If you've ever wanted to try Japanese skincare, you've probably heard of Japanese sunscreens and the brand Biore. It's one of Japan's most popular sunscreen brands. The Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition is a special version of the classic Biore UV Aqua Rich Watery Essence, featuring the same beloved formula in limited-edition packaging.
What’s UV?
UV stands for ultraviolet. It refers to a specific range of wavelengths within the electromagnetic spectrum. Although UV rays are invisible to the human eye, they are very much present. There are three main types of ultraviolet radiation—UVA, UVB, and UVC—each with different wavelengths and unique properties.
UVA, UVB, and UVC – What Do They Do, and Where Can You Find Them?
Most people have heard of UVA and UVB, but what about UVC—or the difference between UVA1 and UVA2?
Let's start with the shortest wavelengths. UVC (100–280 nm) is naturally present in sunlight, but it is almost completely absorbed by the Earth's ozone layer, so it doesn't normally reach the Earth's surface. UVC radiation is highly effective at killing bacteria, viruses, and other microorganisms, which is why it is widely used in germicidal lamps.
You may wonder why these lamps appear to emit visible light if UVC itself is invisible. The blue or purple glow doesn't come from the UVC radiation itself—it comes from materials inside the lamp that emit visible light. This glow simply indicates that the lamp is operating. Despite the visible light, you should never remain in a room while an unshielded UVC lamp is on, as direct exposure to UVC radiation can damage your skin and eyes. This technology is commonly used in laboratories, hospitals, and other environments where disinfection is essential.
Next is UVB (280–315 nm). A simple way to remember its effects is that the "B" stands for "Burn." UVB is primarily responsible for sunburn because it affects the epidermis, the outermost layer of the skin. However, UVB also plays an important role in the production of vitamin D, which is essential for maintaining healthy bones and supporting a properly functioning immune system. A vitamin D deficiency can contribute to conditions such as osteoporosis.
Finally, there's UVA (315–400 nm). The "A" stands for "Aging" because UVA is the primary cause of premature skin aging. Unlike UVB, UVA penetrates much deeper into the skin, reaching both the epidermis and the dermis. Another important difference is that UVA can pass through glass, meaning you can still be exposed to it indoors or while driving.
Both UVA and UVB can damage skin cells. Prolonged exposure increases the risk of skin cancer, accelerates premature skin aging, and contributes to oxidative stress. That's why wearing sunscreen every day—even when you're indoors near windows or driving—is an important part of protecting your skin.
Should You Wear Sunscreen at Home?
We already know that UVA rays can penetrate glass, but does that mean you should wear sunscreen indoors?
The answer is yes—especially if you spend a lot of time near windows. If you work by a window or sit in direct sunlight for extended periods, applying sunscreen in the morning is a good idea. You can also reduce UV exposure by installing UV-protective window film or simply keeping your blinds or curtains closed during the sunniest hours of the day.
Ultimately, the decision is up to you and your daily routine. Personally, I keep my blinds closed throughout the morning because my windows face east. By the afternoon, the direct sunlight has mostly disappeared. Since I apply sunscreen every morning and reapply it throughout the day, I already have protection in place by the time the afternoon sun reaches my windows.
What's the Difference Between Mineral and Chemical Sunscreens?
There are two main ways to classify sunscreens: mineral (inorganic) and chemical (organic).
Mineral sunscreens use inorganic UV filters—most commonly zinc oxide and titanium dioxide. These ingredients provide broad-spectrum protection, especially when used together. One drawback is that they can leave a white cast, particularly on deeper skin tones, although many modern formulations have significantly reduced this effect.
Chemical sunscreens use organic, carbon-based UV filters. These filters are typically lightweight, spread easily across the skin, and generally don't leave a white cast. Modern formulations often combine multiple UV filters to provide broad-spectrum protection while maintaining an elegant, comfortable finish.
Neither type is inherently better than the other. The best sunscreen is the one you'll apply generously, reapply as needed, and wear consistently every day.
