Updated on August 14, 2023
Overview
Cool Features
They both contain hyaluronic acid and retinoid
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin and brightening skin
Free From
They both do not contain any silicones or sulfates
What's Inside
They both contain common allergens and 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
Medik8 Crystal Retinal 6 41 ingredients
Obagi Tretinoin 0.05% Gel 16 ingredients
At a glance
Click on any of the items below to learn more
Medik8 Crystal Retinal 6 41 ingredients
Obagi Tretinoin 0.05% Gel 16 ingredients
Notable Ingredients
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Benefits
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Concerns
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Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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Concerns
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Ingredients Side-by-side
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.
Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Cetearyl Olivate is an emulsifier and texture enhancer. It is derived from the fatty acids of olive oil and Cetearyl alcohol, and is biodegradable.
This long ingredient is a copolymer of sodium acrylate and sodium acryloyldimethyl taurate monomers.
3 Concerns
Cetearyl alcohol is a mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is mainly used as an emulsifier. Emulsifiers help prevent the separation of oils and products. Due to its composition, it can also be used to thicken a product or help create foam.
Antioxidant Helps brighten skin
Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.
Squalane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.
This is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel.
Hydroxyacetophenone is antioxidant and helps with skin conditioning.
5 Benefits
You might know this ingredient as Ethyl Ascorbic Acid, a more stable version of ascorbic acid.
Phenoxyethanol 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.
This ingredient is a semi-synthetic polymer created from cellulose. In case you need a refresher, cellulose is the main component of plant cell walls.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Antioxidant 5 Benefits
Tetrahexyldecyl Ascorbate is a form of Vitamin C.
Not safe for Fungal Acne
Rubus Chamaemorus Seed Oil is an oil and isn't fungal acne safe.
Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
Daucus Carota Sativa Seed Oil is the oil obtained from the seed of the edible carrot. The oil is created by steaming and distilling the seeds of the plant.
7 Benefits 3 Concerns
Retinal is a form of retinoid. Retinoids are the gold-standard class of anti-aging ingredients.
Alumina is another name for the compound aluminum oxide. It is used as a thickener, absorbent, and abrasive.
Isostearic acid is a saturated fatty acid. Its structure makes it a great surfactant.
Lecithin is a term for a group of substances found in plants, animals, and humans. They are made up of mixture of fatty acids. These fatty acids usually are a mixture of phosphoric acid's choline ester connected to stearic, oleic, and palmitic acids. Most lecithins are created from plant ingredients scuh as sunflower.
This ingredient is an emulsifier. It is created from Polyglycerin-3 and Ricinoleic Acid.
This Honeysuckle flower extract comes from the Italian honeysuckle. It is an antioxidant, antimicrobial, and fragrance.
Polyhydroxystearic Acid is a soft wax made from castor oil.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
Polysorbate 60 is used to help stabilize products. It is a surfactant and emulsifier. These properties help keep ingredients together in a product. Surfactants help reduce surface tension between ingredients with different states, such as liquids and solids. Emulsifiers help prevent oils and waters from separating.
Sorbitan Isostearate is an emulsifer and cleaning agent. It is created from isostearic acid and sorbitol.
BHT is a synthetic antioxidant. As an antioxidant, it helps your body fight off free-radicals. Free-radicals are molecules that may damage your skin cells.
Vanilla Planifolia Fruit Extract comes from the vanilla orchid native to central America. It is a skin-soothing ingredient.
EU Allergen
Coumarins are a group of substances found naturally in plants. There are over 1300 types of coumarins identified. It has a natural vanilla scent.
Non-Reef-Safe
Titanium dioxide is known for its UVA and UVB protection properties. It is non-comedogenic and non-irritating. Titanium Dioxide is a physical sunscreen. Physical sunscreens reflect light and prevent it from reaching your skin.
Water, Caprylic/Capric Triglyceride, Glycerin, Isododecane, Cetearyl Olivate, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Cyclodextrin, Cetearyl Alcohol, Sorbitan Olivate, Tocopheryl Acetate, Squalane, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydroxyacetophenone, 3-O-Ethyl Ascorbic Acid, Phenoxyethanol, Hydroxypropyl Methylcellulose, Sodium Hyaluronate, Tetrahexyldecyl Ascorbate, Rubus Chamaemorus Seed Oil, Pentylene Glycol, Daucus Carota Sativa Seed Oil, Retinal, Alumina, Isostearic Acid, Lecithin, Sodium Polyaspartate, Polyglyceryl-3 Polyricinoleate, Lonicera Japonica Flower Extract, Lonicera Caprifolium Flower Extract, Polyhydroxystearic Acid, Disodium EDTA, Ethylhexylglycerin, Stearic Acid, Polysorbate 60, Sorbitan Isostearate, BHT, Vanilla Planifolia Fruit Extract, Dipteryx Odorata Bean Extract, Coumarin, CI 14700, Titanium Dioxide
3 Benefits 2 Concerns
Tretinoin is the best retinoid due to its proven skin benefits. It only available with a prescription in many countries.
Fragrance Preservative 6 Concerns
Benzyl Alcohol is most commonly used as a preservative. It also has a subtle, sweet smell. Small amounts of Benzyl Alcohol is not irritating and safe to use in skincare products. Most Benzyl Alcohol is derived from fruits such as apricots.
Paraben 3 Concerns
Butylparaben is a preservative, is a paraben, and is not reef safe. It can be bad for dry skin and worsen eczema.
BHT is a synthetic antioxidant. As an antioxidant, it helps your body fight off free-radicals. Free-radicals are molecules that may damage your skin cells.
Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.
Paraben Non-Reef-Safe
Ethylparaben is a preservative, is a paraben, and is not reef safe.
Hydrolyzed collagen has a misleading name because it is actually a mixture of various proteins/peptides. This ingredient has skin hydrating properties.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Can worsen Dry Skin
Isobutylparaben is a paraben. It can be bad for dry skin.
Paraben 2 Concerns
Methylparaben is a preservative and is a paraben. It is used to prevent the growth of fungus, mold, and other harmful bacteria. Parabens are chemicals used as preservatives in both cosmetics and food.
Octoxynol-9 are part of a group called ethoxylated alkyl phenols. Octoxynols are usually found in hair-coloring products.
Phenoxyethanol 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.
Paraben 2 Concerns
Propylparaben is a preservative and is a paraben with antifungal and antimicrobial properties.
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.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Triethanolamine 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.
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 WaterGlycerin 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 GlycerinPhenoxyethanol 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.
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 HyaluronateBHT is a synthetic antioxidant. As an antioxidant, it helps your body fight off free-radicals. Free-radicals are molecules that may damage your skin cells.
BHT also helps stabilize products and prevent them from degrading. Many products are sensitive to air and light. BHT prevents them from breaking down when exposed.
Ingredient Ratings
Here's what our community thinks of the ingredients in these two products.
When to use
Medik8 Crystal Retinal 6 41 ingredients
Obagi Tretinoin 0.05% Gel 16 ingredients
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