The Round Lab Birch Juice Moisturizing Sunscreen This sunscreen promises to provide protection — with a nice and strong SPF 50 — and hydration via its key ingredient: birch tree sap, a little ...

Clocking in at SPF 50, Round Lab’s Birch Juice is protective against the sun’s strong UV rays, clocking in at SPF 50. Second, it’s hydrating and applies just like skin care.

Round Lab’s Birch Juice sunscreen is our absolute favorite face SPF and it’s currently on sale on Amazon. June 11, 2025, 3:57 PM EDT. Ashley Morris. Associate SEO Reporter.

The world-famous Birch Juice Moisturizing Sunscreen with SPF50+ is Korea’s No. 1 sunscreen, having received multiple No. 1 awards from Hwahae, Glowpick, and Olive Young.