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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black versus NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black .

Last updated on January 15, 2024. Published on February 27, 2024

Overview

What they are

These products are both vegan, cruelty-free, and reef safe eyeliners. They have a total of 13 ingredients in common

Free From

They both do not contain any harsh alcohols, common allergens, fragrances, parabens or silicones

What's Inside

They both contain oils and sulfates

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.

Eyeliner American Brand United States
Eyeliner American Brand United States

Eyeliner

A liquid, gel, or pencil used to define the eyes.

Eyeliner

A liquid, gel, or pencil used to define the eyes.

Price

Shop

Buy Eye Booster Ultra Fine Eyeliner

Starts at $11.49
Shop

Buy Epic Ink Liner Waterproof Liquid Eyeliner

Starts at $7.99

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

At a glance

Click on any of the items below to learn more

Concerns

Eczema

Concerns

Drying
May Worsen Oily Skin
Irritating
Eczema
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Ingredients Side-by-side

Ingredients that are highlighted in purple are present in both products.

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Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

1
What it does: Skin Conditioning, Solvent
Community Rating: Loved

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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 1.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 1.

We don't have a description for Acrylates/Ethylhexyl Acrylate Copolymer.

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 2.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 3.

3
What it does: Humectant, Skin Conditioning, Solvent
Community Rating: Very Disliked

Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.

Another role of this ingredient is preventing a product from melting or freezing. Propylene glycol also adds antimicrobrial properties to a product, elongating product lifespan.

This ingredient is considered an organic alcohol and commonly added into both cosmetics and foods.

Those with sensitive skin or conditions may deliver a rash when using this ingredient.

Learn more about Propylene Glycol

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 3.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 2.

4
What it does: Cleansing

We don't have a description for Laureth-21.

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 4.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 4.

We don't have a description for Acrylates/Dimethylaminoethyl Methacrylate Copolymer.

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 5.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 5.

6
What it does: Emulsifying
Community Rating: Very Disliked

Peg-40 Hydrogenated Castor Oil is derived from castor oil and polyethylene glycol (PEG). It is used as a emollient and emulsifier.

As an emulsifier, it helps prevent ingredients from separating. It also helps make the other ingredients more soluble; it is often used to solubilize fragrances. This increases spreadability and elongates shelf life in a product.

Emollients help soothe and soften the skin. They do this by creating a protective film on your skin. This barrier helps trap moisture and keeps your skin hydrated. Emollients may be effective at treating dry or itchy skin.

This ingredient may or may not be vegan, depending on the source.

Peg-40 Hydrogenated Castor Oil may not be fungal-acne safe. We recommend speaking with a professional if you have any questions or concerns.

Learn more about Peg-40 Hydrogenated Castor Oil

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 6.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 7.

7
What it does: Preservative
Community Rating: Very Disliked

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and 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.

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 7.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 16.

8
What it does: Preservative
Community Rating: Loved

This ingredient is a preservative with antimicrobial properties. It is the sodium salt of dehydroacetic acid.

It is especially effective at preventing bacterial and fungal growth in low concentrations.

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 8.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 15.

9
What it does: Cleansing, Foaming

Sodium Laureth-12 Sulfate is a type of sulfate.

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 9.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 8.

10
What it does: Emollient, Humectant, Skin Conditioning
Community Rating: Liked

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 Glycol

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 10.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 12.

11
What it does: Emulsifying

We don't have a description for C11-15 Pareth-7.

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 12.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 6.

12
What it does: Humectant, Masking, Skin Conditioning, Solvent
Community Rating: Mixed

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

  • It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
  • It is a humectant, which means that it helps attract moisture into the skin.
  • It helps improve product application.

Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 13.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 13.

13
What it does: Preservative
Community Rating: Disliked

Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.

Potassium sorbate is potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.

Potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.

Potassium sorbate is often used with stronger preservatives.

Learn more about Potassium Sorbate

Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black contains this as ingredient number 14.

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black contains this as ingredient number 14.

Here's what our community thinks of the ingredients in these two products.

22% are loved or liked
11% have mixed ratings
22% are disliked or very disliked
44% have no rating yet
19% are loved or liked
6% have mixed ratings
38% are disliked or very disliked
38% have no rating yet

Usage

Here's some more info on how this product is used by our community.

When to use

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Reviews

Here's what our community thinks

Physician's Formula Eye Booster Ultra Fine Eyeliner 18 ingredients

5.0 /5
from 0 ratings

NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner 16 ingredients

Epic Ink Liner Waterproof Liquid Eyeliner hasn't been rated yet.
Rate it now

Alternatives

Our Dupe Finder has found 11 potential alternatives that have similar ingredients to Physician's Formula Eye Booster Ultra Fine Eyeliner Blackest Black.

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Our Dupe Finder has found 12 potential alternatives that have similar ingredients to NYX Cosmetics Epic Ink Liner Waterproof Liquid Eyeliner Black.

See 12 alternatives
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