Ask KBeauty Verified™
KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
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Round Lab Birch Moisturizing Sun Stick SPF 50

Sunscreen · SPF 50

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Check against official records

KR South Korea (MFDS)

1 ingredient with Korea limits or conditions.

Pinus Sylvestris Leaf Oil
EU European Union (CosIng)

1 ingredient with EU limits or conditions.

Pinus Sylvestris Leaf Oil
US United States (FDA)

1 ingredient with U.S. limits or conditions.

Octocrylene
#Ingredient (as listed)KR KoreaEU EUUS U.S.
1 WATER ———
2 HOMOSALATE Approved UV filter · 10% Approved UV filter · 7,34 % Approved UV filter · 15%
3 OCTOCRYLENE Approved UV filter · 10% Approved UV filter · a) 9% · b) 10% Approved UV filter · 10% Banned in some U.S. states
4 OCTISALATE
Octisalate
Approved UV filter · 5% Approved UV filter · 5% Approved UV filter · 5%
5 AVOBENZONE
Avobenzone
Approved UV filter · 5% Approved UV filter · 5% Approved UV filter · 3%
6 DIETHYLHEXYL CARBONATE ———
7 DIMETHICONE ———
8 METHYL METHACRYLATE CROSSPOLYMER ———
9 SYNTHETIC WAX ———
10 DIPHENYLSILOXY PHENYL TRIMETHICONE ———
11 BUTYLOCTYL SALICYLATE ———
12 BUTYL METHOXYDIBENZOYLMETHANE
Avobenzone
Approved UV filter · 5% Approved UV filter · 5% Approved UV filter · 3%
13 ISOPROPYL PALMITATE ———
14 PHENETHYL BENZOATE ———
15 DIISOSTEARYL MALATE ———
16 ETHYLHEXYL ISONONANOATE ———
17 CAPRYLYL TRIMETHICONE ———
18 SYNTHETIC FLUORPHLOGOPITE ———
19 BIS-BEHENYL/ISOSTEARYL/PHYTOSTERYL DIMER DILINOLEYL DIMER DILINOLEATE ———
20 POLYMETHYLSILSESQUIOXANE ———
21 POLYETHYLENE ———
22 DIMETHICONE/VINYL DIMETHICONE CROSSPOLYMER ———
23 CAMELLIA JAPONICA SEED OIL ———
24 ETHYLENE/PROPYLENE COPOLYMER ———
25 SILICA DIMETHYL SILYLATE ———
26 DIMETHICONE CROSSPOLYMER ———
27 CANDELILLA WAX ESTERS ———
28 ARTEMISIA ANNUA EXTRACT ———
29 COPERNICIA CERIFERA (CARNAUBA) WAX ———
30 PINUS SYLVESTRIS LEAF OIL Restricted Restricted —
31 ANTHEMIS NOBILIS FLOWER OIL ———
32 DIPOTASSIUM GLYCYRRHIZATE ———
33 ALLANTOIN ———
34 GLYCERYL GLUCOSIDE ———
35 BUTYLENE GLYCOL ———
36 GLYCERIN ———
37 1,2-HEXANEDIOL ———
38 BETULA PLATYPHYLLA JAPONICA JUICE ———
39 ULMUS DAVIDIANA ROOT EXTRACT ———
40 ALOE BARBADENSIS LEAF EXTRACT ———
41 DIOSCOREA JAPONICA ROOT EXTRACT ———
42 VIOLA MANDSHURICA FLOWER EXTRACT ———
43 LAMINARIA JAPONICA EXTRACT ———
44 GLYCERYL CAPRYLATE ———
45 SODIUM HYALURONATE ———
46 HYALURONIC ACID ———
47 ASCORBIC ACID ———

“—” means no specific record for that ingredient in that jurisdiction's lists — it is not an approval. Restricted ingredients are allowed within limits (concentration, product type, label warnings); a product listing one is not necessarily over the limit. How we check.

Ingredient list from Round Lab official store, retrieved Oct 17, 2026. Formulas change — check the label on the package you buy.

Can I take it to Hawaii? — reef sunscreen laws

Checked against this formula's UV filters (Homosalate, Octocrylene, Octisalate, Avobenzone). These laws cover sunscreens sold — and in some places used — without a prescription.

PlaceResultWhyLaw · since
State of Hawaii OK None of the banned filters HRS §342D-21 (Act 104, 2018) · 2021-01-01
Maui County, HI Not allowed (sale and use) Non-mineral filters: Homosalate, Octocrylene, Octisalate, Avobenzone Maui County Code ch. 20.42 (Ord. 5306) · 2022-10-01
Hawaiʻi County (Big Island), HI Not allowed (sale) Non-mineral filters: Homosalate, Octocrylene, Octisalate, Avobenzone Hawaiʻi County Code §14-31 (Ord. 22-81) · 2022-12-01
U.S. Virgin Islands Not allowed (sale, import and use) Contains: Octocrylene 27 V.I.C. §305h (Act 8185) · 2020-03-30
Key West, FLNot enforcedThe 2019 ban on oxybenzone/octinoxate was preempted by Florida law (Fla. Stat. §499.002(7), 2020).Ord. 19-03

Hawaii state and U.S. Virgin Islands laws exclude products sold as face cosmetics without a sunscreen claim; SPF products are sunscreens. Information only — check the latest rules before you travel.

Fragrance allergens (EU labelling)

None of the fragrance allergens the EU requires to be labelled appear in this ingredient list.

Source: EU Cosmetics Regulation Annex III as amended by Regulation (EU) 2023/1545 — the list grew from 26 to over 80 entries; it applies to new products from 31 July 2026 and to all products from 31 July 2028. Shown for information; it is not a sign that a product is unsafe.

