The sunscreen that rewrote the rules for what a $14 product could deliver. With independently verified SPF 50+, 30% rice extract, niacinamide, and a probiotic ferment complex, it offers protection and skincare benefits that rival products three times its price. The texture that feels like wearing nothing on your face is the reason it went viral — and stayed there.
Relief Sun: Rice + Probiotics SPF 50+
The sunscreen that rewrote the rules for what a $14 product could deliver. With independently verified SPF 50+, 30% rice extract, niacinamide, and a probiotic ferment complex, it offers protection and skincare benefits that rival products three times its price. The texture that feels like wearing nothing on your face is the reason it went viral — and stayed there.
Score Breakdown
The original K-beauty sunscreen phenomenon — independently lab-verified SPF protection with 30% rice extract, niacinamide, probiotic ferments, and adenosine at an unbeatable price point. Broad skin type compatibility, zero white cast, and a texture that makes daily SPF use genuinely enjoyable. One of the best-value sunscreens in any market.
Data Confidence: high
This score is based on 5+ years of market presence, verified SPF testing from two independent laboratories (Korea and Spain), tens of thousands of user reviews across all major platforms, and extensive dermatologist and beauty community endorsement. One of the most thoroughly reviewed K-beauty products globally.
0/100
Overall Score
Ingredient Quality 0
Value for Money 0
Suitability Breadth 0
Irritation Risk (↑ = safer) 0
Assessment
Pros
- Independently verified SPF 50+ — lab-tested at 52.5 and 63.1 by two separate facilities
- Virtually weightless texture that feels like wearing nothing — the gold standard in sunscreen comfort
- 30% rice extract, niacinamide, probiotic ferments, and adenosine provide genuine skincare benefits
- Essentially invisible on most skin tones with minimal to no white cast
- At $14.40 for 50ml, affordable enough for generous application and worry-free reapplication
- Broad skin type compatibility — works for nearly everyone from dry to oily
Cons
- Slightly dewy finish may require powder for very oily skin types in humid conditions
- 50ml tube depletes within 3-5 weeks with proper daily application amounts
- Tinosorb M nanoparticles may produce subtle cast on very deep skin tones
- Can pill under certain heavy moisturizers or silicone-heavy products
- Not water-resistant — reapplication needed after swimming or heavy sweating
Full Review
There is a before and after in the history of K-beauty sunscreens, and the dividing line is this tube. Before the Relief Sun: Rice + Probiotics, the landscape was binary: you could have affordable sunscreen that felt like spackling paste, or elegant sunscreen that cost thirty-five dollars and came in a bottle designed by someone who also does perfume packaging. Beauty of Joseon walked into this market in 2021 and quietly detonated the assumption that these two qualities couldn't coexist at $14.
The product went viral in the most authentic way possible. No paid campaigns, no celebrity endorsements, no manufactured scarcity. Users tried it, found that it felt like nothing on their skin, confirmed it actually protected them from the sun, and told everyone they knew. Reddit threads. TikTok reviews. Dermatologist recommendation videos. The organic spread was so overwhelming that Beauty of Joseon repeatedly couldn't keep it in stock.
But viral products don't always survive scrutiny, which is why what happened next matters: independent SPF testing. When beauty enthusiasts commissioned laboratory analysis — one lab in South Korea, one in Spain — the results came back at 52.5 and 63.1 respectively, both exceeding the SPF 50+ claim. The product wasn't just pleasant to wear; it was doing its job.
The formulation deserves serious attention. The UV filter system combines four chemical filters that cover the full UV spectrum: DHHB for UVA1, ethylhexyl triazone for UVB, methylene bis-benzotriazolyl tetramethylbutylphenol (Tinosorb M) for broad coverage, and diethylhexyl butamido triazone (Iscotrizinol) for additional UVB stability. These are modern, photostable filters — the same technology found in premium European formulations. They don't degrade under UV exposure the way older filters like avobenzone can.
