Updated on June 28, 2024
Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 8 ingredients in common
Cool Features
They both contain hyaluronic acid, Vitamin C and Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, parabens or sulfates
What's Inside
They both contain oils
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
ISDIN Flavo-C Ultraglican Ampoules 20 ingredients
Drunk Elephant C-Firma Vitamin C Day Serum 47 ingredients
At a glance
Click on any of the items below to learn more
ISDIN Flavo-C Ultraglican Ampoules 20 ingredients
Drunk Elephant C-Firma Vitamin C Day Serum 47 ingredients
Notable Ingredients
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Concerns
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Notable Ingredients
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Benefits
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Ingredients Side-by-side
Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.
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.
Antioxidant 6 Benefits
Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Antioxidant 4 Benefits May cause irritation
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Not safe for Fungal Acne
Peg-40 Hydrogenated Castor Oil is derived from castor oil and polyethylene glycol (PEG). It is used as a emollient and emulsifier.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
2 Concerns
Hydrogenated Soybean Oil is an oil and isn't fungal acne safe. It can be bad for acne prone skin.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
Hydrolyzed Hyaluronic Acid is a form of hyaluronic acid. It is created by the hydrolysis of hyaluronic acid with a high molecular weight. Once created, Hydrolyzed Hyaluronic Acid has a low molecular weight.
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
We don't have a description for Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
Propylene Glycol, Water, Ascorbic Acid, Bis-Hydroxyethoxypropyl Dimethicone, Glycerin, Ppg-26-Buteth-26, Tocopherol, Peg-40 Hydrogenated Castor Oil, Parfum, Sodium Benzoate, Hydrogenated Soybean Oil, Butylene Glycol, Potassium Sorbate, Hydrolyzed Hyaluronic Acid, Sodium Hydroxide, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Phenoxyethanol, Soluble Proteoglycan, Magnesium Chloride, Ergothioneine
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.
Dimethyl Isosorbide is a solvent and helps deliver actives into your skin. It is created from sorbitol.
Antioxidant 6 Benefits
Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.
Laureth-23 is created by reacting ethylene oxide with Lauryl Alcohol.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Not safe for Fungal Acne
Sclerocarya Birrea Seed Oil is the oil expressed from the seeds of the Marula plant. In South Africa, Marula is called "an elephant's favorite treat".
Glycyrrhiza Glabra Root Extract is an extract of the roots of Licorice. It has been found to have several benefits such as skin hydrating, conditioning, and soothing.
5 Benefits
Camellia Sinensis Leaf Extract is derived from the leaves of the tea plant. Black tea, green tea, and oolong tea are all harvested from this plant.
Antioxidant 4 Benefits May cause irritation
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Sodium Hyaluronate Crosspolymer is a type of hyaluronic acid. In fact, it is modified version of hyaluronic acid.
Helps with Anti-Aging
Ferulic Acid is a plant based antioxidant. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells. Ferulic Acid can help reduce the formation of fine lines and hyperpigmentation.
Acetyl Glucosamine is an antioxidant and humectant. It is a form of Vitamin C.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Glycine is an amino acid that helps build proteins. It is already present in our skin as our bodies produce them naturally.
Leuconostoc/Radish Root Ferment Filtrate is a natural preservative. It comes from fermenting radish roots with a bacteria called leuconostoc. Leuconostoc comes from lactic acid. This bacteria is used to make the traditional Korean side-dish, kimchi. It is also used to make sourdough bread (both incredibly yummy foods).
Sucrose is a natural sugar found in fruits, vegetables, and nuts. It is the main constituent of white sugar.
Maltodextrin is a polysaccharide. It is derived from starch such as rice, corn, wheat, or potato starch.
Chondrus Crispus Extract comes from a red algae native to the northern Atlantic coasts of Europe and North America.
This is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel.
Isohexadecane is added to enhance texture, emulsify, and to help cleanse. It is an isoparrafin. It is a component of petrolatum.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Sorbitan Isostearate is an emulsifer and cleaning agent. It is created from isostearic acid and sorbitol.
Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.
Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
Xanthan 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.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol.
Polysorbate 60 is used to help stabilize products. It is a surfactant and emulsifier. These properties help keep ingredients together in a product. Surfactants help reduce surface tension between ingredients with different states, such as liquids and solids. Emulsifiers help prevent oils and waters from separating.
This ingredient is a preservative with antimicrobial properties. It is the sodium salt of dehydroacetic acid.
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
May worsen Eczema
Sorbic Acid is a preservative. It is the most commonly used food preservative in the world.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
Water, Dimethyl Isosorbide, Ascorbic Acid, Laureth-23, Glycerin, Lactobacillus/Pumpkin Ferment Extract, Sclerocarya Birrea Seed Oil, Dipotassium Glycyrrhizate, Glycyrrhiza Glabra Root Extract, Vitis Vinifera Juice Extract, Phyllanthus Emblica Fruit Extract, Camellia Sinensis Leaf Extract, Tocopherol, Lactobacillus/Punica Granatum Fruit Ferment Extract, Sodium Hyaluronate Crosspolymer, Hydrolyzed Quinoa, Phytosterols, Glutamylamidoethyl Imidazole, Hydrolyzed Wheat Protein, Ferulic Acid, Acetyl Glucosamine, Sodium Hyaluronate, Tetrahydrobisdemethoxydiferuloylmethane, Tetrahydrodemethoxydiferuloylmethane, Tetrahydrodiferuloylmethane, Glycine, Leuconostoc/Radish Root Ferment Filtrate, Sucrose, Maltodextrin, Chondrus Crispus Extract, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Isohexadecane, Phenoxyethanol, Caprylhydroxamic Acid, Caprylyl Glycol, Sorbitan Isostearate, Propanediol, Pentylene Glycol, Xanthan Gum, Butylene Glycol, Sodium Hydroxide, Chlorphenesin, Polysorbate 60, Sodium Dehydroacetate, Potassium Sorbate, Sorbic Acid, Ethylhexylglycerin
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 AcidGlycerin 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 GlycerinTocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
You'll often find this ingredient used with other preservatives.
Learn more about Potassium SorbateSodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxidePhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Ingredient Ratings
Here's what our community thinks of the ingredients in these two products.
When to use
ISDIN Flavo-C Ultraglican Ampoules 20 ingredients
Drunk Elephant C-Firma Vitamin C Day Serum 47 ingredients
Reviews
Here's what our community thinks
ISDIN Flavo-C Ultraglican Ampoules 20 ingredients
Drunk Elephant C-Firma Vitamin C Day Serum 47 ingredients
traceyy
WNRP -- this vitamin C was underwhelming. I could not bring myself to finish the entire bottle as it felt irritating on my skin compared to other...
WNRP -- this vitamin C was underwhelming. I could not bring myself to finish the entire bottle as it felt irritating on my skin compared to other vitamin C serums.
