REVOX B77 Just Vitamin C 20% Versus La Roche-Posay 10% Pure Vitamin C Serum
Updated on March 21, 2024
Overview
What they are
These products are both reef safe serums. They have a total of 6 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, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any common allergens, oils, parabens or sulfates
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
REVOX B77 Just Vitamin C 20% 10 ingredients
La Roche-Posay 10% Pure Vitamin C Serum 29 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
REVOX B77 Just Vitamin C 20% 10 ingredients
La Roche-Posay 10% Pure Vitamin C Serum 29 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningAscorbic Acid
Antioxidant
Cyclohexasiloxane
Emollient
Glycerin
Humectant
Alcohol Denat.
Antimicrobial
Potassium Hydroxide
BufferingPolymethylsilsesquioxane
Polysilicone-11
Dimethicone
Emollient
Propylene Glycol
Humectant
Pentaerythrityl Tetraethylhexanoate
EmollientC13-14 Isoparaffin
Emollient
Tocopherol
Antioxidant
Sodium Hyaluronate
Humectant
Hydrolyzed Hyaluronic Acid
Humectant
Adenosine
Skin Conditioning
Acetyl Dipeptide-1 Cetyl Ester
Skin Conditioning
PEG-20 Methyl Glucose Sesquistearate
Emulsifying
Poloxamer 338
EmulsifyingSalicylic Acid
Masking
Polyacrylamide
Toluene Sulfonic Acid
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingXanthan Gum
EmulsifyingCaprylyl Glycol
EmollientDisodium EDTA
BHT
Antioxidant
Laureth-7
EmulsifyingParfum
Masking
Water, Ascorbic Acid, Cyclohexasiloxane, Glycerin, Alcohol Denat., Potassium Hydroxide, Polymethylsilsesquioxane, Polysilicone-11, Dimethicone, Propylene Glycol, Pentaerythrityl Tetraethylhexanoate, C13-14 Isoparaffin, Tocopherol, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Adenosine, Acetyl Dipeptide-1 Cetyl Ester, PEG-20 Methyl Glucose Sesquistearate, Poloxamer 338, Salicylic Acid, Polyacrylamide, Toluene Sulfonic Acid, Ammonium Polyacryloyldimethyl Taurate, Xanthan Gum, Caprylyl Glycol, Disodium EDTA, BHT, Laureth-7, Parfum
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 WaterAscorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.
Not only is vitamin C great for your overall health and immune system, it also has plenty of benefits on your skin.
Vitamin C is best used for brightening skin. It improves dark spots, acne scars, and hyperpigmentation. This is because it blocks the process of skin darkening when exposed to UV.
Remember: Vitamin C should not replace sunscreen!
Your skin uses vitamin C to build collagen. Collagen is one key component in having a strong skin barrier and plump skin. Vitamin C also plays a role in regulating collagen, thus making it effective in improving wrinkles and fine lines.
Ascorbic acid shows potent antioxidant activity. As an antioxidant, it helps fight free-radicals. Free-radicals are molecules that may damage your skin cells. These antioxidants also protect skin against UV damage.
The best formulations include Vitamin E and/or ferulic acid. These two ingredients help stabilize and provide a boost in the benefits of ascorbic acid. This is because ascorbic acid becomes unstable when exposed to UV and air. In fact, you can tell your ascorbic acid has oxidized when it turns an orange-yellow color.
Ascorbic acid is generally compatible with other ingredients. However, using ascorbic acid with other active ingredients might cause irritation. Two ingredients: copper ions and benzoyl peroxide, will inactivate ascorbic acid completely.
Read more about other types of Vitamin C:
Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.
Learn more about Ascorbic AcidPotassium hydroxide is commonly known as caustic potash. It is used to fix the pH of a product or as a cleaning agent in soap. In cleansers, it is used for the saponification of oils.
Sapnification is the process of creating fatty acid metal salts from triglycerides and a strong base. During this process, Potassium Hydroxide is used up and is not present in the final product.
Using high concentrations of Potassium Hydroxide have shown to irritate the skin.
Learn more about Potassium HydroxidePropylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.
Another role of this ingredient is preventing a product from melting or freezing. Propylene glycol also adds antimicrobrial properties to a product, elongating product lifespan.
This ingredient is considered an organic alcohol and commonly added into both cosmetics and foods.
Those with sensitive skin or conditions may develop a rash when using this ingredient.
Learn more about Propylene GlycolXanthan 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 GumDisodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTAIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
REVOX B77 Just Vitamin C 20% 10 ingredients
La Roche-Posay 10% Pure Vitamin C Serum 29 ingredients
Reviews
Here's what our community thinks
La Roche-Posay 10% Pure Vitamin C Serum 29 ingredients
So far so good.
I have sensitive skin and this doesn't sting at all.
This was my first vitamin C serum
I started using this because I was curious about Vitamin C and wanted to experience its benefits. This is a really good and gentle Vitamin C serum for sensitive skin. Mine got used to it and now tolerates stronger products.