Beyond UV protection, the formula packs genuine skincare punch. The 30% rice extract base delivers amino acids, vitamins, and mild brightening activity. Niacinamide — listed eighth, suggesting meaningful concentration — provides barrier strengthening, brightening, and anti-inflammatory benefits. A multi-source probiotic ferment complex (including lactobacillus, saccharomyces, and aspergillus ferments) supports the skin microbiome. And adenosine, Korea's approved anti-wrinkle ingredient, adds collagen-supporting activity.
The texture is where this sunscreen earns its cult status. It applies like a lightweight lotion — fluid, thin, and cooperative. There's no resistance, no heavy film, no sense that you've applied a protective layer at all. It absorbs within seconds and sets to a finish that's natural with the faintest hint of dewiness. On most skin tones, it's completely invisible. Some users with very deep skin tones have reported a subtle cast from the Tinosorb M nanoparticles, but the majority find it undetectable.
As a daily sunscreen, the experience is transformative for people who previously dreaded SPF application. When your sunscreen feels like skincare — when it actually makes your skin look and feel better rather than worse — you stop viewing it as a chore and start viewing it as a benefit. This psychological shift is arguably as important as the UV protection itself, because the best sunscreen in the world does nothing if it stays in the drawer.
The limitations are minor but real. Very oily skin types may find the finish slightly too dewy in humid conditions — a powder or matte primer on top resolves this. The 50ml tube runs out faster than you'd like when you're applying the proper two-finger-length amount daily. And some users experience pilling when layering it over heavier moisturizers or silicone-based primers — a compatibility issue that a quick trial with your existing routine will resolve.
At $14.40 for 50ml, the financial argument for this sunscreen is almost unfair to competitors. It's inexpensive enough that you can apply generously without wincing, reapply without counting the cost, and keep one at home and one in your bag without budgetary guilt. This accessibility has done more for real-world sun protection than any luxury SPF ever could.
The Relief Sun: Rice + Probiotics isn't just a product — it's proof of concept. Proof that sunscreen can be affordable and elegant. Proof that K-beauty's formulation expertise can compete with the best European pharmaceutical sunscreens at a fraction of the price. Proof that when you remove the barriers to daily SPF use — cost, texture, finish, feel — people will actually protect their skin. In a category full of products that feel like obligations, this one feels like a gift.
Formula
Ingredients
The hero actives that drive this product's performance.
| Ingredient | Function | Evidence |
|---|---|---|
| Rice Extract (30%) (30%) | Forms the hydrating base of this sunscreen at 30%, delivering rice-derived amino acids, vitamins, and mild brightening activity. The rice creates a lightweight, nourishing vehicle for the UV filters that provides genuine skincare benefits beyond simple moisture. | promising |
| DHHB (Diethylamino Hydroxybenzoyl Hexyl Benzoate) | A photostable UVA filter that specifically targets the long-wave UVA1 range responsible for photoaging. Paired with ethylhexyl triazone and Tinosorb M in a comprehensive filter system that earned verified SPF ratings of 52.5 and 63.1 in independent lab testing. | well-established |
| Niacinamide | Eighth in the INCI list, suggesting a meaningful concentration. Provides brightening, anti-inflammatory, and barrier-strengthening benefits that complement the UV protection — helping repair the skin processes that UV damage disrupts. | well-established |
| Probiotic Ferment Complex | A multi-source ferment blend including lactobacillus/pumpkin ferment, bacillus/soybean ferment, saccharomyces/rice ferment filtrate, and lactobacillus/rice ferment. These fermented extracts support the skin microbiome and provide postbiotic compounds that enhance skin barrier function during UV exposure. | promising |
