Oasea Protective Tinted Mineral Matte Sunscreen SPF 50 PA++++ Versus Beauty of Joseon Daily Tinted Fluid Sunscreen SPF 40

Oasea Protective Tinted Mineral Matte Sunscreen SPF 50 PA++++ Versus Beauty of Joseon Daily Tinted Fluid Sunscreen SPF 40

This hybrid sunscreen covers the full UV range, though its SPF isn't confirmed on file yet.

This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 40.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Zinc Oxide

Isononyl Isononanoate

Caprylyl Methicone

Butyloctyl Salicylate

Methyl Trimethicone

Trimethylsiloxysilicate

Isododecane

Dipropylene Glycol

Acrylates Copolymer

CI 77891

Silica

Glycerin

Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone

Acrylates/Polytrimethylsiloxymethacrylate Copolymer

Disteardimonium Hectorite

Polyglyceryl-2 Isostearate

Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer

Polyhydroxystearic Acid

Coco-Caprylate/Caprate

Polyglyceryl-6 Polyricinoleate

Magnesium Sulfate

Sorbitan Sesquioleate

1,2-Hexanediol

Triethoxycaprylylsilane

CI 77492

Dimethicone

Cyclopentasiloxane

Aluminum Hydroxide

Dimethicone/Vinyl Dimethicone Crosspolymer

Stearic Acid

Sorbitan Isostearate

Hydroxyacetophenone

Polyglyceryl-6 Polyhydroxystearate

Polyglyceryl-2 Dipolyhydroxystearate

Butylene Glycol

Pentylene Glycol

Anthemis Nobilis Flower Extract

CI 77491

PEG-9 Polydimethylsiloxyethyl Dimethicone

Trisodium Ethylenediamine Disuccinate

Polyglycerin-6

Octyldodecanol

Lactic Acid

Polypropylsilsesquioxane

CI 77499

Polyglyceryl-4 Isostearate

Rosmarinus Officinalis Leaf Extract

Palmitoyl Tetrapeptide-7

Isopropyl Titanium Triisostearate

Squalane

Lilium Candidum Flower Water

Chrysin

Tocopherol

Chondrus Crispus Extract

Niacinamide

Sodium Hyaluronate

Saccharum Officinarum Extract

Ascorbyl Palmitate

Hydrolyzed Algae Extract

Phenoxyethanol

Water, Zinc Oxide, Isononyl Isononanoate, Caprylyl Methicone, Butyloctyl Salicylate, Methyl Trimethicone, Trimethylsiloxysilicate, Isododecane, Dipropylene Glycol, Acrylates Copolymer, CI 77891, Silica, Glycerin, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Acrylates/Polytrimethylsiloxymethacrylate Copolymer, Disteardimonium Hectorite, Polyglyceryl-2 Isostearate, Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, Polyhydroxystearic Acid, Coco-Caprylate/Caprate, Polyglyceryl-6 Polyricinoleate, Magnesium Sulfate, Sorbitan Sesquioleate, 1,2-Hexanediol, Triethoxycaprylylsilane, CI 77492, Dimethicone, Cyclopentasiloxane, Aluminum Hydroxide, Dimethicone/Vinyl Dimethicone Crosspolymer, Stearic Acid, Sorbitan Isostearate, Hydroxyacetophenone, Polyglyceryl-6 Polyhydroxystearate, Polyglyceryl-2 Dipolyhydroxystearate, Butylene Glycol, Pentylene Glycol, Anthemis Nobilis Flower Extract, CI 77491, PEG-9 Polydimethylsiloxyethyl Dimethicone, Trisodium Ethylenediamine Disuccinate, Polyglycerin-6, Octyldodecanol, Lactic Acid, Polypropylsilsesquioxane, CI 77499, Polyglyceryl-4 Isostearate, Rosmarinus Officinalis Leaf Extract, Palmitoyl Tetrapeptide-7, Isopropyl Titanium Triisostearate, Squalane, Lilium Candidum Flower Water, Chrysin, Tocopherol, Chondrus Crispus Extract, Niacinamide, Sodium Hyaluronate, Saccharum Officinarum Extract, Ascorbyl Palmitate, Hydrolyzed Algae Extract, Phenoxyethanol

Isopropyl Myristate

Caprylic/Capric Triglyceride

Neopentyl Glycol Diheptanoate

Ethylhexyl Isononanoate

Alcohol Denat.

