Round Lab Birch Juice Moisturizing Sunscreen (US ver.) — image 11 / 3
Round Lab · Sunscreen

Birch Juice Moisturizing Sunscreen (US ver.)

Korea ranking #1 sunscreenUS stockNo white cast

A daily sunscreen that doubles as a light moisturizer, made for people who find most SPF too heavy or drying. This is the US-reformulated version, adjusted to use filters approved for sale in the States. It sits comfortably under makeup and doesn't leave a white cast, which makes it easy to reach for every morning.

More detail

Birch sap and hyaluronic acid provide the hydration while niacinamide helps even out tone, all in a base light enough to double as a morning moisturizer. The finish is fluid and skin-like rather than thick or greasy, and it doesn't leave a white cast, so it works for normal, dry, combination, and sensitive skin. Apply it as the last step of your morning routine, using enough to cover your face and neck, and reapply through the day when you're out in the sun. This is the US-reformulated version, made with filters approved for sale in the States, so the feel and filters differ from the original Korean formula.

4.51,980 reviews
BEvidence grade
$20Best total · duties in
spf-creamTexture · Sunscreen
For: Dry · Normal · Combination · SensitiveAll tones — no white filmSun careDehydrationSensitivity
Is this right for your skin? take the 60-second quiz and this box becomes a personal verdict.
Skin fit ×45%
Evidence ×35%76
Practicality ×20%50
Ingredient check⚠ 3 caution flags
Fragrance-free Fungal-acne safe No drying alcohol Essential-oil free No pregnancy-caution actives
Birch sapHydrating, soothingHyaluronic acidMoisture holdNoteUS-compliant filter version
Evidence checkGrade B
Grade BUS reformulation is new — KR-version evidence strong, US data accumulating.
How grading works
Scored on clinicals · certifications · cross-platform rating consistency · transparency. Brands can't pay to change this.
What Korea says#1 sunscreen
#1 sunscreen · Korea ranking · US formula launched 2026
"My daily sunscreen, all year round."Translated from a Korean review · original: "1년 내내 쓰는 데일리 선크림."
White Cast Indexcast-free on 5/5 tones
FairNo castn=7
Light–MediumNo castn=9
Medium–TanNo castn=6
DeepNo castn=8
Very deepNo castn=5

Real-skin reports under a standardized protocol — how the index works & add yours.

Reviews2 sample reviews · skin-twin filter
About these sample reviews

The profile cards below are illustrative demo entries showing how skin-twin matching will work — not real testimonials; they'll be replaced by verified creator reviews at launch. Your worked/didn't votes are real.

GraceDryLight–Medium toneDrynessSun care✓ Worked for them

Moisturizer and SPF in one step. No white film.

ImaniCombinationDeep toneDark spots (PIH)Sun care✓ Worked for them

Finally an SPF I'll rewear daily — key for my dark spots.

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Where to buybest total $20
RetailerPriceShip + dutyTotal
Ulta ✓ official
US-compliant formula
Accepts: Cards · PayPal · Apple Pay · Google Pay · Afterpay
$20$20BESTShop →
Amazon ✓ official
Official store only — check seller
Accepts: Visa · MC · Amex · Discover · Amazon Pay · Affirm
$20$20Shop →
Round Lab official ✓ official
Brand's official store, ships from Korea · +15% duty
Accepts: Cards · PayPal (varies)
$20$9.00$29Shop →

Totals include estimated import duty on Korea-shipped orders (15%, post–de minimis). Links open retailer search; exact product links are coming at launch. Payment methods indicative — verify at checkout.

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