SkinCeuticals A.G.E. Interrupter Advanced Versus Underated Azelaic Acid 9% GDL 5% Niacinamide 4% Cream
Updated on February 16, 2024
Overview
What they are
These products are both reef safe facial treatments. They have a total of 11 ingredients in common
Cool Features
They both contain niacinamide
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, parabens or sulfates
What's Inside
They both contain fragrances
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
SkinCeuticals A.G.E. Interrupter Advanced 42 ingredients
Underated Azelaic Acid 9% GDL 5% Niacinamide 4% Cream 32 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
SkinCeuticals A.G.E. Interrupter Advanced 42 ingredients
Underated Azelaic Acid 9% GDL 5% Niacinamide 4% Cream 32 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningHydroxypropyl Tetrahydropyrantriol
Skin ConditioningGlycerin
Humectant
Propylene Glycol
Humectant
Stearic Acid
Cleansing
Butyrospermum Parkii Butter
Skin Conditioning
Hydroxyethylpiperazine Ethane Sulfonic Acid
BufferingPalmitic Acid
Emollient
Pentylene Glycol
Skin ConditioningOleyl Alcohol
Emollient
Arachidyl Alcohol
EmollientMyristyl Myristate
Emollient
Panthenol
Skin Conditioning
Niacinamide
Smoothing
Dimethicone
Emollient
Isononyl Isononanoate
EmollientBis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone
Emollient
Glyceryl Stearate
Emollient
Candelilla Cera
Emollient
Behenyl Alcohol
Emollient
PEG-100 Stearate
Sodium Polyacrylate
AbsorbentPentaerythrityl Tetraisostearate
Emollient
4-T-Butylcyclohexanol
Masking
Arachidyl Glucoside
EmulsifyingCaprylyl Glycol
EmollientXanthan Gum
EmulsifyingChlorphenesin
Antimicrobial
Myristic Acid
Cleansing
Caprylic/Capric Triglyceride
MaskingGlycyrrhetinic Acid
Skin ConditioningParfum
Masking
Sorbitol
Humectant
Vaccinium Myrtillus Fruit Extract
Skin ConditioningPotassium Hydroxide
BufferingAdenosine
Skin Conditioning
Citric Acid
Buffering
Punica Granatum Fruit Extract
AntioxidantLimonene
Perfuming
Coumarin
Perfuming
Linalool
Perfuming
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
Water, Hydroxypropyl Tetrahydropyrantriol, Glycerin, Propylene Glycol, Stearic Acid, Butyrospermum Parkii Butter, Hydroxyethylpiperazine Ethane Sulfonic Acid, Palmitic Acid, Pentylene Glycol, Oleyl Alcohol, Arachidyl Alcohol, Myristyl Myristate, Panthenol, Niacinamide, Dimethicone, Isononyl Isononanoate, Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone, Glyceryl Stearate, Candelilla Cera, Behenyl Alcohol, PEG-100 Stearate, Sodium Polyacrylate, Pentaerythrityl Tetraisostearate, 4-T-Butylcyclohexanol, Arachidyl Glucoside, Caprylyl Glycol, Xanthan Gum, Chlorphenesin, Myristic Acid, Caprylic/Capric Triglyceride, Glycyrrhetinic Acid, Parfum, Sorbitol, Vaccinium Myrtillus Fruit Extract, Potassium Hydroxide, Adenosine, Citric Acid, Punica Granatum Fruit Extract, Limonene, Coumarin, Linalool, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Water
Skin ConditioningAzelaic Acid
Buffering
Propylene Glycol
Humectant
Gluconolactone
Skin Conditioning
Caprylic/Capric Triglyceride
MaskingC15-19 Alkane
SolventNiacinamide
Smoothing
Glyceryl Stearate
Emollient
PEG-100 Stearate
Arachidyl Alcohol
EmollientBehenyl Alcohol
Emollient
Arachidyl Glucoside
EmulsifyingCetyl Alcohol
Emollient
Stearic Acid
Cleansing
Polyacrylate-13
Polyisobutene
Polysorbate 20
Emulsifying
Butyrospermum Parkii Butter
Skin Conditioning
Alpha-Arbutin
Antioxidant
Azadirachta Indica Leaf Extract
Skin ConditioningCurcuma Longa Root Extract
Masking
Melaleuca Alternifolia Leaf Oil
Antioxidant
Salix Alba Bark Extract
Astringent
Cucumis Sativus Fruit Extract
EmollientCamellia Sinensis Leaf Extract
Antimicrobial
Rosmarinus Officinalis Leaf Extract
AntimicrobialPhenoxyethanol
Preservative
Ethylhexylglycerin
Skin ConditioningSodium Acrylates Copolymer
Lecithin
EmollientSodium Hydroxide
BufferingDisodium EDTA
