Updated on July 14, 2023
Overview
What they are
These products are both reef safe . They have a total of 5 ingredients in common
Cool Features
They both contain Vitamin E
Suited For
They're both likely to be good for fighting acne, dry skin and brightening skin
Free From
They both do not contain any harsh alcohols, common allergens, oils, parabens 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
Kiehl's Ultra Facial Oil-Free Gel Cream 22 ingredients
Pixi Beauty PIXI Collagen and Retinol Serum 19 ingredients
At a glance
Click on any of the items below to learn more
Kiehl's Ultra Facial Oil-Free Gel Cream 22 ingredients
Pixi Beauty PIXI Collagen and Retinol Serum 19 ingredients
Notable Ingredients
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Notable Ingredients
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This product contains 1 ingredient that may have this attribute:
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Benefits
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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.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.
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.
Isononyl Isononanoate is a synthetic skin-conditioner and texture enhancer. It is created from nonanoic acid, a fatty acid found in cocoa and lavender oil.
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.
Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Dimethiconol is a silicone that resembles the popular dimethicone. Like other silicones, it is an emollient. Emollients create a thin film on skin to prevent moisture from escaping.
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.
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
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.
Tetrasodium EDTA is the salt formed from neutralizing ethylenediamine tetraacetic acid with sodium hydroxide. It is a chelating agent and used to prevent metal ions from binding to other ingredients. This helps keep the product and ingredients stable.
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.
Pseudoalteromonas Ferment Extract isn't fungal acne safe.
Biosaccharide Gum-1 is a sugar created from fermented sorbitol. Most sorbitol is made from potato starch.
Preservative 5 Benefits 4 Concerns
Salicylic Acid (also known as beta hydroxy acid or BHA) is one of the most well-known ingredients for treating skin that struggles with blackheads and acne. It helps to exfoliate both the skin's surface and pores, and also acts as an anti-inflammatory agent.
Water, Glycerin, Propanediol, Dimethicone, Isononyl Isononanoate, Hydroxyethylpiperazine Ethane Sulfonic Acid, Phenoxyethanol, Carbomer, Butylene Glycol, Chlorphenesin, Caprylyl Glycol, Dimethiconol, Sodium Hydroxide, Xanthan Gum, Pentylene Glycol, Tetrasodium EDTA, Tocopheryl Acetate, Menthoxypropanediol, Pseudoalteromonas Ferment Extract, Biosaccharide Gum-1, Sarcosine, Salicylic Acid
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.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
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.
We don't have a description for Methyl Methacrylate/Glycol Dimethacrylate Crosspolymer.
6 Benefits
Niacinamide has emerged as an all-star ingredient due to its many benefits.
Rosemary extract has antioxidant, anti-inflammatory, anti-bacterial, and astringent properties.
Antioxidant 6 Benefits
Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.
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.
4 Benefits 2 Concerns
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
Hydroxyethylcellulose is used to improve the texture of products. It is created from a chemical reaction involving ethylene oxide and alkali-cellulose. Cellulose is a sugar found in plant cell walls and help give plants structure.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
This BHA stands for butylated hydroxyanisole. If you are looking for the beta-hydroxy acid, aka as Salicylic Acid, click here.
Water, Glycerin, Acacia Seyal Gum Extract, Retinol, Methyl Methacrylate/Glycol Dimethacrylate Crosspolymer, Acetyl Heptapeptide-4, Niacinamide, Rosmarinus Officinalis Extract, Anthemis Nobilis Flower Extract, Ascorbic Acid, Tocopheryl Acetate, Citric Acid, Carbomer, Potassium Sorbate, Hydroxyethylcellulose, Caprylyl Glycol, Disodium EDTA, Propyl Gallate, BHA
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 GlycerinCarbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.
Carbomer is commonly found in many types of cosmetics products. It is found to be safe in concentrations up to 15%. However, a high amount of carbomer can cause pilling or balling up of products. Most products contain 1% of less of carbomer.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolTocopheryl 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 AcetateIngredient Ratings
Here's what our community thinks of the ingredients in these two products.
When to use
Kiehl's Ultra Facial Oil-Free Gel Cream 22 ingredients
Pixi Beauty PIXI Collagen and Retinol Serum 19 ingredients
Reviews
Here's what our community thinks
Kiehl's Ultra Facial Oil-Free Gel Cream 22 ingredients
MeaganClare
Great moisturizer for summer
This cream is great for oily skin. I discontinued using this as I needed a more powerful moisturizer to repair my...
Great moisturizer for summer
This cream is great for oily skin. I discontinued using this as I needed a more powerful moisturizer to repair my skin's moisture barrier, but I think it will be great in the summer and for those without the same issue with chemically drying their skin's top layer, lol
