ZO Skin Health Retinol Skin Brightener Versus Medik8 Crystal Retinal 10
Updated on June 28, 2024
Overview
What they are
These products are both serums. They have a total of 11 ingredients in common
Cool Features
They both contain exfoliants, retinoid, Vitamin C and Vitamin E
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain common allergens, fragrances and oils
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
ZO Skin Health Retinol Skin Brightener 49 ingredients
Medik8 Crystal Retinal 10 47 ingredients
At a glance
Click on any of the items below to learn more
ZO Skin Health Retinol Skin Brightener 49 ingredients
Medik8 Crystal Retinal 10 47 ingredients
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
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:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 4 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 5 ingredients that may have this attribute:
This product contains 4 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 6 ingredients that may have this attribute:
Concerns
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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 2 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Not safe for Fungal Acne
Prunus Amygdalus Dulcis Oil comes from the sweet almond, a tree native to Iran. This oil has no fragrance and is non-volatile.
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.
Cetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product.
Steareth-20 is a waxy compound used to emulsify ingredients. It is created from stearyl alcohol.
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.
Antioxidant 6 Benefits
Ascorbyl Glucoside is a stable form of Vitamin C. It is created by combining glucose from starch.
Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.
8 Benefits 3 Concerns
Retinol 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.
Not safe for Fungal Acne
Prunus Armeniaca Kernel Oil is oil from the kernels of the Apricot, Prunus armeniaca L., Rosaceae. This oil is non-fragrant and non-volatile.
EU Allergen
Pelargonium Graveolens Flower Oil is the pressed oil of the Rose Geranium plant. It is volatile, meaning it evaporates off the skin.
EU Allergen
Lavandula Angustifolia Oil is more commonly known as lavender essential oil. Lavandula Angustifolia is known as the English Lavender and famous for creating purple fields in Provence, France.
3 Benefits
Bakuchiol is a plant-derived antioxidant (it's vegan!). It is often called the replacement for retinol although it is not part of the same family.
Acetyl Glucosamine is an antioxidant and humectant. It is a form of Vitamin C.
Cetearyl Glucoside is a surfactant and emulsifier. It can be produced from synthetic of natural sources of cetearyl alcohol and glucose.
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.
5 Concerns
Alcohol comes in many different forms. Different types of alcohol will have different effects on skin. This ingredient is usually an astringent alcohol.
Glutathione is an antioxidant naturally found in our bodies. It is made up of three amino acids: glycine, cysteine, and glutamic acid.
Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Bisabolol is pimarily used to add fragrance to a product. However, it is also famous for helping soothe skin.
1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.
2 Concerns
Silica is a mineral naturally found in our skin. It helps to thicken and smooth the texture of a product. It also acts as an agent for other ingredients by increasing the absorption of other ingredients into the skin.
Polysorbate 80 is a surfactant and emulsifier. It is used to keep ingredients together, and prevent oils and waters from separating.
This BHA stands for butylated hydroxyanisole. If you are looking for the beta-hydroxy acid, aka as Salicylic Acid, click here.
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate (long name, huh?) is a synthetic antioxidant.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Sorbitan Isostearate is an emulsifer and cleaning agent. It is created from isostearic acid and sorbitol.
2 Benefits
Gluconolactone is a PHA. PHAs are a great gentle alternative to traditional AHAs.
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.
Sodium Sulfite is a preservative. Preservatives help prevent mold and bacteria from growing in cosmetics.
Preservative
Sodium Metabisulfite is an antioxidant and is a preservative.
Antioxidant 6 Benefits Not safe for Fungal Acne
Ascorbyl Palmitate is created by combining pure Vitamin C and palmitic acid. It is an antioxidant and helps reduce hyperpigmentation.
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
2 Concerns
Linalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.
EU Allergen
Citronellol is used to add fragrance/parfum to a product. It is often derived from plants such as roses. In fact, it can be found in many essential oils including geranium, lavender, neroli, and more. The scent of Citronellol is often described as "fresh, grassy, and citrus-like".
EU Allergen
Geraniol is used to add fragrance/parfum to a product. It is the main component of citronellol. It is a monoterpenoid and an alcohol.
Limonene is a fragrance that adds scent and taste to a formulation.
EU Allergen
Citral is a fragrance and used to add a lemon-like scent to products. It is both naturally found in plants and created synthetically. In plants, it is commonly occurring in lemon myrtle, lemongrass, lemon tea-tree, lemon verbena, and other citruses.
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.
Water, Dimethicone, Cetearyl Isononanoate, Glycerin, Prunus Amygdalus Dulcis Oil, Cetearyl Alcohol, Cetyl Alcohol, Steareth-20, Pentylene Glycol, Ascorbyl Glucoside, Acrylamide/Ammonium Acrylate Copolymer, Polysorbate 20, Retinol, Prunus Armeniaca Kernel Oil, Pelargonium Graveolens Flower Oil, Lavandula Angustifolia Oil, Propylheptyl Caprylate, Bakuchiol, Acetyl Glucosamine, Cetearyl Glucoside, Lecithin, Polyisobutene, Alcohol, Glutathione, Carbomer, Caprylyl Glycol, Bisabolol, 1,2-Hexanediol, Silica, Polysorbate 80, BHA, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Disodium EDTA, Sorbitan Isostearate, Gluconolactone, Tocopheryl Acetate, Sodium Sulfite, Sodium Metabisulfite, Ascorbyl Palmitate, Soy Isoflavones, Sodium Hydroxide, Potassium Sorbate, Sodium Benzoate, Linalool, Citronellol, Geraniol, Limonene, Citral, Coumarin
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.
