuming
Coffea Arabica Seed Extract
Masking
Rose Extract
Skin ConditioningCucumis Melo Fruit Extract
Skin ConditioningJasminum Sambac Flower Extract
Masking
Rosmarinus Officinalis Leaf Extract
AntimicrobialCitrus Aurantium Bergamia Fruit Extract
Skin ConditioningSalvia Officinalis Leaf Extract
CleansingLavandula Angustifolia Flower/Leaf/Stem Extract
Masking
Santalum Album Wood Extract
Perfuming
Triethyl Citrate
Masking
Phenoxyethanol
Preservative
Potassium Sorbate
Preservative
Water, Glycerin, Butylene Glycol, Camellia Japonica Seed Oil, Oryza Sativa Bran Oil, Dimethicone, Sucrose, Pentylene Glycol, Helianthus Annuus Seed Oil, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, 3-O-Ethyl Ascorbic Acid, Collagen Amino Acids, Niacinamide, Carnitine Hcl, Hydroxyproline, Glycine, Carnitine, Squalane, Dipotassium Glycyrrhizate, Tocopherol, Saccharide Isomerate, Acetyl Hexapeptide-8, Superoxide Dismutase, Leuconostoc/Radish Root Ferment Filtrate, Ubiquinone, Aloe Barbadensis Leaf Juice, Lactobacillus Ferment, Undaria Pinnatifida Extract, Glycolic Acid, Lecithin, Biotin, Maltodextrin, Caprylyl Glycol, 1,2-Hexanediol, Carbomer, Hydroxyethylcellulose, Ammonium Hydroxide, Polysorbate 60, Potassium Hydroxide, Sodium Phytate, Sodium Citrate, Citric Acid, Camellia Sinensis Leaf Extract, Cucumis Sativus Fruit Extract, Elettaria Cardamomum Seed Extract, Citrus Aurantium Amara Flower Extract, Cupressus Sempervirens Leaf/Stem Extract, Fucus Vesiculosus Extract, Pyrus Malus Fruit Extract, Rubus Idaeus Extract, Cananga Odorata Flower Extract, Coffea Arabica Seed Extract, Rose Extract, Cucumis Melo Fruit Extract, Jasminum Sambac Flower Extract, Rosmarinus Officinalis Leaf Extract, Citrus Aurantium Bergamia Fruit Extract, Salvia Officinalis Leaf Extract, Lavandula Angustifolia Flower/Leaf/Stem Extract, Santalum Album Wood Extract, Triethyl Citrate, Phenoxyethanol, 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.
You might know this ingredient as Ethyl Ascorbic Acid, a more stable version of ascorbic acid.
Like other types of vitamin C, this ingredient has many benefits including reducing wrinkles, skin soothing, dark spot fading, and fighting against free radicals.
3-O-Ethyl Ascorbic Acid interferes with the process of skin darkening, helping to reduce hyperpigmentation. It also encourages the skin to produce more collagen.
Once applied, 3-O-Ethyl Ascorbic Acid is converted to Vitamin C deeper in the skin's layers. This process is slow but makes this ingredient more tolerable for skin.
The optimum pH range for this ingredient is 4 - 5.5
Learn more about 3-O-Ethyl Ascorbic AcidDimethicone is a type of synthetic silicone created from natural materials such as quartz.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Learn more about DimethiconeGlycerin 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 GlycerinNiacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.
And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.
You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.
In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.
If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes.
In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution).
Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin.
Another name for vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.
The type of niacinamide used in skincare is synthetically created.
Learn more about NiacinamideWater. 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 WaterIngredient Ratings
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