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 Cushion SPF 50

Sunscreen · SPF 50

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Check against official records

KR South Korea (MFDS)

1 ingredient with Korea limits or conditions.

Tocopherol
EU European Union (CosIng)

No prohibited or restricted ingredients found in EU records.

US United States (FDA)

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

#Ingredient (as listed)KR KoreaEU EUUS U.S.
1 WATER ———
2 ZINC OXIDE Approved UV filter · 25% Approved colorant Approved UV filter · - 25% - Approved UV filter · 25%
3 CAPRYLYL METHICONE ———
4 METHYL TRIMETHICONE ———
5 BUTYLENE GLYCOL DICAPRYLATE/DICAPRATE ———
6 BUTYLOCTYL SALICYLATE ———
7 POLYGLYCERYL-4 DIISOSTEARATE/POLYHYDROXYSTEARATE/SEBACATE ———
8 PROPANEDIOL ———
9 GLYCERIN ———
10 METHYL METHACRYLATE/GLYCOL DIMETHACRYLATE CROSSPOLYMER ———
11 GLYCERYL GLUCOSIDE ———
12 ETHYLHEXYLGLYCERIN ———
13 LAMINARIA JAPONICA EXTRACT ———
14 ULMUS DAVIDIANA ROOT EXTRACT ———
15 ALOE BARBADENSIS LEAF EXTRACT ———
16 VIOLA MANDSHURICA FLOWER EXTRACT ———
17 DIOSCOREA JAPONICA ROOT EXTRACT ———
18 SODIUM HYALURONATE ———
19 HYALURONIC ACID ———
20 DIPOTASSIUM GLYCYRRHIZATE ———
21 ALLANTOIN ———
22 PORTULACA OLERACEA EXTRACT ———
23 BETULA PLATYPHYLLA JAPONICA JUICE ———
24 ASCORBIC ACID ———
25 MAGNESIUM SULFATE ———
26 ALUMINUM HYDROXIDE ———
27 DISTEARDIMONIUM HECTORITE ———
28 STEARIC ACID ———
29 TRIETHOXYCAPRYLYLSILANE ———
30 POLYGLYCERYL-6 POLYRICINOLEATE ———
31 1,2-HEXANEDIOL ———
32 DICAPRYLYL CARBONATE ———
33 SORBITAN CAPRYLATE ———
34 GLYCERYL CAPRYLATE ———
35 CAPRYLYL GLYCOL ———
36 TOCOPHEROL Restricted · 20% ——

“—” 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 (Zinc Oxide). 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 OK Mineral filters only Maui County Code ch. 20.42 (Ord. 5306) · 2022-10-01
Hawaiʻi County (Big Island), HI OK Mineral filters only 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)

On the brand's product page

“Store away from excessive heat and sunlight”

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 Zinc Oxide
AS ASEAN (10 countries) None found Zinc Oxide
JP Japan None found Allantoin, Dipotassium Glycyrrhizate
TW Taiwan None found Allantoin, Zinc Oxide
CA Canada None found Glycerin, Zinc Oxide
BR Brazil None found Zinc Oxide
AR Argentina None found Zinc Oxide

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.

Goongbe Baby Easy Wash Sun Lotion SPF 30, 2.11 fl.oz. Sunscreen · SPF 30 · $19.00
64% similar · Shares 9 of this product's first 20 ingredients, including Zinc Oxide, Butylene Glycol Dicaprylate/Dicaprate and Hyaluronic Acid.
Compare side by side →
0 0 0 0 0 0 0 0
Innisfree Daily UV Defense Mineral Sunscreen Broad Spectrum SPF 45 with Color Correcting Sunscreen · SPF 45 · $12.00
57% similar · Shares 8 of this product's first 20 ingredients, including Zinc Oxide, Caprylyl Methicone and Dicaprylyl Carbonate.
Compare side by side →
0 0 0 0 0 0 0 0
Abib Heartleaf mild sunscreen Relief tube SPF50+ PA++++ 50ml Sunscreen · SPF 50+ · PA++++ · $24.54
56% similar · Shares 8 of this product's first 20 ingredients, including Zinc Oxide, Caprylyl Methicone and Dipotassium Glycyrrhizate.
Compare side by side →
0 1 0 0 0 0 0 4
Cos De BAHA MS Hydrating Mineral Sunscreen 1.5 OZ (45ml ) Sunscreen
56% similar · Shares 7 of this product's first 20 ingredients, including Zinc Oxide, Caprylyl Methicone and Sodium Hyaluronate.
Compare side by side →
0 1 0 0 0 0 0 2
Isntree Hyaluronic Acid Natural Sun Cream 50ml Sunscreen · $21.96
56% similar · Shares 7 of this product's first 20 ingredients, including Zinc Oxide, Caprylyl Methicone and Tocopherol.
Compare side by side →
0 0 0 0 0 0 0 0
Pyunkang Yul Airy Protection Sun Cushion 15g Sunscreen · $19.99
56% similar · Shares 8 of this product's first 20 ingredients, including Zinc Oxide, Caprylyl Methicone and Allantoin.
Compare side by side →
0 2 0 0 0 0 0 2

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 Cushion SPF 50 allowed in the European Union?

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

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

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

Is Round Lab Birch Moisturizing Sun Cushion SPF 50 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 Sun Cushion 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 Cushion 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 Cushion SPF 50?

Ingredient lists are in descending order of amount down to about 1%. The first five listed are: WATER, ZINC OXIDE, CAPRYLYL METHICONE, METHYL TRIMETHICONE, BUTYLENE GLYCOL DICAPRYLATE/DICAPRATE. In total 36 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
ChatGPT0
Google · Gemini0
Perplexity0
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 →