| Adenosine | A Korean-approved anti-wrinkle functional ingredient that supports collagen synthesis, adding anti-aging benefits to the sunscreen's already robust protective and nourishing profile. | well-established |
Full INCI List
Water, Oryza Sativa (Rice) Extract, Dibutyl Adipate, Propanediol, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Polymethylsilsesquioxane, Ethylhexyl Triazone, Niacinamide, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Coco-Caprylate/Caprate, Caprylyl Methicone, Diethylhexyl Butamido Triazone, Glycerin, Butylene Glycol, Oryza Sativa (Rice) Germ Extract, Camellia Sinensis Leaf Extract, Lactobacillus/Pumpkin Ferment Extract, Bacillus/Soybean Ferment Extract, Saccharum Officinarum (Sugarcane) Extract, Macrocystis Pyrifera (Kelp) Extract, Cocos Nucifera (Coconut) Fruit Extract, Panax Ginseng Root Extract, Monascus/Rice Ferment, Pentylene Glycol, Behenyl Alcohol, Poly C10-30 Alkyl Acrylate, Polyglyceryl-3 Methylglucose Distearate, Decyl Glucoside, Tromethamine, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, 1,2-Hexanediol, Sodium Stearoyl Glutamate, Polyacrylate Crosspolymer-6, Ethylhexylglycerin, Adenosine, Xanthan Gum, Tocopherol, Lactobacillus/Rice Ferment, Aspergillus Ferment, Saccharomyces/Rice Ferment Filtrate
Product Flags
✓ Fragrance Free✓ Alcohol Free✗ Oil Free✗ Silicone Free✓ Paraben Free✓ Sulfate Free✓ Cruelty Free✓ Vegan✗ Fungal Acne Safe
Compatibility
Skin Match
Best For
Works For
Not Ideal For
Addresses These Conditions
Routine Step
sunscreen
Time of Day
AM
Pregnancy Safe
Yes ✓
Layering Tips
Apply generously as the last step of morning skincare. The lightweight texture layers well under makeup. Can double as a light moisturizer for normal skin in summer. Reapply every 2 hours during sun exposure.
Results Timeline
Immediate UV protection with a natural, slightly dewy finish. The 30% rice extract provides subtle cumulative brightening over weeks of daily use. Consistent use prevents photoaging and sun damage.
Pairs Well With
hydrating tonerslightweight serumssetting powder for matte finish
Sample AM Routine
- Gentle cleanser
- Toner
- Lightweight serum
- Beauty of Joseon Relief Sun: Rice + Probiotics SPF 50+
Sample PM Routine
- Oil cleanser (to remove)
- Gentle cleanser
- Toner
- Treatment serum
- Moisturizer
Evidence
Science
The Science
The UV filter system in this sunscreen has been independently validated by two laboratories, making it one of the most transparently tested K-beauty sunscreens available.
The four-filter combination provides comprehensive spectral coverage. DHHB targets UVA1 (340-400nm), the radiation most responsible for dermal photoaging. Ethylhexyl triazone and diethylhexyl butamido triazone (Iscotrizinol) provide potent UVB absorption. Methylene bis-benzotriazolyl tetramethylbutylphenol (Tinosorb M, in nano form) contributes both UVA and UVB coverage as an organic particulate filter.
The independent SPF verification is noteworthy. Testing at a Korean laboratory yielded SPF 52.5±5.8, while a Spanish laboratory measured SPF 63.1±0.6 — both substantially exceeding the SPF 50+ label claim. This level of transparent third-party validation is uncommon in the cosmetic sunscreen market.
Niacinamide, present at a likely significant concentration (eighth in the INCI list, after UV filters), provides photoprotective benefits beyond UV filtering. Research published in Photodermatology, Photoimmunology & Photomedicine has demonstrated that topical niacinamide enhances cellular energy production and DNA repair mechanisms following UV exposure, effectively supporting the skin's own recovery processes.
The probiotic ferment complex includes Lactobacillus/Pumpkin Ferment Extract and Saccharomyces/Rice Ferment Filtrate, among others. While research on topical probiotics in sunscreen is still emerging, studies have shown that ferment lysates can modulate skin immune response and strengthen barrier function — both relevant to UV-stressed skin.