For some people—especially those with post-inflammatory hyperpigmentation (PIH) or melasma—tinted mineral sunscreens containing iron oxides may provide additional protection against visible light, which can contribute to hyperpigmentation. In these cases, a tinted sunscreen with iron oxides may offer an extra layer of protection beyond UV radiation alone.
Sunscreen Reapplication
Most sunscreen brands recommend reapplying sunscreen every two to three hours. The reason is simple: throughout the day, sunscreen gradually wears off. We sweat, touch our faces, wear clothing that rubs against our skin, and wipe our skin with towels or tissues. All of these everyday activities can remove part of the protective layer, reducing its effectiveness.
It's also important to remember that everyone responds differently to UV exposure. One person's skin may start to burn after just five minutes in the sun without protection, while someone else may be able to stay outside much longer before experiencing the same effect. Factors such as skin tone, UV index, time of day, altitude, and individual sensitivity all influence how quickly UV damage can occur.
As a general rule, reapplying sunscreen every two hours—or every two to three hours, depending on your level of sun exposure—helps maintain consistent protection throughout the day. If you're swimming, sweating heavily, or drying your skin with a towel, you should reapply even sooner, following the instructions on your sunscreen's label.
Japanese vs. Korean Sunscreens: Which Is Better?
I believe both Japan and Korea produce excellent sunscreens, but neither country gets every formula right. There are outstanding products from both, as well as some I wouldn't personally recommend. Skincare is highly individual, and a sunscreen that works perfectly for one person may not suit someone else.
One difference I've noticed is that many Japanese sunscreens contain a higher amount of alcohol. That's not necessarily a bad thing—alcohol can help create lightweight, fast-drying formulas with elegant finishes. However, these sunscreens often feel drier on the skin than many Korean alternatives, which may not be ideal for people with dry or sensitive skin.
Japanese brands are also known for their innovations. For example, Athlizm IR introduced impressive technology designed to maintain sunscreen performance under harsh conditions. While the concept sounded excellent on paper, the formula simply didn't work well for my skin.
Korean sunscreens, on the other hand, often place a stronger emphasis on the skincare experience. In addition to providing UV protection, many formulas include moisturizing, soothing, or barrier-supporting ingredients, making sunscreen feel like an extension of a daily skincare routine rather than just a protective product.
Ultimately, neither Japanese nor Korean sunscreens are inherently better. The best choice depends on your skin type, preferences, and the finish you're looking for. If you prefer lightweight, water-resistant formulas, you may enjoy Japanese sunscreens. If you're looking for a more hydrating, skincare-focused formula, Korean sunscreens may be a better fit.
Meet the Brand: Biore
Biore is a Japanese skincare brand best known for its sunscreen range. It is owned by Kao Corporation, which was founded in 1887 by Tomiro Nagase. Biore itself was introduced in 1980, initially focusing on facial cleansers. Over the years, however, the brand has become especially well known for its innovative sunscreen formulas, particularly the popular UV Aqua Rich line.
Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition – Packaging
The Biore UV Aqua Rich Watery Essence Sunscreen comes in packaging that may look different if you’re used to shopping for Korean skincare. Instead of a traditional cardboard box, it features a plastic tube attached to a thick paper backing that seals the product. This type of packaging is common among Japanese sunscreen brands and allows all of the essential product information and instructions to be printed on the paper backing.
I've noticed the same style of packaging on other Japanese sunscreens, including the Nivea UV Deep Protect & Care Tone-Up Essence, so it seems to be a fairly common approach among Japanese brands.
Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition - Texture & Scent
One of the biggest strengths of the Biore UV Aqua Rich Watery Essence Sunscreen is its lightweight, gel-like texture. The formula is very fluid, spreads effortlessly across the skin, and feels almost weightless once applied. It also layers well under makeup without causing pilling, making it an excellent option for everyday wear.
On the downside, it has a fairly typical Japanese sunscreen texture, with a noticeable amount of alcohol. Even though this Botanical Peony Edition has a strong floral fragrance, you can still detect the alcohol scent when you first apply it. I'm generally not a fan of fragranced skincare, but in this case, I find the floral scent much more pleasant than the smell of alcohol alone.