Water, Azelaic Acid, Propylene Glycol, Gluconolactone, Caprylic/Capric Triglyceride, C15-19 Alkane, Niacinamide, Glyceryl Stearate, PEG-100 Stearate, Arachidyl Alcohol, Behenyl Alcohol, Arachidyl Glucoside, Cetyl Alcohol, Stearic Acid, Polyacrylate-13, Polyisobutene, Polysorbate 20, Butyrospermum Parkii Butter, Alpha-Arbutin, Azadirachta Indica Leaf Extract, Curcuma Longa Root Extract, Melaleuca Alternifolia Leaf Oil, Salix Alba Bark Extract, Cucumis Sativus Fruit Extract, Camellia Sinensis Leaf Extract, Rosmarinus Officinalis Leaf Extract, Phenoxyethanol, Ethylhexylglycerin, Sodium Acrylates Copolymer, Lecithin, Sodium Hydroxide, Disodium EDTA
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 WaterPropylene 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 GlycolStearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
As an emollient, stearic acid helps soften skin. It aids the skin's protective barrier by preventing water loss. It also provides a gentle cleansing effect without stripping away natural oils.
Stearic acid may also be used to enhance the texture of products. It can add volume and stabilize ingredients such as water and oil. This can help water and oil ingredients from separating.
Sources of stearic acid include animal or vegetable fats/oils such as coconut or shea. It can be naturally found in butter, cocoa butter, shea butter, vegetable fats, and animal tallow.
This ingredient may not be Malassezia folliculitis, or fungal-acne safe.
Learn more about Stearic AcidButyrospermum Parkii Butter is a plant lipid from the fruit of the Shea Tree. It is an effective skin hydrator and emollient.
Emollients help soothe and soften your skin. It does this by creating a protective film on your skin. This barrier helps trap moisture and keeps your skin hydrated. Emollients may be effective at treating dry or itchy skin.
Shea butter is rich in antioxidants. Antioxidants help fight free-radicals, or molecules that may harm the body. It is also full of fatty acids including stearic acid and linoleic acid. These acids help replenish the skin and keep skin moisturized.
While Shea Butter has an SPF rating of about 3-4, it is not a sunscreen replacement.
Shea butter may not be fungal acne safe. We recommend speaking with a professional if you have any concerns.
Learn more about Butyrospermum Parkii ButterArachidyl Alcohol is a fatty alcohol made from peanut oil. It is an emollient, emulsifier, and thickener.
You'll most likely find this ingredient as an emulsifier in water-based cosmetics.
Niacinamide has emerged as an all-star ingredient due to its many benefits.
It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.
Other benefits include smoothing wrinkles and minimizing redness.
The cherry on top? Niacinamide can also help build keratin, a protein that keeps skin firm.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.
Learn more about NiacinamideGlyceryl 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 StearateA type of fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as traditional alcohols.
Emollients help keep your skin soft and hydrated by creating a film that traps moisture in.
Behenyl Alcohol is usually derived from the fats in vegetable oils.
In 2000, Behenyl Alcohol was approved by the US as medicine to reduce the duration of cold sores.
Learn more about Behenyl AlcoholPeg-100 Stearate is an emollient and emulsifier. As an emollient, it helps keep skin soft by trapping moisture in. On the other hand, emulsifiers help prevent oil and water from separating in a product.
PEGS are a hydrophilic polyether compound . There are 100 ethylene oxide monomers in Peg-100 Stearate. Peg-100 Stearate is polyethylene glycol ester of stearic acid.
We don't have a description for Arachidyl Glucoside yet.
This ingredient is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
It helps thicken a product's formula and makes it easier to spread by dissolving clumping compounds.
Caprylic Triglyceride is made by combining glycerin with coconut oil, forming a clear liquid.
While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this.
Learn more about Caprylic/Capric TriglycerideIngredient Ratings
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When to use
SkinCeuticals A.G.E. Interrupter Advanced 42 ingredients
Underated Azelaic Acid 9% GDL 5% Niacinamide 4% Cream 32 ingredients
