Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 3 ingredients in common
Cool Features
They both contain exfoliants and Vitamin E
Suited For
They're both likely to be good for fighting acne, brightening skin and sensitive skin
Free From
They both do not contain any harsh alcohols, common allergens, parabens or sulfates
What's Inside
They both contain silicones
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
Rare Beauty Pore Diffusing Primer - Always an Optimist Collection 30 ingredients
Smashbox 24 Hour Photo Finish Eyeshadow Primer 30 ingredients
At a glance
Click on any of the items below to learn more
Rare Beauty Pore Diffusing Primer - Always an Optimist Collection 30 ingredients
Smashbox 24 Hour Photo Finish Eyeshadow Primer 30 ingredients
Notable Ingredients
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Benefits
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Concerns
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Notable Ingredients
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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.
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.
Methyl Trimethicone is a type of silicone. It is a solvent and emulsifier.
Dipropylene Glycol is a synthetically created stabilizer and solvent. It is a part of the glycol class in the alcohol family.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
We don't have a description for Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer.
Dimethicone/Vinyl Dimethicone Crosspolymer is a silicone used to improve the texture of products and absorb oil. It does not get absorbed into the skin.
This ingredient is a high molecular weight silicone. It has emulsifying and skin conditioning properties.
Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
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.
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.
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.
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
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.
Glyceryl Acrylate/Acrylic Acid Copolymer is made up of glycerin and polyacrylic acid. It helps hydrate your skin as a humectant.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
5 Benefits
Camellia Sinensis Leaf Extract is derived from the leaves of the tea plant. Black tea, green tea, and oolong tea are all harvested from this plant.
Sodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.
4 Benefits May cause irritation
Hyaluronic acid is naturally found in healthy skin. It is a humectant, meaning it draws moisture to your skin.
Hydrolyzed Hyaluronic Acid is a form of hyaluronic acid. It is created by the hydrolysis of hyaluronic acid with a high molecular weight. Once created, Hydrolyzed Hyaluronic Acid has a low molecular weight.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Nelumbium Speciosum Flower Extract comes from the Lotus Flower, Nelumbiumspeciosum.
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.
Antioxidant 4 Benefits May cause irritation
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Water, Dimethicone, Methyl Trimethicone, Dipropylene Glycol, Glycerin, Butylene Glycol, Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, Dimethicone/Vinyl Dimethicone Crosspolymer, Cetyl Peg/Ppg-10/1 Dimethicone, Sodium Chloride, Dimethicone/Peg-10/15 Crosspolymer, Silica, Propanediol, Sodium Benzoate, Potassium Sorbate, Tocopheryl Acetate, Eclipta Prostrata Extract, Glyceryl Acrylate/Acrylic Acid Copolymer, Parfum, Camellia Sinensis Leaf Extract, Sodium Citrate, Melia Azadirachta Leaf Extract, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Gardenia Florida Fruit Extract, Nelumbo Nucifera Flower Extract, Nymphaea Odorata Root Extract, Moringa Oleifera Seed Oil, Tocopherol
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.
Talc is a clay mineral. It helps absorb moisture and improve the texture of products. Like other types of clay, Talc can have a slight exfoliating effect on skin. Talc can be added to increase the volume of products.
This ingredient comes from Hydroxystearic Acid, a fatty acid, and glycerin. It is used to thicken oils.
Disteardimonium Hectorite comes from the clay mineral named hectorite. It is used to add thickness to a product.
2 Benefits
Kaolin is a clay. It is used for oil control and to help minimize pores. Like other clays, kaolin has the ability to absorb excess sebum or oil. This can help clean out pores and mattify the skin.
Hydrogenated Polyisobutene is a synthetic polymer. Polymers are compounds with high molecular weight. Hydrogenated Polyisobutene is an emollient and texture enhancer.
Polyethylene is a synthetic ingredient that helps the skin retain moisture. It is a polymer.
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.
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.
Triethylhexanoin is created from glycerin and 2-ethylhexanoic acid. It is a solvent and emollient.
Bisabolol is pimarily used to add fragrance to a product. However, it is also famous for helping soothe skin.
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.
Alumina is another name for the compound aluminum oxide. It is used as a thickener, absorbent, and abrasive.
This ingredient is a solvent. It helps dissolve active ingredients and alter the texture of products.
Sorbitan Sesquioleate is derived from sorbitol and oleic acid. It is an emulsifier and prevents ingredients from separating.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
Peg-40 Stearate is a waxy solid made up of polyethylene glycol and stearic acid. It is an emulsifier and cleanser. Emulsifiers help oils and water mix.
Isopropyl Titanium Triisostearate isn't fungal acne safe.
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate (long name, huh?) is a synthetic antioxidant.
Mica refers to a group of silicate minerals. Mica crystals are easily split to give products a shimmer. These crystals are able to reflect light to temporarily give your skin a glowy look.
Ci 77891 is a white pigment from Titanium dioxide. It is naturally found in minerals such as rutile and ilmenite.
Ci 77499 is also hydrated iron III oxide. It is created from mixing red and black iron oxides. This helps give shades of darkness to a product.
Dimethicone, Isododecane, Talc, Dimethicone Silylate, Trihydroxystearin, Disteardimonium Hectorite, Kaolin, Hydrogenated Polyisobutene, Polyethylene, Vp/Eicosene Copolymer, Trioctyldodecyl Citrate, Tocopheryl Acetate, Lecithin, Triethylhexanoin, Bisabolol, Silica, Alumina, Ethylene/Methacrylate Copolymer, Propylene Carbonate, Sorbitan Sesquioleate, Caprylyl Glycol, Stearic Acid, Glycyrrhetinic Acid, Peg-40 Stearate, Isopropyl Titanium Triisostearate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Mica, CI 77891, CI 77499, CI 77163
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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.
Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.
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.
Silica is often used for absorption and can help reduce shine when products are applied. Silica occurs in naturally in materials like clay and sandstone, and it can also be produced synthetically.
Silica is present naturally within the skin during collagen production and when reducing inflammation.
Learn more about SilicaTocopheryl 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
Rare Beauty Pore Diffusing Primer - Always an Optimist Collection 30 ingredients
Smashbox 24 Hour Photo Finish Eyeshadow Primer 30 ingredients
Reviews
Here's what our community thinks
Rare Beauty Pore Diffusing Primer - Always an Optimist Collection 30 ingredients
tiffchikin
Didn't do anything
Didn't do anything on my combination skin, not for pore minimizing or longevity of my makeup. I find that it actually makes my...
Didn't do anything
Didn't do anything on my combination skin, not for pore minimizing or longevity of my makeup. I find that it actually makes my makeup slides off faster on my nose during the day.
MichelleR
So I don’t hate it. It just doesn’t make any noticeable difference. Maybe my pores are just too large.