Adenosine's anti-wrinkle mechanism involves stimulation of collagen synthesis through adenosine receptor activation. Korean MFDS certification of adenosine as a functional anti-wrinkle ingredient is based on clinical studies demonstrating measurable wrinkle reduction.
Dermatologist Perspective
Dermatologists widely recognize this sunscreen as one of the best-value options available for daily UV protection. Board-certified dermatologists note that the independently verified SPF testing sets this product apart from many competitors whose protection claims have not been independently validated. The combination of modern, photostable UV filters with skincare actives (niacinamide, adenosine) aligns with the dermatological principle that sunscreen should be a treatment step, not just a barrier. Dermatologists commonly recommend this product for patients who resist daily sunscreen use due to texture complaints — its lightweight, invisible application addresses the most common barriers to sunscreen adherence.
Guidance
Usage Guide
How to Use
Apply approximately two finger-lengths (1.25ml) to the face as the last step of your morning skincare routine. Spread evenly across face and neck. Wait 1-2 minutes before applying makeup. Reapply every 2 hours during prolonged sun exposure, or after swimming, sweating, or toweling off. Remove in the evening with an oil-based cleanser — the UV filters require oil or micellar water for thorough removal.
Value Assessment
At $14.40 for 50ml, this is arguably the best value sunscreen in any market category. The UV filter system — four modern, photostable filters independently verified at SPF 52.5-63.1 — matches or exceeds formulations from brands charging $30-50. Add 30% rice extract, niacinamide, probiotic ferments, and adenosine, and the ingredient-to-price ratio becomes extraordinary. The practical monthly cost of $14-20 (assuming proper daily application) is lower than many budget sunscreens that offer far less sophisticated formulations. For comparison, La Roche-Posay Anthelios with similar filter technology retails at $30-40 for 50ml without the rice extract or probiotic complex.
Who Should Buy
Everyone who wears sunscreen daily — this is as close to a universal recommendation as sunscreen gets. Particularly ideal for those who find most sunscreens unpleasant to wear, anyone looking for skincare benefits alongside UV protection, K-beauty enthusiasts, budget-conscious shoppers who refuse to compromise on protection, and people with normal, combination, or dry skin who want a slightly dewy finish.
Who Should Skip
Those with very deep skin tones who are particularly sensitive to any hint of white cast should test this carefully, as the Tinosorb M nanoparticles can be visible on some deeper complexions. Very oily skin types in humid climates may find the dewy finish too much — consider the Matte Sun Stick instead.
Ready to try Beauty of Joseon Relief Sun: Rice + Probiotics SPF 50+?
Details
Details
Texture
A lightweight, fluid cream that applies almost like a thin lotion. Sets to a natural, slightly dewy finish without greasiness. Virtually transparent on all skin tones.
Scent
No added fragrance. A very faint, neutral scent from the rice and ferment extracts that is barely noticeable.
Packaging
50ml squeeze tube with minimalist Beauty of Joseon design. Also available in a 10ml travel size. The tube format allows controlled dispensing for consistent application.
Finish
naturaldewylightweightnon-greasy
What to Expect on First Use
On first application, the surprise is how little this feels like sunscreen. It's light, fluid, and absorbs quickly — no thick, paste-like resistance. The finish is natural with a subtle glow. No stinging, no tingling, no fragrance assault. It's the kind of product that makes you realize most sunscreens are needlessly unpleasant.
How Long It Lasts
3-5 weeks with daily face and neck application at proper amount
Period After Opening
12 months
Best Season
All Year
Certifications
Cruelty-FreeVegan
Background
The Why
The Relief Sun: Rice + Probiotics became a global phenomenon around 2022-2023, going viral on TikTok and Reddit simultaneously. Beauty of Joseon had to dramatically increase production to meet demand. What made it viral wasn't aggressive marketing — it was thousands of organic user testimonials praising its weightless texture and genuine effectiveness. Independent SPF testing commissioned by beauty influencers confirmed its protection claims, cementing its reputation. It has since become one of the most-recommended sunscreens in the history of the K-beauty movement.
