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Isntree Hyper Vitamin C 23 Serum 20ml

Serum

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Check against official records

KR South Korea (MFDS)

2 ingredients with Korea limits or conditions.

Tromethamine, Tocopherol
EU European Union (CosIng)

1 ingredient with EU limits or conditions.

Tromethamine
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 Ascorbic Acid ———
3 Propanediol ———
4 Betaine ———
5 1,2-Hexanediol ———
6 Polyglycerin-3 ———
7 Tromethamine Restricted Restricted · Maximum secondary amine… —
8 Ethyl Ascorbyl Ether ———
9 Hydroxyethyl Urea ———
10 Betula Platyphylla Japonica Juice ———
11 Ethylhexylglycerin ———
12 Adenosine ———
13 Disodium EDTA ———
14 Panthenol ———
15 Gardenia Florida Fruit Extract ———
16 Dextrin ———
17 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 Isntree 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 Tromethamine
AS ASEAN (10 countries) None found Tromethamine
JP Japan None found Panthenol
TW Taiwan None found —
CA Canada None found —
BR Brazil None found Tromethamine
AR Argentina None found 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.

Tia'm Vitamin C 24 Surprise Serum Serum
40% similar · Shares 4 of this product's first 17 ingredients, including Ethyl Ascorbyl Ether and Tocopherol.
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0 1 0 0 0 0 0 1
Round Lab Birch Moisturizing Serum Serum
33% similar · Shares 9 of this product's first 17 ingredients, including Betula Platyphylla Japonica Juice, Polyglycerin-3 and Tocopherol.
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0 2 0 0 0 0 0 2
Tia'm Vita B3 Mist Toner Toner
32% similar · Shares 5 of this product's first 17 ingredients, including Ethyl Ascorbyl Ether and Panthenol.
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0 1 0 0 0 0 0 1
Etude SoonJung pH 5.5 Relief Toner 350ML Toner
28% similar · Shares 9 of this product's first 17 ingredients, including Polyglycerin-3, Betaine and Panthenol.
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0 2 0 0 0 0 0 2
Nature Republic HYATHENOL ESSENCE & AMPOULE Serum
25% similar · Shares 11 of this product's first 17 ingredients, including Polyglycerin-3, Betaine and Panthenol.
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Based on the listed ingredients only; recalculated weekly. Not a judgment of which product is better, safer or the same.

Recalls & alerts for Isntree

Compare with

Isntree vs IsntreeHyper Vitamin C 23 Serum 20ml vs Aloe Soothing Gel Moisture Type 150mlIsntree vs IsntreeHyper Vitamin C 23 Serum 20ml vs C-Niacin Toning Cream 50mlIsntree vs IsntreeHyper Vitamin C 23 Serum 20ml vs C-Niacin Toning Ampoule 50mlIsntree vs IsntreeHyper Vitamin C 23 Serum 20ml vs Green Tea Fresh Cleanser 120mlIsntree vs IsntreeHyper Vitamin C 23 Serum 20ml vs Green Tea Fresh Toner 200mlIsntree vs IsntreeHyper Vitamin C 23 Serum 20ml vs Green Tea Fresh Emulsion 120ml

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 Isntree Hyper Vitamin C 23 Serum 20ml allowed in the European Union?

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

Is Isntree Hyper Vitamin C 23 Serum 20ml allowed in South Korea?

We found no prohibited ingredients. 2 ingredients have limits or conditions in Korea's MFDS records (Tromethamine, Tocopherol). That usually means a maximum amount, a product type or a label warning — not a ban.

Is Isntree Hyper Vitamin C 23 Serum 20ml 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 Isntree Hyper Vitamin C 23 Serum 20ml 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 Isntree Hyper Vitamin C 23 Serum 20ml?

Ingredient lists are in descending order of amount down to about 1%. The first five listed are: Water, Ascorbic Acid, Propanediol, Betaine, 1,2-Hexanediol. In total 17 ingredients are listed.

Has Isntree had any recalls or official alerts?

Yes — we have 3 official records linked to the brand or this product. The latest is from May 2025 (EU). See the list on this page for each source.

Where does this ingredient list come from?

From Isntree 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 →