Round Lab

Birch Juice Moisturizing Sunscreen SPF 50+

SunscreenBudgetMorning only
A hydrating chemical SPF with birch juice as the primary base (replacing water in the formula). Light, comfortable finish; hydrating without being greasy. One of the go-to affordable K-beauty daily sunscreens.

What this is good for

✓ Great forprotectDamaged Barrier

Ingredient stack

Each ingredient is listed in descending concentration. Above the 1% line the order is regulated — below it, brands can list in any order.

Ingredients above the dashed gold line are dosed above 1% (the regulatory threshold) — these are what the formulation is really built on.

~50–80%Betula Platyph…
~5–25%Butyl Methoxyd…
~3–10%Ethylhexyl Met…
~2–6%Dicaprylyl Car…
~1.5–4%Propanediol
~1–2%7 ingredients
~1–2%Glycerin
~1–2%9 ingredients
≤ 1% each5 more ingredients below 1%
position-estimated %1% regulatory line

What's actually doing the work

SPF / Sunscreen
Zinc Oxide / Titanium Dioxide / Broad-Spectrum UV Filter
Mineral
The single most evidence-backed anti-aging intervention. UV drives 80–90% of visible skin aging, hyperpigmentation and skin cancer risk. SPF 30 blocks ~97% UVB; SPF 50 blocks ~98%. Mineral filters (zinc oxide, titanium dioxide) physically deflect UV; chemical filters absorb and convert UV to heat.

Routine placement

Morning only

Similar on the shelf

Put this in context

Skin Stacker is independent and receives no payment from any brand. Ingredient analysis is based on publicly disclosed INCI lists and the peer-reviewed literature. Formulations change — always re-check the label on your specific batch before using.