The formula is completely transparent, so it doesn't leave a white cast or contain any visible pigment.
Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition - UV Protection
The Biore UV Aqua Rich Watery Essence Sunscreen provides broad-spectrum sun protection with SPF 50+ against UVB rays and PA++++, the highest PA rating, for strong UVA protection. This makes it well suited for everyday use as well as prolonged outdoor activities when applied and reapplied as directed.
Does Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition - Water-resistance
Yes. The Biore UV Aqua Rich Watery Essence Sunscreen is water-resistant. According to the product information listed by YesStyle, it provides up to 80 minutes of water resistance. If you're swimming, sweating heavily, or towel-drying your skin, remember to reapply the sunscreen afterwards to maintain effective protection.
Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition - Ingredients
Water, Alcohol, Ethylhexyl Methoxycinnamate, Lauryl Methacrylate/Sodium Methacrylate Crosspolymer, C12-15 Alkyl Benzoate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Dimethicone, Ethylhexyl Triazone, Silica Dimethyl Silicate, Dipropylene Glycol, Xylitol, Dextrin Palmitate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Dimethicone/Vinyl Dimethicone Crosspolymer, Polysilicone-9, Glyceryl Stearate, Aminomethyl Propanol, Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, Agar, Isoceteth-20, C30-45 Alkyl Methicone, Polyvinyl Alcohol, C30-45 Olefin, Sodium Hydroxide, Butylene Glycol, Propylene Glycol, Sodium Hyaluronate, Royal Jelly Extract, Citrus Aurantium Dulcis (Orange) Fruit Extract, Citrus Grandis (Grapefruit) Fruit Extract, Cucumis Melo (Melon) Fruit Extract, Phenoxyethanol, Disodium EDTA, BHT, Fragrance (Parfum)
Source: translated from the packaging
Original INCI (scanned from the packaging):
水、エタノール、メトキシケイヒ酸エチルヘキシル、（メタクリル酸ラウリル／メタクリル酸Na）クロスポリマー、安息香酸アルキル（C12-15）、ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジン、ジエチルアミノヒドロキシベンゾイル安息香酸へキシル、ジメチコン、エチルへキシルトリアゾン、ジメチルシリル化シリカ、DPG、キシリトール、パルミチン酸デキストリン、（アクリレーツ／アクリル酸アルキル（C10-30））クロスポリマー、（ジメチコン／ビニルジメチコン）クロスポリマー、ポリシリコーン-9、ステアリン酸グリセリ＊AMP、（ビニルジメチコン＞メチコンシルセスキオキサン）クロスポリマー、カンテン、インセテス-20、アルキル（C30-45）メチコン、ポリビニルアルコール、オレフィン(c30-45)、水酸化Na、BG、PG、ヒアルログ※Na、ローヤルゼアーエキス、オレンジ果実エキス、グホンプフルーツ果実エキス、ンモン果実玉ギス、フェノキシエタノール、EDTA-2Na、BHT、香料
Water is typically listed in cosmetic products as "Aqua" or "Eau". It's a solvent, but it's not your regular drinking water. In skin care products, water must meet specific purity standards to ensure it is clean and free of impurities, including minerals, microorganisms, and other substances. Water usually makes up the majority of the product's content. Alcohol is an immense topic in skincare. Alcohol can be good or bad for your skin, but sometimes the amount makes a poison. Alcohol, after all, is a prominent solvent. It makes active substances penetrate the skin more deeply. This effect has its cost - the skin is getting a bit irritated. Some substances can be dissolved only in alcohol. This ingredient has antibacterial properties. It works as a preservative by preventing microorganisms from growing in the product. It has some awful sides, too - it can dry your skin, mainly if we use it in large amounts. Sensitive skin is not a fan of this ingredient.
