Independent education resourceInformation here does not replace care from a qualified health professional.
Peptide Therapy GuideClear peptide education

Educational guide

Colorescience Sunforgettable Total Protection Face Shield Flex SPF 50 Versus Summer Fridays Sheer Skin Tint

Colorescience Sunforgettable Total Protection Face Shield Flex SPF 50 Versus Summer Fridays Sheer Skin Tint This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. What's inside Key Ingredients Benefits Concerns Ingredients Side-by-sid

Written by Peptide Therapy Guide Editorial Team
For education only

This guide cannot diagnose a condition or recommend a personal treatment plan. Discuss medical questions with a qualified professional.

Colorescience Sunforgettable Total Protection Face Shield Flex SPF 50 Versus Summer Fridays Sheer Skin Tint

This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Zinc Oxide 12%

Water

C12-15 Alkyl Benzoate

Butyloctyl Salicylate

Lauryl PEG-8 Dimethicone

Isododecane

Propanediol

Caprylyl Methicone

Dimethicone

Niacinamide

Tridecyl Salicylate

Dimethicone/Vinyl Dimethicone Crosspolymer

Trilaureth-4 Phosphate

Dimethiconol

Lauryl PEG-10 Tris(Trimethylsiloxy)Silylethyl Dimethicone

Mica

Polyester-1

Maltodextrin

Sodium Chloride

Bisabolol

Disodium Lauriminodipropionate Tocopheryl Phosphates

Ethylhexylglycerin

Tremella Fuciformis Sporocarp Extract

Allantoin

Silica Dimethyl Silylate

Caprylyl Glycol

Isoceteth-10

Zein

Hexylene Glycol

Dimethylmethoxy Chromanol

Synthetic Fluorphlogopite

Zea Mays Starch

Silica

Caesalpinia Spinosa Fruit Pod Extract

Hydrogenated Lecithin

Tetrasodium Glutamate Diacetate

Caprylic/Capric Triglyceride

Helianthus Annuus Sprout Extract

Phenoxyethanol

Sodium Benzoate

Benzoic Acid

Dehydroacetic Acid

Sodium Hydroxide

Sodium Myristoyl Glutamate

Aluminum Hydroxide

CI 77891

Iron Oxides

Zinc Oxide 12%, Water, C12-15 Alkyl Benzoate, Butyloctyl Salicylate, Lauryl PEG-8 Dimethicone, Isododecane, Propanediol, Caprylyl Methicone, Dimethicone, Niacinamide, Tridecyl Salicylate, Dimethicone/Vinyl Dimethicone Crosspolymer, Trilaureth-4 Phosphate, Dimethiconol, Lauryl PEG-10 Tris(Trimethylsiloxy)Silylethyl Dimethicone, Mica, Polyester-1, Maltodextrin, Sodium Chloride, Bisabolol, Disodium Lauriminodipropionate Tocopheryl Phosphates, Ethylhexylglycerin, Tremella Fuciformis Sporocarp Extract, Allantoin, Silica Dimethyl Silylate, Caprylyl Glycol, Isoceteth-10, Zein, Hexylene Glycol, Dimethylmethoxy Chromanol, Synthetic Fluorphlogopite, Zea Mays Starch, Silica, Caesalpinia Spinosa Fruit Pod Extract, Hydrogenated Lecithin, Tetrasodium Glutamate Diacetate, Caprylic/Capric Triglyceride, Helianthus Annuus Sprout Extract, Phenoxyethanol, Sodium Benzoate, Benzoic Acid, Dehydroacetic Acid, Sodium Hydroxide, Sodium Myristoyl Glutamate, Aluminum Hydroxide, CI 77891, Iron Oxides