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.
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.
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 4 Benefits Not safe for Fungal Acne
Ascorbyl Tetraisopalmitate is a version of ascorbic acid, or pure Vitamin C.
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.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Hydroxyacetophenone is antioxidant and helps with skin conditioning.
Polyhydroxystearic Acid is a soft wax made from castor oil.
Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
5 Benefits
You might know this ingredient as Ethyl Ascorbic Acid, a more stable version of ascorbic acid.
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.
This Honeysuckle flower extract comes from the Italian honeysuckle. It is an antioxidant, antimicrobial, and fragrance.
Not safe for Fungal Acne
Rubus Chamaemorus Seed Oil is an oil and isn't fungal acne safe.
Not safe for Fungal Acne
Moringa Oleifera Seed Oil is the oil expressed from the seeds of Moringa oleifera plant. It is more commonly known as Moringa seed oil.
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.
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.
Vanilla Planifolia Fruit Extract comes from the vanilla orchid native to central America. It is a skin-soothing ingredient.
This BHA stands for butylated hydroxyanisole. If you are looking for the beta-hydroxy acid, aka as Salicylic Acid, click here.
1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.
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.
Water, Caprylic/Capric Triglyceride, Glycerin, Isododecane, Cetearyl Olivate, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Cetearyl Alcohol, Ppg-12/Smdi Copolymer, Sorbitan Olivate, Tocopheryl Acetate, Titanium Dioxide, Squalane, Eclipta Prostrata Extract, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Phenoxyethanol, Cyclodextrin, Hydroxypropyl Methylcellulose, Sodium Hyaluronate, Ascorbyl Tetraisopalmitate, Melia Azadirachta Leaf Extract, Alumina, Isostearic Acid, Lecithin, Polyglyceryl-3 Polyricinoleate, Disodium EDTA, Hydroxyacetophenone, Polyhydroxystearic Acid, Stearic Acid, Ethylhexylglycerin, 3-O-Ethyl Ascorbic Acid, Daucus Carota Sativa Seed Oil, Sodium Polyaspartate, Climbazole, Retinal, Dipteryx Odorata Bean Extract, Lonicera Japonica Flower Extract, Lonicera Caprifolium Flower Extract, Rubus Chamaemorus Seed Oil, Moringa Oleifera Seed Oil, Polysorbate 60, Sorbitan Isostearate, Pentylene Glycol, Vanilla Planifolia Fruit Extract, Decylene Glycol, BHA, 1,2-Hexanediol, Coumarin
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 GlycerinCetearyl 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.
Cetearyl alcohol is an emollient. Emollients help soothe and hydrate the skin by trapping moisture.
Studies show Cetearyl alcohol is non-toxic and non-irritating. The FDA allows products labeled "alcohol-free" to have fatty alcohols.
This ingredient is usually derived from plant oils such as palm, vegetable, or coconut oils. There is debate on whether this ingredient will cause acne.
Due to the fatty acid base, this ingredient may not be Malassezia folliculitis safe.
Learn more about Cetearyl AlcoholPentylene 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.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can help thicken or emulsify a product. Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolLecithin 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.
Lecithin is an emollient. Emollients help soften the skin and creates a barrier to keep moisture in.
As an emulsifier, it also helps prevent water and oil ingredients from separating. Lecithin can help ingredients be better absorbed by the skin. The phospholipids in Lecithin can produce liposomes. Liposomes help other ingredients get through the skin barrier.
Learn more about Lecithin1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.
In products that are water-based, this ingredient can help stabilize perfumes and fragrances. It can also help make the texture of products softer and more smooth.
This 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.
However, it is 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 BHADisodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTASorbitan Isostearate is an emulsifer and cleaning agent. It is created from isostearic acid and sorbitol.
As an emulsifier, Sorbitan Isostearate prevents oils and water from separating.
Due to its isostearic acid base, it may not be safe for Malassezia or fungal acne.
Learn more about Sorbitan IsostearateTocopheryl 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.
One study found using Tocopheryl Acetate with Vitamin C decreased the number of sunburned cells.
Tocopheryl Acetate is commonly found in both skincare and dietary supplements.
Learn more about Tocopheryl AcetateCoumarins are a group of substances found naturally in plants. There are over 1300 types of coumarins identified. It has a natural vanilla scent.
Coumarin is an identified EU known allergy, meaning it may cause an allergic reaction when applied to the skin.
In many countries, coumarin is banned as a food additive. However, it can be found in soaps, tobacco products, and some alcohol drinks.
Plants use coumarins as a chemical defense. Some plants that have coumarins include lavender, tonka beans, and yellow clovers.
Learn more about CoumarinIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
ZO Skin Health Retinol Skin Brightener 49 ingredients
Medik8 Crystal Retinal 10 47 ingredients
Reviews
Here's what our community thinks