About Beauty of Joseon Established Brand (5–20 years)
Beauty of Joseon was founded in 2016 and reinvented in 2019 with a focus on traditional Korean hanbang ingredients combined with modern formulation science. The brand has built a strong global following and is now stocked at Sephora, with products that consistently earn high user ratings across multiple retail platforms.
Brand founded: 2016 · Product launched: 2021
Myth vs. Reality
Myths
Myth
Cheap sunscreens can't provide real SPF 50+ protection.
Reality
Two independent laboratories — one in South Korea and one in Spain — verified this sunscreen's SPF at 52.5±5.8 and 63.1±0.6 respectively, exceeding the label claim. Price does not determine efficacy — formulation skill does.
Myth
You need to use a Western or European sunscreen for reliable protection.
Reality
Korean sunscreens are tested to the same ISO standard (ISO 24444) as European products. The UV filters used in this product (DHHB, ethylhexyl triazone, Tinosorb M, iscotrizinol) are the same modern filters used in premium European formulations.
FAQ
FAQ
Does this sunscreen really have SPF 50+?
Yes — and it's been independently verified. Two separate laboratories, one in South Korea and one in Spain, tested this sunscreen and measured SPF values of 52.5±5.8 and 63.1±0.6 respectively. Both exceed the SPF 50+ label claim.
Is there a white cast?
For most skin tones, no. This is primarily a chemical sunscreen with organic UV filters that are transparent. However, it does contain methylene bis-benzotriazolyl tetramethylbutylphenol (Tinosorb M) in nano form, which can leave a very slight cast on deeper skin tones. The vast majority of users, including those with medium and dark skin, report no visible white cast.
Can I use this as a moisturizer and sunscreen in one?
For normal and combination skin in warm, humid weather, yes. The 30% rice extract, glycerin, and niacinamide provide enough hydration to serve as a light moisturizer. In winter or for dry skin, you'll still want a separate moisturizer underneath.
How does this compare to the Relief Sun Aqua-Fresh version?
The original Rice + Probiotics has a slightly lighter, more matte finish and focuses on niacinamide and probiotic ferments. The Aqua-Fresh version is more hydrating with a dewier finish and adds ceramide NP, phytosphingosine, and ferulic acid. Choose the original for a more universal, slightly matte finish; choose Aqua-Fresh for extra hydration and barrier repair.
Why did this sunscreen go viral?
A perfect combination of factors: lightweight texture that feels like wearing nothing, zero white cast, legitimate SPF 50+ protection verified by independent labs, beneficial skincare ingredients (rice, niacinamide, probiotics), and a price ($14.40) that made generous daily application financially painless. Organic word-of-mouth from users who genuinely loved it did the rest.
Is this sunscreen water-resistant?
This sunscreen is not marketed as water-resistant. Reapply after swimming, heavy sweating, or toweling off. For water activities, consider a dedicated water-resistant sunscreen.
Community
Community
Common Praise
"Virtually undetectable on the skin — feels like wearing nothing"
"No white cast whatsoever on any skin tone"
"Affordable enough to apply generously and reapply without guilt"
"Layers perfectly under makeup"
"Rice extract gives a subtle brightness over time"
Common Complaints
"Can feel slightly greasy on very oily skin in summer"
"50ml size runs out quickly with proper daily application"
"Slight white cast reported on deeper skin tones by some users"
"Contains nano-sized UV filter (Tinosorb M) which some prefer to avoid"
"Texture may pill under certain heavy moisturizers"
Notable Endorsements
Independent SPF verification: 52.5 (Korea) and 63.1 (Spain)Sephora K-Beauty best-sellerRecommended by Dr. Dray, James Welsh, and numerous dermatologist influencersViral on TikTok and Reddit r/SkincareAddiction
Appears In
best korean sunscreen best sunscreen under 20 best sunscreen no white cast best daily sunscreen best lightweight sunscreen
Related Conditions
sun damage dullness aging hyperpigmentation
Related Ingredients
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