Versus

Prequel Sun Barrier Mineral Sunscreen Broad Spectrum SPF 50 PA++++ Versus Kopari Antioxidant Face Shield Daily 100% Mineral SPF 30

Sunscreen
Sunscreen
American Brand United States
American Brand United States

Updated on January 12, 2024

Overview

What they are

These products are both vegan and cruelty-free sunscreens. They have a total of 12 ingredients in common

Cool Features

They both contain SPF and Vitamin E

Suited For

They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin and sensitive skin

Free From

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

What's Inside

They both contain fragrances

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

Click any item below to learn more and see relevant ingredients

About this product

About this product

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Sun Barrier Mineral Sunscreen Broad Spectrum SPF 50 PA++++
Antioxidant Face Shield Daily 100% Mineral SPF 30

Ingredients Explained

These ingredients are found in both products.

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

Cosmetic Colorant, Skin Protecting, UV Absorber

Zinc Oxide is a mineral broad-spectrum UV filter; it is the broadest UVA and UVB reflector approved by the FDA. While it is most commonly man-made for cosmetics, it can naturally occur in zincite, a rare mineral.

Today, traditional and nano-sized zinc oxide can be found in beauty products. Nano-sized zinc oxide can enhance a product's UV protection. While it is not believed to have a negative effect on skin, nano-zinc oxide may be harmful to coral reefs - though the verdict is not entirely out on this one.

Zinc Oxide also has antibacterial and calming properties. It is not water soluble.

Zinc has been used throughout history as an ingredient in paint and medicine. An Indian text from 500BC is believed to list zinc oxide as a salve for open wound. The Ancient Greek physician Dioscorides has also mentioned the use of zinc as an ointment in 1AD.

Learn more about Zinc Oxide
Skin Conditioning, Solvent

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 Water
Skin Conditioning, Solvent

Butyloctyl Salicylate is similar to octisalate. It a photostabilizer, SPF booster, emollient and solvent. Its main purpose is to evenly spread out ingredients.

This ingredient is a common sunscreen ingredient carrier and photostabilizer. According to a manufacturer, it is suitable for carrying micro Titanium Dioxide, Zinc Oxide, and pigments.

Photostabilizers help stabilize UV-filters and prevents them from degrading quickly.

Due to regulation loopholes, this ingredient is not required to be labeled as an active chemical filter like other UV ingredients. This is why you'll likely find this ingredient in mineral sunscreens from the US.

According to EU regulation, this ingredient can cause harmful effects to aquatic life.

Learn more about Butyloctyl Salicylate
Solvent

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin. 

It’s often used to:

Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.

Learn more about Propanediol
Humectant, Skin Conditioning, Skin Protecting

Glycerin 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 Glycerin

Polyhydroxystearic Acid is a soft wax made from castor oil.

It is is a texture thickener, emulsifier, and film-former. Emulsifiers prevent ingredients from separating, such as oils and waters.

Polyhydroxystearic Acid may not be fungal acne safe.

Learn more about Polyhydroxystearic Acid
Masking, Skin Conditioning, Soothing

Bisabolol is famous for its skin soothing properties. It does this by blocking inflammatory signals, helping to reduce your body's reaction to irritation.

This ingredient also interferes with the process of hyperpigmentation. This can help with reducing dark spots and uneven tone.

Bisabolol is an antioxidant. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells. By fighting these free-radicals, Bisabolol may slow down signs of aging.

Studies have shown Bisabolol to have antimicrobial properties and may be a fungicide. These properties help preserve a product's shelf life.

All these properties makes bisabolol a great skin barrier helper ingredient.

Bisabolol also helps the absorption of other ingredients.

Note: Synthetic Bisabolol has been shown to be less effective.

Learn more about Bisabolol

Triethoxycaprylylsilane is a silicone used to bind and stabilize ingredients.

As an emulsifier, it helps prevent ingredients from separating. This can help elongate the shelf life of products.

Triethoxycaprylylsilane is often used to coat mineral sunscreens ingredients to help give a better feel. It also helps reduce oxidative stress in sunscreens.

Learn more about Triethoxycaprylylsilane

Potassium Cetyl Phosphate is the potassium salt of a mixture. This mixture consists of the esters from phosphoricacid and cetyl alcohol.

Potassium Cetyl Phosphate is an emulsifier and cleansing agent. Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.

As a cleansing agent, Potassium Cetyl Phosphate helps gather oils, dirts, and pollutants from your skin. This makes it easier to rinse them away with water.

Learn more about Potassium Cetyl Phosphate
Emollient, Humectant, Skin Conditioning

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
Antioxidant, Skin Conditioning

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.

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 Acetate
Emulsifying

Sorbitan Oleate is created from compounds in oleic acid and sorbitol.

It is used to stabilize a product by preventing ingredients from separating. Emulsifiers help keep ingredients together, such as oils and water.

According to a manufacturer, the ingredient Sorbitan Monooleate shares an INCI name with this one.

Sorbitan Oleate may not be fungal acne safe. It can also worsen oily skin.

Learn more about Sorbitan Oleate

When to use

45 Routines
98% use in am
2% use in pm
96% use every day
When to use See routines that use it ->
3 Routines
100% use in am
0% use in pm
100% use every day

Reviews

Here's what our community thinks

Prequel Sun Barrier Mineral Sunscreen Broad Spectrum SPF 50 PA++++ 43 ingredients

4.2 /5
from 5 ratings
Works Well (3) Light (2) No Scent (2)
sarahglawe's avatar

Sarah Glawe

29 days ago
Review

I have sensitive skin, especially with sunscreens. I had one of the worst allergic reactions of my life with this sunscreen. I have no idea what caused it, as I am usually just fine with mineral sunscreens. Definitely recommend patch testing if you are sensitive with sunscreens like I am. Other than that, the finish was beautiful and felt great on my skin at first.

#broke me out
#irritating
katieburke's avatar

Katie Burke

8 months ago
Review

Super lightweight and moisturizing sunscreen!! This is the first sunscreen that has worked so well on my sensitive skin. My new holy grail!!

#hydrating
#light
#no scent
#works well

Kopari Antioxidant Face Shield Daily 100% Mineral SPF 30 36 ingredients

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