Ultimate Comparison of the Top 3 Korean Sunscreens: Beauty of Joseon vs. Round Lab vs. Dr.G — Which One Is Your Perfect Match?

In today's global skincare market, 'Korean sunscreen' has become a household name. On platforms like TikTok and Reddit, most of the 'holy grail' products recommended by dermatologists and beauty creators are Korean brands.

Among them, 'Beauty of Joseon,' a protagonist of global sell-out streaks; 'Round Lab,' which has long dominated the domestic Olive Young rankings; and 'Dr.G,' known as the standard for dermatological, non-irritating sun care, are the three leading titans of Korean sun care.

We provide an unbiased, in-depth comparison of the actual ingredient composition, application, and satisfaction levels across different skin types, stripping away the hype of marketing claims.

Through this guide, you will learn:

• A comparison of the key ingredient characteristics of the three popular sunscreens: Beauty of Joseon, Round Lab, and Dr.G.

• The types and features of skincare-focused UV filters used in each product.

• The synergistic effects of rice extract, hyaluronic acid, and cica ingredients when combined with UV filters.

• Recommendation guides by skin type (dry, oily, combination-dehydrated, sensitive) and our top product picks.

🏆 Profiles and Key Strengths of the Top 3 K-Beauty Sunscreens

While each product shares the same goal of UV protection, they offer entirely different skincare benefits and application experiences.

1. Beauty of Joseon Relief Sun: Rice + Probiotics

• UV Filter Type: Chemical (Organic)

• Key Ingredients & Synergy:

  • Synergy Ingredient: Rice Extract

  • Formulated with 30% rice extract—a traditional Korean beauty secret—and grain-fermented probiotics to strengthen the skin barrier and brighten the complexion.

• Texture: A rich, moisturizing lotion-like texture that provides a subtle, healthy glow.

• Recommended User: Those with dry or combination skin who struggle with dullness and desire a hydrated, plump base for makeup application.

2. Round Lab Birch Juice Moisturizing Sunscreen

• UV Filter Type: Chemical (Organic)

• Key Ingredients & Synergy:

  • Synergy Ingredient: Hyaluronic Acid 👉 Innisfree Green Tea Seed Hyaluronic Serum

  • Birch sap harvested from high altitudes in Inje combined with Vita-Hyaluronic acid creates a deep hydration barrier, resolving inner-skin dryness caused by UV heat.

• Texture: A water-gel cream type that spreads smoothly and refreshingly upon contact, absorbing without a trace.

• Recommended User: Dehydrated oily skin types and men who despise stickiness or greasiness and want to maintain a fresh, hydrated look all day.

3. Dr.G Green Mild Up Sun+

• UV Filter Type: Mineral (Physical)

• Key Ingredients & Synergy:

  • Synergy Ingredient: Cica / Centella 👉 SKIN1004 Madagascar Centella Ampoule

  • Uses a 100% zinc oxide filter that reflects light from the skin's surface to minimize irritation, while calming cica and phyto-complex ingredients soothe overheated skin.

• Texture: Sets with a smooth, matte finish, leaving a subtle tone-up effect.

• Recommended User: Oily skin prone to breakouts from traditional sunscreens, or those with sensitive eyes prone to irritation.

More detailed skincare principles behind the key ingredients of each product are covered in the K-Beauty Skincare Ingredient Encyclopedia.

⚖️ Comparative Analysis: Ingredients, Texture, and Finish

To help you choose the best custom sunscreen, we have contrasted the three products by key metrics.

🛒 Final Guide & Where to Buy

Summary of the three best-sellers in Korea, which have successfully passed rigorous clinical testing for protection (SPF 50+ PA++++) both domestically and internationally.

👉 Shop K-Beauty on Amazon
👉 Shop Olive Young Global Sunscreens

🙋 Frequently Asked Questions (FAQ)

Q1. What is the main difference in application between Beauty of Joseon and Round Lab sunscreens?

Beauty of Joseon is formulated with rich rice extract, enveloping the skin like a nourishing moisturizer and leaving a soft glow. In contrast, Round Lab uses birch sap and hyaluronic acid, resulting in a water-gel texture that absorbs instantly and lightly upon application.

Q2. Why is Dr.G Green Mild Up Sun+ recommended for acne-prone or sensitive skin?

Dr.G Green Mild Up Sun+ is a 100% mineral sunscreen that avoids chemical filters. It is less irritating and contains Centella Asiatica (Cica) to soothe sensitive skin, while its matte finish helps control sebum, making it ideal for oily and acne-prone skin types.

Q3. I have a dark skin tone (Fitzpatrick V~VI). Which of these has no white cast?

Beauty of Joseon and Round Lab are chemical sunscreens and have zero white cast, absorbing transparently even on darker skin. Dr.G is 100% mineral and may show a slight white cast (greyish hue) on darker skin, though it is less noticeable than most mineral sunscreens. We recommend Beauty of Joseon or Round Lab for darker skin tones.

Q4. Are any of these waterproof enough for swimming or exercise?

All three products are designed for daily use and have limited water resistance. Beauty of Joseon is for light outings, Round Lab for daily hydration, and Dr.G for matte daily wear. For swimming or intense exercise, it is better to choose a product explicitly labeled 'Waterproof' (e.g., Amorepacific’s waterproof lines). However, note that most waterproof sunscreens are mineral-based or heavy, which may result in white casts or greasiness on darker skin tones.