Polyglyceryl-3 Polyricinoleate

C12-15 Alkyl Benzoate

Propanediol

Methyl Methacrylate Crosspolymer

Hydrogenated Olive Oil Unsaponifiables

Artemisia Capillaris Extract

Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate

Stearalkonium Hectorite

Undecane

Tridecane

Zinc Oxide, Water, Butyloctyl Salicylate, Isopropyl Myristate, Coco-Caprylate/Caprate, Caprylic/Capric Triglyceride, Neopentyl Glycol Diheptanoate, CI 77492, Ethylhexyl Isononanoate, Alcohol Denat., Polyglyceryl-3 Polyricinoleate, Butylene Glycol, C12-15 Alkyl Benzoate, Propanediol, Silica, Methyl Methacrylate Crosspolymer, CI 77491, Stearic Acid, Polyglyceryl-6 Polyhydroxystearate, Hydrogenated Olive Oil Unsaponifiables, Artemisia Capillaris Extract, Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate, Stearalkonium Hectorite, Undecane, 1,2-Hexanediol, Polyglyceryl-6 Polyricinoleate, Hydroxyacetophenone, Tridecane, Isopropyl Titanium Triisostearate, Polyglycerin-6, Tocopherol, Ascorbyl Palmitate, CI 77499

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Alternatives

Ingredients Explained

These ingredients are found in both products.

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

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.

It is a:

Humectant, drawing moisture into the skin

Emollient, helping to soften skin

Solvent, dispersing and stabilizing formulas

Preservative booster, enhancing the antimicrobial activity of other preservatives

Ascorbyl Palmitate is a fat-soluble form of vitamin C (Ascorbic Acid) made by combining it with palmitic acid.

It is able to blend easily into creams and oil-based formulas because it dissolves in oils rather than water.

As you may know, regular vitamin C is notorious for breaking down when exposed to sunlight and air. Ascorbyl Palmitate is more stable and degrades at a slower rate.

Research on whether it converts efficiently into active vitamin C once it's applied on your skin is still limited.

Some in-vitro studies suggest it may support collagen production, but it is not considered one of the stronger vitamin C derivatives, like:

Due to the palmitic acid base, this ingredient may not be fungal acne safe. Comedogenic studies have also shown this ingredient to have a rating of 2.

It's also worth keeping in mind that comedogenic and irritancy ratings are tested on individual ingredients, not finished formulas. The final product's formulation, concentration, and other ingredients all play a role in how something actually behaves on your skin.

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

Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.

Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.

Butyloctyl Salicylate is a chemical UV filter structurally similar to octisalate. It is a photostabilizer, SPF booster, emollient and solvent. This ingredient helps evenly spread out ingredients.

According to a manufacturer, it is suitable for pairing with micro Titanium Dioxide, Zinc Oxide, and pigments.

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

Ci 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.

CI 77492 is also hydrated iron III oxide. It's sole purpose is to give a yellow hue to products.

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.

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.

Coco-Caprylate/Caprate is a lightweight ester created from coconut oil fatty acids, caprylic acid, and capric acid.

It is an emollient that helps soften skin and reduce transepidermal water loss (TEWL). What sets it apart from heavier emollients is its ultralight, non-greasy feel.

Once applied, this ingredient dries down quickly and leaves a dry, silky finish behind. This also helps improve spreadability and texture.

This ingredient has an excellent safety-record and is non-irritating.

Typical concentrations for cosmetics range from 0.5-62%.

Research on Malassezia growth found no growth on fatty acid esters with chain lengths shorter than 12 carbons (it prefers C11-24).

Since Coco-Caprylate/Caprate is built on C8 and C10 fatty acids, it is out of the range that Malassezia metabolizes, and therefore safe for fungal acne.

Hydroxyacetophenone is a small phenolic molecule that earns its place in a formulas as an antioxidant and preservative booster.

As a phenol, it is able to neutralize free radicals to protect both the product and the skin from oxidative stress.

Though it can't kill microbes on its own, it works as a good supporting agent when combined with other preservatives like Phenoxyethanol or 1,2-Hexanediol.

This ingredient naturally occurs as piceol in Norwegian spruce needles (~0.4-1.1% dry weight and in cloudberries). Though the cosmetic-grade material is synthesized for purity and consistency.

You'll usually see it used at low levels and suppliers recommend up to 1% added to a water phase.

Safety testing was done at concentrations like 0.05% in SPF products and 0.5% in a Human Repeated Insult Patch Test. The safety evidence is assuring; this ingredient is safe for cosmetics in current use and also holds safety status as a food flavoring as well.

An honest caveat: the "soothing" and "anti-inflammatory" claims come mostly from supplier marketing rather than published clinical trials. The Cosmetic Ingredient Review's own literature search found no useful efficacy studies on this ingredient.

So the antioxidant and preservative-boosting roles are the well supported ones while the calming benefit is plausible but thinly evidenced.

Overall, this is a well-tolerated, low-irritation multitasker that quietly helps a formula stay fresh and stable.

This ingredient is an synthetic emollient, emulsifier, and used as a surface treatment for pigment particles (like iron oxides or titanium dioxide).

The “triisostearate” part of this ingredient is an ester derived from isostearic acid, a long-chain fatty acid.

It "wraps" these ingredients in a form of slippery jacket so they disperse more evenly in oils, glide better on skin, and stick longer without smudging.

Human repeat insult patch tests on foundations containing this ingredient found no sensitization concerns.

Since isostearic acid is a C18 fatty acid, it falls within the carbon chain length that Malassezia can potentially metabolize. This is why this ingredient may not be fungal acne safe.

