The Weekly Essence — one honest email every Sunday. Best-value picks from sellers we've checked.
Subscribe
Sunscreen · 19 g · $0.92/g
ROUND LAB Birch Juice Moisturizing Sun Stick offers SPF protection with birch juice and niacinamide to hydrate and brighten the look of skin while providing daily sun defense.
Currently sold at 5 retailers selling to US shoppers, from $17.50 (cheapest: YesStyle) to $25.00. Average US price $22.90. Prices checked October 6, 2026.
Best price right now
$17.50
$0.92 per g
Checked today
at YesStyle
$7.49 less than the typical seller (30%).
Now $17.50 at YesStyle — typically $16–$17 over the 60 days we've tracked it; lowest we've seen: $17.50.
Never overpay for this again.
Drop your email and we'll ping you the moment this gets cheaper — or restocks — at an authentic seller. No account needed.
Why Korean sunscreen feels like skincare, not chores
In Korea, sunscreen is treated as a cosmetic, so brands get to use newer UV filters that the FDA hasn't cleared in the US yet. That's why the Korean formula is often weightless, blends invisibly, and carries that PA++++ UVA protection everyone raves about. The only catch: it isn't FDA-verified here, which is why we only surface listings from trusted retailers we can actually vouch for.
Prices last checked today · across 5 retailers
Prices can change between checks — confirm the final price on the retailer's site before buying.
Big retailers
We only compare sellers we've checked and dated (on Amazon, only the brand's own store), and we never take payment to rank. How we make money →
Price history
We check every authenticated seller daily; each point is the lowest price we found that day.
The best total right now from an authorized, authenticity-checked seller of ROUND LAB Birch Juice Moisturizing Sun Stick is $17.50 at YesStyle — checked Oct 5, 2026. We rank on price plus shipping, and show what each price does and does not include. We never take payment to rank.
Skin compatibility
We run the ingredient list we hold against three curated reference lists. Skin is personal — these are notes to help you decide, not rules. Pregnancy questions belong with your doctor, and if we don't have a full ingredient list we say so instead of guessing.
Transparency
Key active
Niacinamide
listed
brightening
Key active
Ascorbic Acid
listed
brightening
Key active
Hyaluronic Acid
listed
hydration
Concentrations as stated by the brand — we never estimate them from the INCI order.
Some links on this site are affiliate links. If you buy through them, we may earn a small commission — at no extra cost to you. This helps us keep price tracking free and independent.
Answers