Ask KBeauty Verified™
KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
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Two Slash Four Flash Reflecting Skin Finisher

Toner

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Check against official records

KR South Korea (MFDS)

6 ingredients with Korea limits or conditions.

Mica, Talc, Zinc Stearate, Ultramarines, Tocopherol, Sodium Benzoate
EU European Union (CosIng)

2 ingredients with EU limits or conditions.

Talc, Titanium Dioxide
US United States (FDA)

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

#Ingredient (as listed)KR KoreaEU EUUS U.S.
1 MICA Restricted ——
2 KAOLIN —Approved colorant —
3 TALC Restricted Restricted —
4 OCTYLDODECYL STEAROYL STEARATE ———
5 ZINC STEARATE Restricted Approved colorant —
6 MAGNESIUM MYRISTATE ———
7 ALUMINUM STARCH OCTENYLSUCCINATE ———
8 SILICA ———
9 CAPRYLIC/CAPRIC TRIGLYCERIDE ———
10 POLYMETHYL METHACRYLATE ———
11 HDI/TRIMETHYLOL HEXYLLACTONE CROSSPOLYMER ———
12 TITANIUM DIOXIDE (CI 77891) Approved UV filter · 25% Restricted · (a) 25% · (b) 1,4% ·… Approved UV filter · 25%* Approved UV filter · 25%
13 CAPRYLYL GLYCOL ———
14 ETHYLHEXYLGLYCERIN ———
15 HYDROGENATED LECITHIN ———
16 DIMETHICONE ———
17 ULTRAMARINES (CI 77007) Restricted Approved colorant —
18 ALUMINUM MYRISTATE ———
19 TOCOPHEROL Restricted · 20% ——
20 WATER (AQUA) ———
21 BUTYLENE GLYCOL ———
22 ENANTIA CHLORANTHA BARK EXTRACT ———
23 CETYL PALMITATE ———
24 SORBITAN STEARATE ———
25 POLYSORBATE 80 ———
26 1,2-HEXANEDIOL ———
27 SODIUM BENZOATE Restricted Approved preservative · a) 2.5% · b) 1.7% · c)… —
28 CITRIC ACID —Approved preservative · 0,2% · 0,0024% —
29 OLEANOLIC ACID ———
30 PALMITOYL TETRAPEPTIDE-10 ———
31 AMETHYST POWDER ———
32 TOURMALINE ———
33 DIAMOND POWDER ———
34 TOPAZ ———
35 RUBY POWDER ———

“—” 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 Two Slash Four official store, retrieved Oct 17, 2026. Formulas change — check the label on the package you buy.

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

“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:

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 Mica, Sodium Benzoate, Talc, Titanium Dioxide, Ultramarines
AS ASEAN (10 countries) None found Mica, Sodium Benzoate, Talc, Titanium Dioxide, Ultramarines, Zinc Stearate
JP Japan None found Sodium Benzoate
TW Taiwan None found Citric Acid, Mica, Sodium Benzoate, Titanium Dioxide, Ultramarines, Zinc Stearate
CA Canada None found Citric Acid, Talc, Titanium Dioxide
BR Brazil None found Citric Acid, Mica, Sodium Benzoate, Talc, Titanium Dioxide, Ultramarines, Zinc Stearate
AR Argentina None found Citric Acid, Mica, Sodium Benzoate, Talc, Titanium Dioxide, Ultramarines, Zinc Stearate

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.

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dasique Blending Mood Cheek - 09 Almond Vanilla Other · $22.00
27% similar · Shares 13 of this product's first 20 ingredients, including Ultramarines and Tocopherol.
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25% similar · Shares 10 of this product's first 20 ingredients, including Ultramarines.
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Based on the listed ingredients only; recalculated weekly. Not a judgment of which product is better, safer or the same.

Compare with

Two Slash Four vs Two Slash FourFlash Reflecting Skin Finisher vs Glaze lip sleeping boosterTwo Slash Four vs Two Slash FourFlash Reflecting Skin Finisher vs Glaze lip changer (Exp. Date Varies by Item)Two Slash Four vs Two Slash FourFlash Reflecting Skin Finisher vs Sculpt lip shaper (Exp. Date Varies by Item)Two Slash Four vs Two Slash FourFlash Reflecting Skin Finisher vs Strobing face cubeTwo Slash Four vs Two Slash FourFlash Reflecting Skin Finisher vs All over face blushTwo Slash Four vs Two Slash FourFlash Reflecting Skin Finisher vs Erasing face cube

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 Two Slash Four Flash Reflecting Skin Finisher allowed in the European Union?

We found no prohibited ingredients. 2 ingredients have limits or conditions in the EU's CosIng records (Talc, Titanium Dioxide). That usually means a maximum amount, a product type or a label warning — not a ban.

Is Two Slash Four Flash Reflecting Skin Finisher allowed in South Korea?

We found no prohibited ingredients. 6 ingredients have limits or conditions in Korea's MFDS records (Mica, Talc, Zinc Stearate, Ultramarines, Tocopherol, Sodium Benzoate). That usually means a maximum amount, a product type or a label warning — not a ban.

Is Two Slash Four Flash Reflecting Skin Finisher 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.

Does Two Slash Four Flash Reflecting Skin Finisher 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 Two Slash Four Flash Reflecting Skin Finisher?

Ingredient lists are in descending order of amount down to about 1%. The first five listed are: MICA, KAOLIN, TALC, OCTYLDODECYL STEAROYL STEARATE, ZINC STEARATE. In total 35 ingredients are listed.

Where does this ingredient list come from?

From Two Slash Four 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: 2 ChatGPT: 0 Google · Gemini: 0 Perplexity: 0 Meta AI: 0 Amazon: 0 Others: 0
Read by AI & crawlers
Claude2
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 →