Here's our complete breakdown comparing the ingredients, attributes, and more of Peter Thomas Roth Potent-C Power Serum versus Drunk Elephant C-Firma Vitamin C Day Serum .
Published on February 23, 2022
Overview
What they are
These products are both reef safe serums. They have a total of 11 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, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, parabens or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Price
Ingredient Info
Peter Thomas Roth Potent-C Power Serum 29 ingredients
Drunk Elephant C-Firma Vitamin C Day Serum 47 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
Alcohol Free
This product is free of harsh alcohols 🎉
Silicon Free
This product is free of silicons 🎉
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
Peter Thomas Roth Potent-C Power Serum 29 ingredients
Drunk Elephant C-Firma Vitamin C Day Serum 47 ingredients
Notable Ingredients
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Benefits
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Concerns
This product contains 1 ingredient that may have this attribute:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Benefits
This product contains 3 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 4 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
Peter Thomas Roth Potent-C Power Serum 29 ingredients
Drunk Elephant C-Firma Vitamin C Day Serum 47 ingredients
Water • Ascorbyl Tetraisopalmitate • Butylene Glycol • C9-12 Alkane • Caprylyl Methicone • Tocopheryl Acetate • C10-18 Triglycerides • Polyglyceryl-6 Distearate • Ferulic Acid • Squalane • Hydrogenated Lecithin • Propanediol • Sodium Hyaluronate • Zingiber Officinale Root Extract • Curcuma Longa Root Extract • Panax Ginseng Root Extract • Jojoba Esters • Leuconostoc/Radish Root Ferment Filtrate • Coco-Caprylate/Caprate • Glycerin • Cetyl Alcohol • Polyglyceryl-3 Beeswax • Xanthan Gum • Disodium EDTA • Mica • Ethylhexylglycerin • Potassium Sorbate • Sodium Benzoate • Phenoxyethanol
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 Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterPeter Thomas Roth Potent-C Power Serum contains this as ingredient number 1.
Drunk Elephant C-Firma Vitamin C Day Serum contains this as ingredient number 1.
Butylene 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.
Peter Thomas Roth Potent-C Power Serum contains this as ingredient number 3.
Drunk Elephant C-Firma Vitamin C Day Serum contains this as ingredient number 40.
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.
When used with Vitamin C, Ferulic Acid has shown to prevent Vitamin C from breaking down. In other words, it acts as a stabilizer.
Ferulic Acid is sometimes used to preserve food. Foods containing Ferulic Acid include: oats, rice, eggplant, citrus.
In medicine, Ferulic Acid is being studied for helping with diabetes, Alzheimer's, and cardiovascular diseases.
Learn more about Ferulic AcidPeter Thomas Roth Potent-C Power Serum contains this as ingredient number 9.
Drunk Elephant C-Firma Vitamin C Day Serum contains this as ingredient number 20.
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.
Propanediol is not likely to cause sensitivity and considered safe to use.
It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolPeter Thomas Roth Potent-C Power Serum contains this as ingredient number 12.
Drunk Elephant C-Firma Vitamin C Day Serum contains this as ingredient number 37.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronatePeter Thomas Roth Potent-C Power Serum contains this as ingredient number 13.
Drunk Elephant C-Firma Vitamin C Day Serum contains this as ingredient number 22.
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).
Leuconostoc/Radish Root Ferment Filtrate has antimicrobial properties and helps prevent the growth of bacteria in a product.
It is believed the preservation property comes from salicylic acid and ammonium salt, neither of which are involved in the fermentation process.
Learn more about Leuconostoc/Radish Root Ferment FiltratePeter Thomas Roth Potent-C Power Serum contains this as ingredient number 18.
Drunk Elephant C-Firma Vitamin C Day Serum contains this as ingredient number 27.
Glycerin 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 GlycerinPeter Thomas Roth Potent-C Power Serum contains this as ingredient number 20.
Drunk Elephant C-Firma Vitamin C Day Serum contains this as ingredient number 5.
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.
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 GumPeter Thomas Roth Potent-C Power Serum contains this as ingredient number 23.
Drunk Elephant C-Firma Vitamin C Day Serum contains this as ingredient number 39.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Peter Thomas Roth Potent-C Power Serum contains this as ingredient number 26.
Drunk Elephant C-Firma Vitamin C Day Serum contains this as ingredient number 47.
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
Potassium sorbate is potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
Potassium sorbate is often used with stronger preservatives.
Learn more about Potassium SorbatePeter Thomas Roth Potent-C Power Serum contains this as ingredient number 27.
Drunk Elephant C-Firma Vitamin C Day Serum contains this as ingredient number 45.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and 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.
Peter Thomas Roth Potent-C Power Serum contains this as ingredient number 29.
Drunk Elephant C-Firma Vitamin C Day Serum contains this as ingredient number 33.
Here's what our community thinks of the ingredients in these two products.
Peter Thomas Roth Potent-C Power Serum 29 ingredients
Drunk Elephant C-Firma Vitamin C Day Serum 47 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
Peter Thomas Roth Potent-C Power Serum 29 ingredients
Drunk Elephant C-Firma Vitamin C Day Serum 47 ingredients
Reviews
Here's what our community thinks
Peter Thomas Roth Potent-C Power Serum 29 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.
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