Ethylhexyl Palmitate

Glycerin

Diethylhexyl Carbonate

Isohexadecane

Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate

Polymethylsilsesquioxane

Trimethylsiloxysilicate

C13-15 Alkane

Sodium Hyaluronate

Squalane

Centella Asiatica Leaf Extract

Tocopheryl Acetate

Tocopherol

Persea Gratissima Oil

Camellia Sinensis Leaf Extract

Carthamus Tinctorius Seed Oil

Glycine Soja Oil

Hydrogenated Vegetable Oil

Alumina

Disteardimonium Hectorite

Magnesium Oxide

Propylene Carbonate

Zinc Stearate

Boron Nitride

Potassium Sorbate

Titanium Dioxide

Water, Ethylhexyl Palmitate, Glycerin, Isododecane, Diethylhexyl Carbonate, Isohexadecane, Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate, Polymethylsilsesquioxane, Trimethylsiloxysilicate, Sodium Chloride, C13-15 Alkane, Sodium Hyaluronate, Squalane, Niacinamide, Centella Asiatica Leaf Extract, Tocopheryl Acetate, Tocopherol, Persea Gratissima Oil, Camellia Sinensis Leaf Extract, Carthamus Tinctorius Seed Oil, Glycine Soja Oil, Ethylhexylglycerin, Hydrogenated Vegetable Oil, Silica, Alumina, Disteardimonium Hectorite, Magnesium Oxide, Propylene Carbonate, Zinc Stearate, Boron Nitride, Sodium Benzoate, Potassium Sorbate, Caprylyl Glycol, Phenoxyethanol, Titanium Dioxide, Iron Oxides

Reviews

Alternatives

Ingredients Explained

These ingredients are found in both products.

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

Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.

Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.

Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).

Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:

The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.

Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.

Isododecane is a fragrance, emollient, and solvent.

As an emollient, it helps your skin stay soft and hydrated. Emollients help trap moisture into your skin.

Isododecane's role as a solvent makes it a great texture enhancer. It spreads smoothly on skin and does not leave a sticky feeling behind. Isododecane also helps prevent color transfer in makeup products.

Isododecane is not absorbed into skin.

The chemical name for this ingredient is 2,2,4,6,6-PENTAMETHYLHEPTANE.

Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.

And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.

You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.

In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.

If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare.

When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.

When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes.

In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution).

Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin.

Another name for vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.

The type of niacinamide used in skincare is synthetically created.

Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).

It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.

On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.

Another perk of this ingredient is that it stays functional across a wide pH range (3-10).

You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.

Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.

Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.

Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.

Silica, also known as silicon dioxide, is a naturally occurring mineral. It is used as a fine, spherical, and porous powder in cosmetics.

Though it has exfoliant properties, the function of silica varies depending on the product.

The unique structure of silica enhances the spreadability and adds smoothness, making it a great texture enhancer.

It is also used as an active carrier, emulsifier, and mattifier due to its ability to absorb excess oil.

In some products, tiny microneedles called spicules are made from silica or hydrolyzed sponge. When you rub them in, they lightly polish away dead skin layers and enhance the penetration of active ingredients.

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.

Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.

Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.

It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.

Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.

We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.

Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt. This ingredient has many purposes in skincare: thickener, emulsifier, and exfoliator.

You'll most likely find this ingredient in cleansers where it is used to create a gel-like texture. As an emulsifier, it also prevents ingredients from separating.

You might see people debate whether Sodium Chloride is comedogenic, but there actually haven't been any comedogenic tests done on it. Either way, the overall formulation of a product matters a lot more than any single ingredient.

You might see this ingredient used in scrubs as a primary exfoliating ingredient.

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. Remember to stay hydrated!

This ingredient is a combination of red, black, and yellow iron oxide pigments. This combination of colors is usually found in foundation, because it results in a "skin" color.

The EU typically uses CI numbers for colorants when applicable, such as CI 77489. In the US, iron oxides are regulated as color additives and "iron oxides" is the most commonly used name in US cosmetic practice.

A 2021 paper looked at skincare formulations containing iron oxides and found that they reduced transmission of blue light when measured optically. In simple terms, the pigment particles helped block or scatter part of the visible light spectrum in lab testing and the authors suggest this could translate into better protection against blue-light-related skin effects.

There is also clinical and experimental research showing that tinted products containing iron oxides can reduce visible light-induced pigmentation:

Please note, whether a product reduces visible or blue light depends on things like:

In the EU's CosIng database, iron oxides are only listed as a colorant. CosIng groups ingredients by their main cosmetic role, such as colorant, preservative, or UV filter.

Though studies say iron oxides can "attenuate blue light", they're describing an optical property and not an officially recognized cosmetic function.

So CosIng isn’t contradicting the research. It’s just classifying iron oxides by what they officially are: pigments that add color.

Similar Comparisons

Connected reading

Helpful context for this guide

Source-derived material selected through this article’s indexed topics.

P

About the author

Peptide Therapy Guide Editorial Team

Editorial team for Peptide Therapy Guide.

View all articles →