Ethylhexyl Methoxycinnamate or Octinoxate is a sunscreen agent. It protects your skin from UVB radiation (280-320 nm), but it has its peak at 310nm. It's a common ingredient in waterproof sunscreens. Lauryl Methacrylate/Sodium Methacrylate Crosspolymer is a polymer that works as a film-forming ingredient in sunscreen formulas. C12-15 Alkyl Benzoate is an emulsifier and emollient. It prevents skin from TEWL (transepidermal water loss), it makes skin soft, and it prevents the product from being too oily. It's useful in UV-protecting formulas. Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine is quite a hard name to remember, that's why you can find people talking about this ingredient by calling it Tinosorb S. It's one of the newer types of sunscreen agents and one of the strongest ones. It's a chemical sunscreen that protects skin from UVA (315-400 nm) & UVB (280-315 nm), and its peak is high. It's a stable sunscreen that works with other sun-protecting substances to protect against early photodegradation.
Diethylamino Hydroxybenzoyl Hexyl Benzoate or Uvinul A Plus is a sun-protecting agent. It covers the UVA range (320-400 nm), and its peak of protection is 354 nm. Dimethicone is a silicone and a polymer. Ethylhexyl Triazone or Uvinul T 150 is a sun-protecting agent. It covers the UVB range (280-320nm). Its peak is at 314 nm. Silica Dimethyl Silylate is a thickener. Dipropylene Glycol is a solvent with moisturising properties. Xylitol is a sugar with humectant properties. Dextrin Palmitate is a gellant and binding ingredient. Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer and a quite large molecule. It works as a thickener and emulsion stabiliser.
Dimethicone/Vinyl Dimethicone Crosspolymer is a synthetic powder that absorbs sebum. You can usually find it in makeup for its flawless finish. Not every oily skin will enjoy it. Polysilicone-9 is a synthetic polymer with film-forming properties. You can spot it quite often in haircare products that make brushing your hair easier. Glyceryl Stearate is an emollient with emulsifying properties. Aminomethyl Propanol takes care of the correct pH of the product. Higher amounts of this ingredient can be irritating. Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer is a thickener that leaves an occlusive film on the surface of the skin to prevent TEWL (transepidermal water loss).
Agar is a polysaccharide derived from seaweed. It's a vegan-friendly thickener. Isoceteth-20 is a nonionic surfactant and oil-in-water emulsifier. C30-45 Alkyl Methicone makes skin soft to the touch. It's mostly used in makeup and sunscreens. Polyvinyl Alcohol is a synthetic ingredient. It's a thickener that creates a delicate film on the surface of the skin. It makes the product easier to apply. Sodium Hydroxide is a pH adjuster. Butylene Glycol is a common ingredient in products. It's not only a solvent. We use butylene glycol because it helps the active ingredients penetrate, protects products from drying, and moisturises the skin and hair. This ingredient can prevent hair loss and strengthen hair. Propylene Glycol is a humectant and solvent. It creates a delicate film on the surface of the skin to prevent TEWL (transepidermal water loss).
Sodium Hyaluronate or sodium salt of hyaluronic acid. It's a form of hyaluronic acid and naturally occurs in the skin. Sodium hyaluronate has strong water-binding properties. Sodium hyaluronate combined with elastin and collagen is like a scaffolding for the skin. It has hydrating properties and leaves a hydrating film on the skin, but sodium hyaluronate prevents skincare products from drying. Royal Jelly Extract is a nourishing ingredient with anti-inflammatory and antimicrobial properties. It's a fluid secretion produced by worker bees, so it's not a vegan-friendly ingredient. Citrus Aurantium Dulcis (Orange) Fruit Extract has antiseptic properties and adds scent to the product.
Citrus Grandis (Grapefruit) Fruit Extract is an astringent rich in flavonoids and vitamin C. Cucumis Melo (Melon) Fruit Extract is an antioxidant. You might know this fruit as a honeydew melon or cantaloupe. It's a source of vitamins C and A, zinc, lycopene and carotene. It has anti-ageing properties. Phenoxyethanol is a preservative that lots of people try to demonise. The truth is that Phenoxyethanol is gentle on the skin and has antiseptic properties. Disodium EDTA neutralises metal ions in the formula to keep products fresh. BHT, or Butylated Hydroxy Toluene, is quite a controversial ingredient. This synthetic substance is an antioxidant and preservative - in skincare up to 0,1% in a product. You don't have to be scared of this preservative. According to CIR (Cosmetic Ingredient Review), it's a safe ingredient. Fragrance (Parfum) is a composition of scents. It can cause allergic reactions.