We don't have a description for Polyglycerin-6 yet.

Polyglyceryl-6 Polyhydroxystearate isn't fungal acne safe.

Polyglyceryl-6 Polyricinoleate isn't fungal acne safe.

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.

Stearic 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.

Tocopherol 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.

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!

Zinc Oxide (ZO) is a mineral broad-spectrum UV filter and the broadest-spectrum filter recognized by the FDA. It covers everything from UVB through to long-wave UVA.

On top of sun protection, it has skin protectant and skin-soothing properties too.

Here's a myth worth busting: mineral filters are usually described as working by "reflecting" or "bouncing" UV off your skin.

That's mostly not true: when researchers actually measured it, ZO and Titanium Dioxide reflect only about 4-5% of UV (less than SPF 2 worth of protection).

The vast majority of the work (~95%) is done by absorption, similar to chemical UV filters. ZO is a semiconductor that absorbs UV photos through its energy band gap.

So the old "physical blocker vs. chemical absorber" framing is really an oversimplification.

Zinc Oxide is one of the most effective broad-spectrum UV filters out there. It protects across UVB, UVA2, and UVA1 with a flat, even absorption curve across the whole UVA-UVB range.

That uniform UVA coverage is its standout feature; titanium dioxide skews more toward UVB as its particle size drops so ZO gives more consistent and extended UVA protection.

It's also very photostable. As an inorganic oxide, ZO doesn't break down in sunlight the way some organic filters can, so it holds up over a day of wear.

This ingredient is gentle and soothing, making it go-to for sunscreens aimed at sensitive skin, rosacea, or ecezma-prone skin, babies, and children.

It's also unlikely to cause the "eye sting" that some sunscreen ingredients are known for, and regulatory agencies broadly consider it non-toxic and safe for topical use.

Beyond sun protection, ZO is also a recognized OTC skin protectant. It forms a breathable barrier that shields skin from moisture and irritation while supporting healing. This is why you'll see it as a classic active in diaper rash creams.

The only downside to ZO is that it can leave a visible white cast, especially on deeper skin tones. This is the main reason mineral sunscreens have historically felt less cosmetically elegant than chemical or hybrid formulas.

Zinc Oxide comes in both non-nano and nano forms. The dividing line is 100nm and anything under is classified as a nanomaterial by the EU.

The nano version scatters less visible light which cuts down white case and gives a lighter, more wearable texture.

Another thing worth understanding about formulation:

Uncoated ZO has some inherent photocatalytic activity. This just means it can generate reactive oxygen species under UV. It's exactly why cosmetic-grade ZO is almost always surface-coated; this coating suppresses that reactivity and improves how the powder disperses and feels.

A well-formulated coated ZO largely sidesteps this issue.

Zinc Oxide is commonly used anywhere from 10% up to the regulatory maximum in sunscreens (25%).

Mineral-only broad-spectrum products often land in the 15-25% range to hit higher SPF and UVA values. Keep in mind SPF performance depends heavily on particle size, dispersion, and the rest of the formula, and not just the percentage.

As an OTC skin protectant like diaper creams, ZO typically runs higher at roughly 10-40%.

This ingredient is generally easy to work with and doesn't photodegrade.

The only thing to know is that uncoated ZO can be a bit reactive in a formula.

Under UV, it can break down sensitive ingredients like other actives or UV filters. This is another reason coated versions are standard. ZO can also react with very acidic ingredients or throw off stability of some creams. A good formula will get around this with the right coatings and dispersion.

The EU's Scientific Committee on Consumer Safety has concluded that ZO nanoparticles "can be considered to not pose any risk of adverse effects in humans after application on healthy, intact or sunburnt skin".

You might hear that ZO is "toxic"; this is because an in-vitro (test tube) study suggested micronized ZO had potential phototoxicity. In vivo (human) investigations have disputed this and the results have come back reassuring.

So does ZO penetrate skin? The short answer is no, not in any way that matters.

The most relevant evidence comes from real-world human studies: in one, volunteers applied ZO nanoparticle sunscreen hourly for six hours and daily for five days. The advanced imaging showed the particles stayed on the surface and never reached the living epidermis, and no cellular toxicity was found.

Other in-vivo and ex-vivo work agree; ZO nanoparticles don't cross the stratum corneum, even on flexed, massaged, or barrier-impaired skin.

A small amount of solubilized zinc ions can dissolve off the particles and enter the upper skin. But the quantities are tiny compared to the zinc already naturally present in your body, and studies haven't found this to cause local toxicity.

The sunscreen bans you've heard of (like Hawaii's) are aimed at two chemical filters, Oxybenzone and Octinoxate. ZO itself it not banned and is often recommended instead.

So far, there's no solid evidence that any form of ZO harms reefs. It is an ongoing and active area of study, and worth keeping an eye on.

If you're traveling somewhere with these rules, a non-nano mineral sunscreen is the safe bet.

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