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KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
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Round Lab Birch Moisturizing Sunscreen UVLock SPF 45+ Broad Spectrum

Sunscreen · SPF 45+

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Check against official records

KR South Korea (MFDS)

3 ingredients with Korea limits or conditions.

Tocopherol, Tromethamine, Pinus Sylvestris Leaf Oil
EU European Union (CosIng)

2 ingredients with EU limits or conditions.

Tromethamine, Pinus Sylvestris Leaf Oil
US United States (FDA)

No prohibited or restricted ingredients found in U.S. records.

#Ingredient (as listed)KR KoreaEU EUUS U.S.
1 Hydrating Soothing UV Protection WATER ———
2 ACRYLATES COPOLYMER ———
3 CAPRYLYL METHICONE ———
4 SPARASSIS CRISPA EXTRACT ———
5 TOCOPHEROL (VITAMIN E) Restricted · 20% ——
6 NIACINAMIDE ———
7 POLYGLYCERYL-3 DISTEARATEAVOBENZONE ———
8 HOMOSALATE Approved UV filter · 10% Approved UV filter · 7,34 % Approved UV filter · 15%
9 CALCIUM ALUMINUM BOROSILICATE ———
10 1,2-HEXANEDIOL ———
11 OCTISALATE
Octisalate
Approved UV filter · 5% Approved UV filter · 5% Approved UV filter · 5%
12 BUTYLOCTYL SALICYLATE ———
13 POLY C10-30 ALKYL ACRYLATE ———
14 CETEARYL ALCOHOL ———
15 TROMETHAMINE Restricted Restricted · Maximum secondary amine… —
16 GLYCERYL STEARATE CITRATE ———
17 BETULA PLATYPHYLLA JAPONICA JUICE ———
18 ARTEMISIA ANNUA EXTRACT ———
19 ANTHEMIS NOBILIS FLOWER OIL ———
20 ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER ———
21 GLYCERIN ———
22 BUTYLENE GLYCOL ———
23 SODIUM HYALURONATE ———
24 CARBOMER ———
25 ETHYLHEXYLGLYCERIN ———
26 HYALURONIC ACID ———
27 GLYCERYL GLUCOSIDE ———
28 PROPANEDIOL ———
29 PINUS SYLVESTRIS LEAF OIL Restricted Restricted —
30 ALLANTOIN ———
31 PORTULACA OLERACEA EXTRACT ———
32 SODIUM STEAROYL GLUTAMATE ———
33 GLYCERYL POLYMETHACRYLATE ———
34 TRIETHOXYCAPRYLYLSILANE ———
35 PENTYLENE GLYCOL ———
36 METHYLPROPANEDIOL ———
37 BIOSACCHARIDE GUM-1 ———
38 BENZOTRIAZOLYL DODECYL P-CRESOL ———
39 DIETHYLHEXYL 2,6-NAPHTHALATE ———
40 POLYMETHYLSILSESQUIOXANE ———

“—” 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, Octisalate). 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, Octisalate Maui County Code ch. 20.42 (Ord. 5306) · 2022-10-01
Hawaiʻi County (Big Island), HI Not allowed (sale) Non-mineral filters: Homosalate, Octisalate Hawaiʻi County Code §14-31 (Ord. 22-81) · 2022-12-01
U.S. Virgin Islands OK None of the banned filters 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 Octisalate, Homosalate, Tromethamine
AS ASEAN (10 countries) None found Octisalate, Homosalate, Tromethamine
JP Japan None found Allantoin, Octisalate, Homosalate
TW Taiwan None found Allantoin, Octisalate, Homosalate
CA Canada None found Octisalate, Glycerin, Homosalate
BR Brazil None found Octisalate, Homosalate, Tromethamine
AR Argentina None found Octisalate, Homosalate, Tromethamine

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.

Isntree Hyaluronic Acid Daily Sun Gel SPF30 Value Pack (50ml x 4) Sunscreen · SPF 30
53% similar · Shares 10 of this product's first 20 ingredients, including Homosalate, Octisalate and Portulaca Oleracea Extract.
Compare side by side →
0 0 0 0 0 0 0 0
Peach & Lily Beam Blocker Invisible Sunscreen Sunscreen
52% similar · Shares 10 of this product's first 20 ingredients, including Homosalate, Octisalate and Betula Platyphylla Japonica Juice.
Compare side by side →
0 0 0 0 0 0 0 0
Missha Glow Dewy Hydrating Sunscreen SPF40+ 50ml (OTC) - AMAZON BRIDGE Sunscreen · SPF 40+
50% similar · Shares 11 of this product's first 20 ingredients, including Homosalate, Octisalate and Caprylyl Methicone.
Compare side by side →
1 0 0 0 0 0 0 0
Medicube No Cast Just Glow Collagen Sunscreen Sunscreen
49% similar · Shares 12 of this product's first 20 ingredients, including Homosalate, Octisalate and Caprylyl Methicone.
Compare side by side →
3 2 2 0 0 0 0 7
Centellian24 Madeca Derma Shield Safe Tone-Up Sun Cream 50ml Sunscreen
49% similar · Shares 7 of this product's first 20 ingredients, including Homosalate, Octisalate and Caprylyl Methicone.
Compare side by side →
0 0 0 0 0 0 0 1
Medicube PDRN Hydrating UV Sun Serum Sunscreen
47% similar · Shares 10 of this product's first 20 ingredients, including Homosalate, Octisalate and Benzotriazolyl Dodecyl p-Cresol.
Compare side by side →
4 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 Sunscreen UVLock SPF 45+ Broad Spectrum allowed in the European Union?

We found no prohibited ingredients. 2 ingredients have limits or conditions in the EU's CosIng records (Tromethamine, 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 Sunscreen UVLock SPF 45+ Broad Spectrum allowed in South Korea?

We found no prohibited ingredients. 3 ingredients have limits or conditions in Korea's MFDS records (Tocopherol, Tromethamine, 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 Sunscreen UVLock SPF 45+ Broad Spectrum allowed in the United States?

We found no prohibited or restricted ingredients in the FDA's records for its listed ingredients. This is a records check, not an approval.

Can Round Lab Birch Moisturizing Sunscreen UVLock SPF 45+ Broad Spectrum 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 Sunscreen UVLock SPF 45+ Broad Spectrum 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 Sunscreen UVLock SPF 45+ Broad Spectrum?

Ingredient lists are in descending order of amount down to about 1%. The first five listed are: Hydrating Soothing UV Protection WATER, ACRYLATES COPOLYMER, CAPRYLYL METHICONE, SPARASSIS CRISPA EXTRACT, TOCOPHEROL (VITAMIN E). In total 40 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:
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ChatGPT: 0 Claude: 0 Google · Gemini: 0 Perplexity: 0 Meta AI: 0 Amazon: 0 Others: 0
Read by AI & crawlers
ChatGPT0
Claude0
Google · Gemini0
Perplexity0
Meta AI0
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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 →