Byredo Ultra Definer Refillable Brow Pencil
A eyebrow with 14 ingredients, including vitamin E.
Overview
What it is
Eyebrow with 14 ingredients that contains Vitamin E
Cool Features
It is cruelty-free and reef safe
Suited For
It has ingredients that are good for anti aging, dry skin, brightening skin and dark spots
Free From
It doesn't contain any harsh alcohols, common allergens, fragrances, parabens, silicones or sulfates
Fun facts
Byredo is from Sweden.
We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Explained
Synthetic Fluorphlogopite is the synthethic version of mica. It consists of fluorine, aluminum and silicate.
Synthetic Fluorphlogopite is used to add volume to products.
It is considered non-irritating on the skin.
Learn more about Synthetic FluorphlogopiteStearic Acid is a fatty acid that is already found in your skin. It's one of the free fatty acids that works alongside ceramides and cholesterols to maintain your barrier.
In cosmetics, it is a multitasker:
Safety-wise, the CIR Expert Panel has concluded it to be safe in cosmetics when formulated to be non-irritating and non-sensitizing.
Free stearic acid is a C18 fatty acid that the Malassezia yeast can substrate, so this ingredient may not be fungal acne safe.
Learn more about Stearic AcidHydrogenated Castor Oil (aka "castor wax") is what you get when castor oil is turned into a wax.
Its dominant fatty acid is ricinoleic acid, giving it both emollient and mild humectant properties.
According to EU CosIng, this ingredient helps soften skin, keep oil and water stay mixed, and thickens products.
Hydrogenated castor oil at 30% did not trigger a positive patch-test reaction and is well-tolerated.
Since this ingredient is based on an 18-carbon fatty acid, it falls into the chain-length range that Malassezia can feed on and may not be fungal acne safe.
Learn more about Hydrogenated Castor OilThis ingredient is also known as Japan wax. It is made from the fruit pulp of the Japanese wax tree.
In cosmetics, this ingredient acts like a classic wax; it thickens and stabilizes formulas, helps bind powders, and leaves an emollient film to help reduce moisture loss.
It is important to note this ingredient comes from a tree that is part of the Toxicodendron species that are well-known for having urushiol, an allergen also found in poison ivy.
Though this ingredient comes from the fruit instead of sap (the sap contains the substance that causes itchy rashes), there is a very small chance that sensitive people could react.
Learn more about Rhus Succedanea Fruit WaxThis ingredient comes from trimethylolpropane and isostearic acid. It has emollient and skin conditioning properties.
According to a manufacturer, this ingredient provides a non-tacky, light, glossy feeling on the skin.
Due to its isotearic acid base, this ingredient may not be fungal-acne safe.
Learn more about Trimethylolpropane TriisostearateHydrogenated Castor Oil Isostearate is an oil and isn't fungal acne safe.
Polyglyceryl-2 Triisostearate is a plant-derived emulsifier and pigment-dispersing agent with a non-sticky skin feel.
It helps products glide on smoothly and prevents oil and water from separating in a formula, making it suitable for sunscreen and makeup formulations.
The EU inventory of cosmetics has no use restrictions on this ingredient and it is considered well-tolerated.
This ingredient may not be fungal acne safe because it is derived from isostearic acid.
Learn more about Polyglyceryl-2 TriisostearateJojoba Esters is a wax created from Jojoba oil. It is an emollient and film-forming ingredient. In bead form, it is an exfoliator.
This ingredient has high oxidative stability, meaning it doesn't break down when exposed to oxygen.
Its similarity to our skin's natural oils makes it a great emollient. Emollients help soften and soothe our skin by creating a barrier on top. This barrier helps trap moisture in, keeping skin hydrated.
It is created using either the hydrogenation or transesterification processes on jojoba oil.
Learn more about Jojoba EstersAluminum Hydroxide is a form of aluminum. It can be naturally found in nature as the mineral gibbsite. In cosmetics, Aluminum Hydroxide is used as a colorant, pH adjuster, and absorbent.
As a colorant, Aluminum Hydroxide may add opacity, or reduce the transparency. Aluminum hydroxide is contains both basic and acidic properties.
According to manufacturers, this ingredient is an emollient and humectant. This means it helps hydrate the skin.
In medicine, this ingredient is used to help relieve heartburn and help heal ulcers.
There is currently no credible scientific evidence linking aluminum hydroxide in cosmetics to increased cancer risk.
Major health organizations allow the use of aluminum hydroxide in personal care products and have not flagged it as a carcinogenic risk at typical usage levels.
Learn more about Aluminum HydroxideTocopherol is a fat-soluble antioxidant known as Vitamin E.
You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.
Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.
It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.
This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.
This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.
Concentrations usually range from 0.1-1% in most leave-on products.
Learn more about TocopherolCi 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.
Iron III oxides are classified as inorganic chemicals for coloring.
CI 77492 is also hydrated iron III oxide. It's sole purpose is to give a yellow hue to products.
Iron III oxides are classified as inorganic chemicals for coloring.
Synthetically created CI 77492 is considered safer than those naturally found. This is because the synthetically created version may contain less impurities. Iron oxides are generally non-toxic and non-allergenic.
Learn more about CI 77492Ci 77491 is also hydrated iron III oxide. It's sole purpose is to give a red/pink hue to products.
Iron III oxides are classified as inorganic chemicals for coloring.
Synthetically created Ci 77491 is considered safer than those naturally found. This is because the synthetically created version may contain less impurities. Iron oxides are generally non-toxic and non-allergenic.
Learn more about CI 77491Ci 77891 is a white pigment from Titanium dioxide. It is naturally found in minerals such as rutile and ilmenite.
It's main function is to add a white color to cosmetics. It can also be mixed with other colors to create different shades.
Ci 77891 is commonly found in sunscreens due to its ability to block UV rays.
Learn more about CI 77891Reviews
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Where it's from
Byredo is a Swedish brand
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We're dedicated to providing you with the most up-to-date and science-backed ingredient info out there.
The data we've presented on this page has been verified by a member of the SkinSort Team.
Read more about usยท Updated April 24, 2025 • Added by starstellastar_407