Obagi Retinol 1.0 Versus Altreno Tretinoin 0.05%
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningCaprylic/Capric Triglyceride
Masking
Glyceryl Stearate
Emollient
Cyclopentasiloxane
Emollient
Butylene Glycol
Humectant
Stearic Acid
Cleansing
Butyrospermum Parkii Butter
Skin Conditioning
Polysorbate 60
Emulsifying
Stearyl Alcohol
Emollient
Glycerin
Humectant
Allyl Methacrylates Crosspolymer
Emulsion StabilisingRetinol
Skin Conditioning
Polysorbate 20
Emulsifying
Dimethicone
Emollient
Simmondsia Chinensis Seed Oil
Emollient
Chamomilla Recutita Flower Extract
Masking
Hypericum Perforatum Flower Extract
Skin ConditioningMalva Sylvestris Flower Extract
Skin ConditioningSalvia Officinalis Leaf Extract
CleansingSambucus Nigra Flower Extract
RefreshingCyclohexasiloxane
Emollient
Sorbitol
Humectant
Tocopheryl Acetate
Antioxidant
Ascorbic Acid
Antioxidant
Ubiquinone
Antioxidant
Sodium Hyaluronate
Humectant
Propylene Glycol
Humectant
BHT
Antioxidant
Bisabolol
Antioxidant
Dimethicone/Vinyl Dimethicone Crosspolymer
Skin Conditioning
Dipotassium Glycyrrhizate
Humectant
Disodium EDTA
Triethanolamine
BufferingCarbomer
Emulsion StabilisingGlyceryl Acrylate/Acrylic Acid Copolymer
HumectantCaprylyl Glycol
Emollient
Ethylhexylglycerin
Skin ConditioningHexylene Glycol
EmulsifyingPhenoxyethanol
Preservative
Water, Caprylic/Capric Triglyceride, Glyceryl Stearate, Cyclopentasiloxane, Butylene Glycol, Stearic Acid, Butyrospermum Parkii Butter, Polysorbate 60, Stearyl Alcohol, Glycerin, Allyl Methacrylates Crosspolymer, Retinol, Polysorbate 20, Dimethicone, Simmondsia Chinensis Seed Oil, Chamomilla Recutita Flower Extract, Hypericum Perforatum Flower Extract, Malva Sylvestris Flower Extract, Salvia Officinalis Leaf Extract, Sambucus Nigra Flower Extract, Cyclohexasiloxane, Sorbitol, Tocopheryl Acetate, Ascorbic Acid, Ubiquinone, Sodium Hyaluronate, Propylene Glycol, BHT, Bisabolol, Dimethicone/Vinyl Dimethicone Crosspolymer, Dipotassium Glycyrrhizate, Disodium EDTA, Triethanolamine, Carbomer, Glyceryl Acrylate/Acrylic Acid Copolymer, Caprylyl Glycol, Ethylhexylglycerin, Hexylene Glycol, Phenoxyethanol
Reviews
Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
BHT 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 BHTGlycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinSodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
Interestingly, the size of the molecule affects its behavior:
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
You'll typically see concentrations between 0.1-2% for this ingredient.
Learn more about Sodium HyaluronateTriethanolamine (TEA) is an emulsifier and pH adjuster. It is created using ethylene oxide and ammonia. This gives Triethanolamine a nitrogen core and a similar scent to ammonia.
As an emulsifier, it prevents ingredients from separating and enhances texture by adding volume to a product.
PH adjusters are common in cosmetic products. The pH of a product can affect the effectiveness of other ingredients. A product with a high pH may also irritate the skin.
If you are looking for the tea leaf ingredient, click here.
Learn more about TriethanolamineWater. 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. Remember to stay hydrated!
Learn more about Water