How to Use Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition?
I'm not a fan of heavily scented products, but I finally decided to give Biore another try. This sunscreen is widely loved around the world, but my personal experience with Japanese sunscreens has been somewhat mixed, mostly because many of them tend to feel drying on my skin.
I'm not someone who demonizes alcohol in skincare—the key is finding the right balance. In this case, it seems Biore has achieved that balance quite well, as this sunscreen doesn't dry out my skin.
How Does Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition Work?
I know a lot of people love Biore sunscreens, but for years I avoided them because of my previous experience with Athlizm IR and a few other Japanese sunscreens I had tried before. While there are definitely some Japanese sunscreens worth mentioning, that's a topic for another time.
The gel-like texture is ideal for my skin. It's one of those sunscreens you genuinely don’t feel once it’s on. It works well under makeup, and it doesn’t leave white marks on black clothing. I can confidently say it’s summer goth approved. I don’t apply it on my eyelids, but even when I use it close to my eyes, it doesn’t cause irritation or make me tear up, which is a good sign. As always, experiences will vary—some people will love it, while others won’t.
Read more: Kao Biore Athlizm Sunburn Protect Milk Spf 50+ Pa ++++
One of the key things I want to mention is Biore’s Micro Defense Technology. From what I understand, this system is based on micro-gel capsules that spread evenly across the skin to create a uniform protective layer, helping reduce gaps in UV coverage and improving overall sun protection.
This review is going to be relatively short because, for me, the product has more advantages than disadvantages. The version I’m using is an Asian-market formula (I’ve seen it described as either Taiwan or Hong Kong, depending on the source). In general, I tend to prefer Asian versions over the Biore US/EU formulations, even though I own both EU versions and plan to compare them in the future.
Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition – Skin Compatibility
The Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition is generally best suited for oily and combination skin types. Its lightweight, fast-absorbing texture works well for those who prefer a non-greasy finish and don’t enjoy heavy or occlusive formulas.
If you have sensitive skin, it’s a good idea to perform a patch test first. The presence of fragrance and other sensitizing ingredients may be irritating for some people, especially those who are prone to reactivity or prefer fragrance-free skincare.
Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition - Pros & Cons
Pros:
- Extremely lightweight, almost imperceptible on the skin
- Gel-like texture that spreads easily and absorbs quickly
- Works well under makeup without pilling
- Water-resistant with high UV protection (SPF 50+ PA++++)
- No white cast and no visible tint
Cons:
- Noticeable fragrance, which may not suit sensitive skin or those who prefer fragrance-free products
- Contains alcohol, which may feel drying for very dry or reactive skin types
- Not ideal for those who prefer richer, more nourishing sunscreen textures
Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition - Alternatives
If you're looking for a less heavily scented alternative, one option is the classic Biore UV Aqua Rich Watery Essence SPF 50+ PA++++*. However, it still contains fragrance, with a noticeable citrus scent.
Biore also offers a fragrance-free option: Biore UV Aqua Rich Watery Hold Cream Fragrance-Free SPF 50 PA+++*, which may be better suited for sensitive skin or those who prefer to avoid fragrance altogether.
Outside of Biore, the texture of Dr.G Vita Clear Sun Serum* is quite similar in feel to Biore’s Watery Essence*. Because of this, it can also be a good alternative if Biore sunscreens are not available to you or if you're looking for a comparable lightweight, serum-like formula.
Where to buy Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition, and how much does it cost?
I purchased the Biore UV Aqua Rich Watery Essence Sunscreen SPF 50+ PA++++ Botanical Peony Edition from YesStyle, where it cost around $11 for 50 g. You can also use my referral code BETWEENDOTS to save 2–5% on your YesStyle order.
Overall, I was pleasantly surprised by this sunscreen. It restored my confidence in Japanese sunscreens and reminded me why so many people love this formula.
Have you ever tried Biore before?
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