Storage & heat

Official storage statements

“Protect the product in this container from excessive heat and direct sun.” — Required 'Other information' statement for sunscreens sold in the U.S. (FDA OTC Monograph M020)

“Keep out of direct sunlight. Keep out of reach of children.” — Common precautions required on all cosmetics in Korea (Cosmetics Act Enforcement Rule, Annex 3)

Our note — heat, light & air

This formula lists ingredients that are known to break down faster in heat, light or air:

Don't leave sunscreen in a hot car or in direct sun on the beach — heat can separate the formula and lower protection.

Other markets

Ingredients in this formula that are prohibited or limited in other markets, from the overseas regulation database compiled by Korea's MFDS. Limited means allowed within conditions.

MarketProhibitedLimited
CN China None found Avobenzone, Octisalate, Homosalate, Octocrylene
AS ASEAN (10 countries) None found Avobenzone, Octisalate, Homosalate, Octocrylene
JP Japan None found Allantoin, Avobenzone, Dipotassium Glycyrrhizate, Octisalate, Homosalate, Octocrylene
TW Taiwan None found Allantoin, Avobenzone, Octisalate, Homosalate, Octocrylene
CA Canada None found Avobenzone, Octisalate, Glycerin, Homosalate, Octocrylene
BR Brazil None found Avobenzone, Octisalate, Homosalate, Octocrylene
AR Argentina None found Avobenzone, Octisalate, Homosalate, Octocrylene

Similar ingredient lists

Products from other brands whose ingredient lists overlap most with this one. The score weighs the first ingredients most (labels list them roughly by amount), skips ingredients found in most products, and counts UV filters and less common ingredients more. Similar ingredient lists (not a test of how they work) — amounts, texture and results can differ.

COSRX AIRY-LIGHT OIL CONTROL CLEAR SUNSCREEN STICK SPF 50 Sunscreen · SPF 50
91% similar · Shares 17 of this product's first 20 ingredients, including Octocrylene, Homosalate and Avobenzone.
Compare side by side →
0 2 2 0 0 0 0 5
Abib Airy sunstick Smoothing bar SPF50+ PA++++ 23g Sunscreen · SPF 50+ · PA++++
80% similar · Shares 14 of this product's first 20 ingredients, including Octocrylene, Homosalate and Octisalate.
Compare side by side →
0 0 0 0 0 0 0 3
COSRX Vitamin E Vitalizing Sunscreen SPF 50+ Sunscreen · SPF 50+
70% similar · Shares 7 of this product's first 20 ingredients, including Avobenzone, Octocrylene and Homosalate.
Compare side by side →
0 2 2 0 0 0 0 4
Anua Zero-cast Moisturizing Finish Sunscreen Sunscreen
70% similar · Shares 7 of this product's first 20 ingredients, including Avobenzone, Octocrylene and Homosalate.
Compare side by side →
1 2 0 0 0 0 0 3
Beauty of Joseon Day Dew Sunscreen Sunscreen
70% similar · Shares 7 of this product's first 20 ingredients, including Avobenzone, Octocrylene and Homosalate.
Compare side by side →
1 2 1 0 0 0 0 6
Mixsoon Centella Hyal Sunscreen 50ml Sunscreen
70% similar · Shares 7 of this product's first 20 ingredients, including Avobenzone, Octocrylene and Homosalate.
Compare side by side →
2 2 2 0 0 0 0 7

Based on the listed ingredients only; recalculated weekly. Not a judgment of which product is better, safer or the same.

Compare with

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Information only, not medical advice. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist before use.

Frequently asked questions

Is Round Lab Birch Moisturizing Sun Stick SPF 50 allowed in the European Union?

We found no prohibited ingredients. 1 ingredient has limits or conditions in the EU's CosIng records (Pinus Sylvestris Leaf Oil). That usually means a maximum amount, a product type or a label warning — not a ban.

Is Round Lab Birch Moisturizing Sun Stick SPF 50 allowed in South Korea?

We found no prohibited ingredients. 1 ingredient has limits or conditions in Korea's MFDS records (Pinus Sylvestris Leaf Oil). That usually means a maximum amount, a product type or a label warning — not a ban.

Is Round Lab Birch Moisturizing Sun Stick SPF 50 allowed in the United States?

We found no prohibited ingredients. 1 ingredient has limits or conditions in the FDA's records (Octocrylene). That usually means a maximum amount, a product type or a label warning — not a ban.

Can Round Lab Birch Moisturizing Sun Stick SPF 50 be sold as a sunscreen in the U.S.?

Every UV filter we matched in its list is on the FDA's list of sunscreen actives. That is a statement about the filters, not an FDA approval of this product.

Does Round Lab Birch Moisturizing Sun Stick SPF 50 contain fragrance allergens?

None of the fragrance allergens the EU requires to be labelled appear in its ingredient list.

What are the main ingredients in Round Lab Birch Moisturizing Sun Stick SPF 50?

Ingredient lists are in descending order of amount down to about 1%. The first five listed are: WATER, HOMOSALATE, OCTOCRYLENE, OCTISALATE, AVOBENZONE. In total 47 ingredients are listed.

Where does this ingredient list come from?

From Round Lab official store on October 17, 2026. We re-read it every week and keep earlier versions if the formula changes.

Ask KBeauty Verified™
KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
Reading time:
Views: 0
Claude: 1 ChatGPT: 0 Google · Gemini: 0 Perplexity: 0 Meta AI: 0 Amazon: 0 Others: 0
Read by AI & crawlers
Claude1
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Google · Gemini0
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Meta AI0
Amazon0
Others0

Named by what the crawler says it is; look-alikes we detect are counted under Others. Google · Gemini includes Googlebot, Google’s search crawler, whose index Google also uses for its AI features; other search engines and bots are in Others. AI visibility →