Skin science article
Haruharu Wonder Black Rice Pure Mineral Relief Daily Sunscreen SPF 50+ PA++++ Versus Paula's Choice Resist Super-Light Wrinkle Defense SPF 30
Haruharu Wonder Black Rice Pure Mineral Relief Daily Sunscreen SPF 50+ PA++++ Versus Paula's Choice Resist Super-Light Wrinkle Defense SPF 30 This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. This mineral sunscreen covers the ful
Haruharu Wonder Black Rice Pure Mineral Relief Daily Sunscreen SPF 50+ PA++++ Versus Paula's Choice Resist Super-Light Wrinkle Defense SPF 30
This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.
This mineral sunscreen covers the full UV range and blocks ~97% of UVB at SPF 30.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Zinc Oxide
Cyclohexasiloxane
Butyloctyl Salicylate
Propanediol
Propylheptyl Caprylate
Caprylyl Methicone
Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
Methyl Methacrylate Crosspolymer
Niacinamide
Methyl Trimethicone
Isododecane
Stellaria Media Extract
Helianthus Annuus Flower Extract
Vaccinium Vitis-Idaea Fruit Extract
Oryza Sativa Extract
Bellis Perennis Flower Extract
Houttuynia Cordata Extract
Oryza Sativa Bran Oil
Sodium Hyaluronate
Hydrogenated Lecithin
Disteardimonium Hectorite
Magnesium Sulfate
Triethoxycaprylylsilane
Butylene Glycol
1,2-Hexanediol
Polyglyceryl-2 Dipolyhydroxystearate
Polymethylsilsesquioxane
Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
Glyceryl Caprylate
Caprylyl Glycol
Ethylhexylglycerin
Tocopherol
Glycerin
Moringa Oleifera Seed Oil
Ceramide NP
Phytosphingosine
Phenethyl Alcohol
Sodium Chloride
Disodium Phosphate
Potassium Chloride
Potassium Phosphate
Water, Zinc Oxide, Cyclohexasiloxane, Butyloctyl Salicylate, Propanediol, Propylheptyl Caprylate, Caprylyl Methicone, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Methyl Methacrylate Crosspolymer, Niacinamide, Methyl Trimethicone, Isododecane, Stellaria Media Extract, Helianthus Annuus Flower Extract, Vaccinium Vitis-Idaea Fruit Extract, Oryza Sativa Extract, Bellis Perennis Flower Extract, Houttuynia Cordata Extract, Oryza Sativa Bran Oil, Sodium Hyaluronate, Hydrogenated Lecithin, Disteardimonium Hectorite, Magnesium Sulfate, Triethoxycaprylylsilane, Butylene Glycol, 1,2-Hexanediol, Polyglyceryl-2 Dipolyhydroxystearate, Polymethylsilsesquioxane, Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Glyceryl Caprylate, Caprylyl Glycol, Ethylhexylglycerin, Tocopherol, Glycerin, Moringa Oleifera Seed Oil, Ceramide NP, Phytosphingosine, Phenethyl Alcohol, Sodium Chloride, Disodium Phosphate, Potassium Chloride, Potassium Phosphate
Cyclopentasiloxane
PEG-12 Dimethicone
PEG/PPG-18/18 Dimethicone
Lauroyl Lysine
Trihydroxystearin
Dimethicone Crosspolymer
Resveratrol
Quercetin
Epigallocatechin Gallate
Tocopheryl Acetate
Tetrahexyldecyl Ascorbate
Adenosine
Bisabolol
Salix Nigra Bark Extract
Punica Granatum Extract
Haematococcus Pluvialis Extract
Hydrolyzed Corn Starch
Polysorbate 80
Hydrated Silica
C12-15 Alkyl Benzoate
Isopropyl Titanium Triisostearate
Hexylene Glycol
Iron Oxides
Phenoxyethanol
Water, Cyclopentasiloxane, Zinc Oxide, PEG-12 Dimethicone, PEG/PPG-18/18 Dimethicone, Lauroyl Lysine, Sodium Chloride, Trihydroxystearin, Dimethicone Crosspolymer, Resveratrol, Quercetin, Epigallocatechin Gallate, Tocopheryl Acetate, Tetrahexyldecyl Ascorbate, Adenosine, Bisabolol, Salix Nigra Bark Extract, Punica Granatum Extract, Haematococcus Pluvialis Extract, Hydrolyzed Corn Starch, Polysorbate 80, Hydrated Silica, Triethoxycaprylylsilane, C12-15 Alkyl Benzoate, Isopropyl Titanium Triisostearate, Caprylyl Glycol, Hexylene Glycol, Ethylhexylglycerin, Iron Oxides, Phenoxyethanol
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.
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.
Triethoxycaprylylsilane is a silicon-based surface modifier that makes sunscreens feel silky and makeup stay put.
Its main job is to coat mineral particles like titanium dioxide, zinc oxide, and color pigments in a thin, oily layer so they spread smoothly, don't clump, and stick to skin better.
This ingredient is typically used at low levels (up to 2.5% in eyeshadow and 1% in lipstick).
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.