This has quickly become a staple in my daily routine. The lightweight texture absorbs beautifully into the skin without leaving any white cast.
Jessica B.
★★★★★
What I love most is how hydrating it feels - it almost works like a moisturizer for my skin. Even with my sensitive skin, it feels comfortable without irritation or breakouts.
Anne T.
★★★★★
This sunscreen feels completely different from typical sunscreens. It's lightweight, leaves no white residue, and feels gentle and comfortable on the skin
Sarah L.
★★★★★
No se pudo cargar la disponibilidad de retiro
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🧪 Key Ingredients & Benefits
Inje Birch Sap: Sourced from pristine Korean birch forests to flood your skin barrier with mineral-rich, deep hydration.
Vegan PDRN & Adenosine: Premium anti-aging actives that target dark spots, smooth fine lines, and boost elasticity.
Hyaluronic Acid & Allantoin: Deeply plumps dehydrated skin and actively calms redness and irritation.
Formulated without parabens, synthetic fragrances, or animal-derived ingredients.
📦 Shipping & Delivery
Processing Time: All orders are packaged with care and processed within 24–72 hours.
U.K. Standard Shipping: Delivered straight to your door in 4-8 business days.
Real-Time Tracking: You will receive a tracking number via email as soon as your order ships, allowing you to monitor your package every step of the way.
☀️ How To Use & Makeup Prep
Smooth a generous amount over your face and neck as the final step of your morning skincare routine.
💡 The Routine Hack: Since our formula is intensely hydrating, you can completely skip your morning moisturizer. Let it absorb for 10 seconds before applying foundation to use it as a gripping, dewy makeup primer.
🛡️ Our 30-Day Glow Guarantee
We want you to love your skin. If you are not absolutely obsessed with the lightweight feel and the weightless glow of our Sun Serum within 30 days of receiving your order, just reach out to us at support.lus@gmail.com. We will happily arrange a hassle-free refund or replacement. No hard feelings!
Love it or send it back within 30 days for a full refund, no questions asked
The 3-in-1 Daily Hydrating Sun Serum
Stop choosing between hydration, anti-aging, and sun protection. Sourced with pristine Korean Birch Sap, this ultra-lightweight formula melts into your skin in under 10 seconds—leaving zero white cast and a flawless, makeup-ready glow.
No Guesswork. Just Proven Results.
We don't just claim to protect your skin—we've proven it. Our formula has undergone rigorous testing to meet the absolute highest standards of safety and efficacy.
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Traditional Sunscreen
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Round Sun Serum
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Sourced directly from the pristine, untouched forests of Inje, Korea, Birch Sap is nature’s ultimate moisture-booster. Rich in amino acids, minerals, and vitamins, it replenishes deep skin hydration while actively calming inflammation.
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Key Proof Points
U.S. Clinically Tested (FSTI Florida): Tested by Florida Suncare Testing, Inc., delivering an average tested SPF value of 60.3 (PA++++ Broad Spectrum). True, powerful defense against premature aging and dark spots.
OTC Registered Safety: Formulated and registered as an Over-The-Counter product to guarantee clean, safe, and regulated ingredients even for reactive skin.
Kid-Safe CPC Certified: Gentle enough for children aged 6 and up. If it is safe and soothing for a child’s delicate skin, you know it will treat yours with the utmost care.
FAQ'S
Is this sunscreen really safe for kids?
Yes! It is officially CPC Certified and clinically proven safe for children aged 6 and older, making it the perfect, irritation-free option for the entire family.
Does it have a strong sunscreen smell?
Not at all. Our formula is completely fragrance-free, meaning no artificial perfumes, no chemical odors, and no stinging eyes.
Will it make my face look oily if I have combination skin?
No. It provides a healthy, hydrated "dewy" finish, but it absorbs completely flat without leaving a greasy film or heavy residue behind.
Is this product authentic? I see other versions online.
Yes, 100% authentic. This is the official OTC Registered version of Round Lab's Birch Juice Sunscreen, specifically compliant with U.S. FDA safety standards. While the packaging might slightly differ from the domestic Korean version, the premium formula is exactly the same authentic, high-quality product.
What is your return policy?
We want you to love your skin. We offer a 30-day money-back guarantee if the product arrives damaged or if you experience any issues. Please refer to our Refund Policy page for more details.
Can I use this if I have highly sensitive or acne-prone skin?
Yes. Our formula is fragrance-free, non-comedogenic (won't clog pores), and clinically tested to be safe, gentle, and soothing even for reactive and breakout-prone skin.
Note:Our Sun Serum is a daily cosmetic moisturizer with SPF 50+. It is designed for cosmetic sun protection and skin hydration. Results may vary. Always patch test before first use.