Updated on November 01, 2024
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 6 ingredients in common
Cool Features
They both contain retinoid and Vitamin E
Suited For
They're both likely to be good for fighting acne, anti aging, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any oils, parabens, silicones 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
Principia Serum Facial Rn-0,3 17 ingredients
Creamy Retinol 33 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Principia Serum Facial Rn-0,3 17 ingredients
Creamy Retinol 33 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPolyacrylate Crosspolymer-6
Emulsion StabilisingSodium Gluconate
Skin ConditioningPropanediol
SolventC15-19 Alkane
SolventArachidyl Alcohol
EmollientBehenyl Alcohol
Emollient
Arachidyl Glucoside
EmulsifyingTocopheryl Acetate
Antioxidant
Retinol
Skin Conditioning
Polysorbate 20
Emulsifying
BHT
Antioxidant
BHA
Antioxidant
Sodium Diethylenetriamine Pentamethylene Phosphonate
Sodium Gluceptate
Phenoxyethanol
Preservative
Caprylyl Glycol
EmollientWater
Skin ConditioningRetinol
Skin Conditioning
Alpha-Arbutin
Antioxidant
Butylene Glycol
Humectant
Ascorbyl Palmitate
Antioxidant
Sodium Hyaluronate
Humectant
Sodium Acrylates Copolymer
Xanthan Gum
EmulsifyingGlycerin
Humectant
Linoleic Acid
Cleansing
Lecithin
EmollientLinolenic Acid
Cleansing
Arachidonic Acid
Emollient
Azelamidopropyl Dimethyl Amine
AntimicrobialPalmitoyl Tripeptide-1
Skin Conditioning
Palmitoyl Hexapeptide-12
Skin Conditioning
Hydroxyethylcellulose
Emulsion StabilisingPhloretin
Antioxidant
Tocopherol
Antioxidant
Ferulic Acid
Antimicrobial
BHA
Antioxidant
BHT
Antioxidant
Ethoxydiglycol
HumectantDisodium EDTA
Bisabolol
Masking
Polysorbate 80
Emulsifying
Dehydroacetic Acid
Preservative
Benzoic Acid
Masking
Polysorbate 20
Emulsifying
Benzyl Alcohol
Perfuming
Phenoxyethanol
Preservative
Poloxamer 407
EmulsifyingEthylhexylglycerin
Skin ConditioningWater, Retinol, Alpha-Arbutin, Butylene Glycol, Ascorbyl Palmitate, Sodium Hyaluronate, Sodium Acrylates Copolymer, Xanthan Gum, Glycerin, Linoleic Acid, Lecithin, Linolenic Acid, Arachidonic Acid, Azelamidopropyl Dimethyl Amine, Palmitoyl Tripeptide-1, Palmitoyl Hexapeptide-12, Hydroxyethylcellulose, Phloretin, Tocopherol, Ferulic Acid, BHA, BHT, Ethoxydiglycol, Disodium EDTA, Bisabolol, Polysorbate 80, Dehydroacetic Acid, Benzoic Acid, Polysorbate 20, Benzyl Alcohol, Phenoxyethanol, Poloxamer 407, 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 WaterRetinol is a gold-standard ingredient for anti-aging. It is a form of Vitamin A and belongs to the class of retinoids that also includes tretinoin.
Why is retinol famous?
It has the most scientific studies backing up its skin benefits out of all the non-prescription ingredients.
Retinol is proven to:
This is why retinol is effective at removing wrinkles, fading dark spots, treating acne, and reducing the appearance of pores.
Studies show retinol is less effective when exposed to UV. Be sure to look for appropriate packaging to keep your retinol potent (similar to Vitamin C).
Using retinol or any retinoids will increase sun-sensitivity in the first few months. Though studies show retinoids increase your skin's natural SPF with continuous use, it is best to always wear sunscreen and sun-protection.
We recommend speaking with a medical professional about using this ingredient during pregnancy.
Retinol may cause irritation in some people, so be sure to patch test. Experts recommend 'ramping up' retinol use: start using this ingredient once a week and work up to using it daily.
Read about Tretinoin
Learn more about RetinolPolysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.
As a surfactant, it helps collect dirt and oils for washing. Emulsifiers prevent oils and water from separating.
Polysorbate 20 also adds scent to a product. Since it is made using sorbitol, it has a sweet scent. Sorbitol can also be found in fruits such as apples and peaches.
The lauric acid used to create Polysorbate 20 is often derived from coconuts.
Polysorbate 20 may not be fungal acne safe.
Learn more about Polysorbate 20BHT is a synthetic antioxidant and preservative.
As an antioxidant, it helps your body fight off free-radicals. Free-radicals are molecules that may damage your skin cells.
As a preservative, it is used to stabilize products and prevent them from degrading. Specifically, BHT prevents degradation from oxidation.
The concerns related to BHT come from oral studies; this ingredient is currently allowed for use by both the FDA and EU.
However, it was recently restricted for use in the UK as of April 2024.
Learn more about BHTThis BHA stands for butylated hydroxyanisole. If you are looking for the beta-hydroxy acid, aka as Salicylic Acid, click here.
In cosmetics, butylated hydroxyanisole is used as a perservative. It also has antioxidant properties. The concentrations usually used in skincare are low and do not penetrate through skin.
It is only considered a carcinogen when ingested.
Butylated Hydroxyanisole is a synthetic and waxy petrochemical. It is used as a preservative in foods and cosmetics.
Learn more about BHAPhenoxyethanol 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 products.
When to use
Principia Serum Facial Rn-0,3 17 ingredients
Creamy Retinol 33 ingredients
