Annani Serum Z Retinalem 0.5% Versus Auteur Definitive Collagen Activator Serum
Updated on February 12, 2025
Overview
What they are
These products are both vegan and reef safe serums. They have a total of 6 ingredients in common
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin and scar healing
Free From
They both do not contain any harsh alcohols, common allergens, 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
Annani Serum Z Retinalem 0.5% 21 ingredients
Auteur Definitive Collagen Activator Serum 16 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Annani Serum Z Retinalem 0.5% 21 ingredients
Auteur Definitive Collagen Activator Serum 16 ingredients
Key Ingredients
Benefits
Concerns
Benefits
Ingredients Side-by-side
Water
Skin ConditioningCaprylic/Capric Triglyceride
Masking
Butylene Glycol
Humectant
Tripelargonin
EmollientPropanediol
Solvent
Polyglyceryl-2 Stearate
Emulsifying
Sodium Lactate
BufferingGlyceryl Stearate
Emollient
Stearyl Alcohol
Emollient
Glycerin
Humectant
Caesalpinia Spinosa Gum
Skin ConditioningCentella Asiatica Extract
Cleansing
Ferulic Acid
Antimicrobial
Retinal
Skin Conditioning
Triethyl Citrate
Masking
Caprylyl Glycol
EmollientBenzoic Acid
Masking
Ascorbic Acid
Antioxidant
Phospholipids
Skin Conditioning
Sodium Benzoate
Masking
Potassium Sorbate
Preservative
Water, Caprylic/Capric Triglyceride, Butylene Glycol, Tripelargonin, Propanediol, Polyglyceryl-2 Stearate, Sodium Lactate, Glyceryl Stearate, Stearyl Alcohol, Glycerin, Caesalpinia Spinosa Gum, Centella Asiatica Extract, Ferulic Acid, Retinal, Triethyl Citrate, Caprylyl Glycol, Benzoic Acid, Ascorbic Acid, Phospholipids, Sodium Benzoate, Potassium Sorbate
Water
Skin ConditioningPolyglyceryl-2 Stearate
Emulsifying
Glyceryl Stearate
Emollient
Stearyl Alcohol
Emollient
Octyldodecyl Oleate
Emollient
Octyldodecyl Stearoyl Stearate
Emollient
Polyhydroxystearic Acid
Emulsifying
Octyldodecanol
EmollientPropanediol
Solvent
Psidium Guajava Leaf Extract
AstringentSaccharomyces Lysate Extract
Humectant
Glycerin
Humectant
Palmitoyl Tripeptide-5
Skin Conditioning
Dipeptide Diaminobutyroyl Benzylamide Diacetate
Skin Conditioning
Gigartina Stellata Extract
Skin ProtectingPhenoxyethanol
Preservative
Water, Polyglyceryl-2 Stearate, Glyceryl Stearate, Stearyl Alcohol, Octyldodecyl Oleate, Octyldodecyl Stearoyl Stearate, Polyhydroxystearic Acid, Octyldodecanol, Propanediol, Psidium Guajava Leaf Extract, Saccharomyces Lysate Extract, Glycerin, Palmitoyl Tripeptide-5, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Gigartina Stellata Extract, Phenoxyethanol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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 GlycerinGlyceryl Stearate is a mix of glycerin and stearic acid.
It is used to stabilize the mixing of water and oil ingredients. By preventing these ingredients from separating, it can help elongate shelf life. It can also help thicken the product's texture.
As an emollient, it helps soften skin and supports barrier-replenishing ingredients.
In cosmetics, Glyceryl Stearate is often made from vegetable oils or synthetically produced.
This ingredient may not be fungal-acne safe
Fun fact: The human body also creates Glyceryl Stearate naturally.
Learn more about Glyceryl StearatePolyglyceryl-2 Stearate isn't fungal acne safe.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
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 PropanediolStearyl Alcohol is a type of fatty alcohol from stearic acid. It is a white, waxy compound used to emulsify ingredients.
Fatty Alcohols are most often used as an emollient or to thicken a product. Emollients help soothe and hydrate the skin by trapping moisture.
They are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as solvent alcohols. FDA allows products labeled "alcohol-free" to have fatty alcohols.
Learn more about Stearyl AlcoholWater. 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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