Koryo Eundan Vitamin C1000 Easy + Vitamin D Review | Korea’s Long-Standing Vitamin Brand — Honest Verdict
UK-Sourced Vitamin C & Swiss-Sourced Vitamin D
An easy-to-swallow combo supplement pairing Vitamin C and Vitamin D — real usage impressions, ingredients, and where to buy internationally
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- What Koryo Eundan Vitamin C1000 Easy + Vitamin D is, and its real packaging
- What 1000mg Vitamin C and 1000IU Vitamin D mean
- Why the “Easy” tablet design is easier to swallow
- How to take it correctly
- Honest reviews — the good and the not-so-good
- Honest downsides to know before buying
Struggling with large, hard-to-swallow vitamin tablets? Want to cover Vitamin C and D in one go?
Koryo Eundan (고려은단) is a long-established Korean vitamin brand with a strong reputation built over many years. This “Vitamin C1000 Easy + Vitamin D” pairs 1000mg of UK-sourced Vitamin C with 1000IU of Swiss-sourced Vitamin D, and true to its “Easy” naming, the tablets are formulated smaller for easier swallowing.
Here’s an honest review based on tablet size, ease of swallowing, and ingredients.
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#VitaminC
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✅ Good for
- Those wanting Vitamin C and D covered together
- Anyone who’s struggled with large vitamin tablets
- Those curious about Korea’s long-standing supplement brands
- Building a consistent daily supplement habit
❌ Not ideal for
- Those with a medical condition requiring restricted vitamin intake (consult a doctor)
- Anyone already taking a separate Vitamin C or D supplement (check for overlap)
- Those who prefer powder or liquid formats over tablets
- Anyone expecting immediate, dramatic results
※ Reviewed based on actual purchase and use in Korea.
- ① What is Koryo Eundan Vitamin C1000 Easy + Vitamin D? A Popular Korean Health Functional Food
- ② Key Ingredients — Vitamin C 1000mg & Vitamin D 1000IU Explained
- ③ How to Take It Correctly
① What is Koryo Eundan Vitamin C1000 Easy + Vitamin D? A Popular Korean Health Functional Food
Health Functional Food
▲ Outer box packaging, labeled “이지 (Easy)” and “영국산 100% (100% UK-sourced)”
▲ Back of packaging (nutrition facts, functional claims, and storage instructions)
💬 My Honest Impression
The set comes with one red Vitamin C tablet and one white Vitamin D tablet, taken together for the daily dose of 2 tablets. As the packaging notes (“smaller tablets, easier to swallow”), these are noticeably more compact than the typical large Vitamin C tablet, and went down easily with water.
The taste itself is unremarkable in a good way — no distracting flavor — which makes it easy to fold into a post-breakfast routine. Individual experience varies, but if you’ve struggled with large tablets before, this one is worth trying 😊
| Brand | 고려은단 (Koryo Eundan / Eundan Health Care) |
|---|---|
| Product Name | Vitamin C1000 Easy + Vitamin D |
| Net Weight | 60 tablets × 2 (120 total, 72g, approx. 60-day supply) |
| Key Ingredients | Vitamin C 1000mg (UK-sourced) · Vitamin D 1000IU (Swiss-sourced) |
| Classification | Korean Health Functional Food (건강기능식품) |
| Origin | Manufactured in Korea · Raw materials sourced from the UK and Switzerland |
② Key Ingredients — Vitamin C 1000mg & Vitamin D 1000IU Explained
Here’s a breakdown of the main ingredients, based on the packaging and ingredient list.
UK-Sourced DSM Raw Material
Under Korea’s functional food labeling standards, Vitamin C carries approved claims including: needed for connective tissue formation and maintenance, needed for iron absorption, and needed for antioxidant activity protecting cells from harmful oxygen species. This product uses UK-sourced DSM raw material, per the packaging. DSM is a globally known supplier of vitamin raw materials.
Swiss-Sourced DSM Raw Material
Vitamin D carries approved claims including: needed for calcium and phosphorus absorption and utilization, needed for bone formation and maintenance, and helps reduce the risk of osteoporosis. This product uses Swiss-sourced DSM raw material.
Designed to Cover Both at Once
Rather than requiring two separate supplements, this product is designed so 2 tablets a day (1 Vitamin C + 1 Vitamin D) covers both — useful for anyone who wants to simplify their routine.
Smaller, Easier-to-Swallow Tablets
“Easy (이지)” is the brand’s own naming for a formulation with reduced tablet size, intended to make swallowing easier for those with a narrower throat, women, and children.
※ The functional claims above are based on labeling language certified by Korea’s MFDS for this Health Functional Food category. They are not claims to treat or prevent any specific disease. Individual experience varies.
③ How to Take It Correctly
2 tablets a day (1 Vitamin C + 1 Vitamin D)
Per the packaging, the daily intake is 2 tablets (1,200mg total). Take with water.
A consistent time, like after breakfast, works well
Taking it after a meal helps you avoid forgetting a dose and tends to be gentler on the stomach. Pick one time that fits your day and stick with it.
Store away from direct sunlight, and reseal after opening
The packaging specifies avoiding direct sunlight and storing at room temperature. Keep the package well-sealed after opening to avoid moisture exposure.
✅ Tips for Consistency
- A fixed time, like after breakfast, makes it easier to build the habit
- Store at room temperature, away from direct sunlight
- Reseal tightly after opening
⚠️ Precautions
- Do not exceed the recommended daily intake
- Watch for overlap if taking other Vitamin C or D supplements
- Those with a medical condition or taking medication should consult a professional
- Keep out of reach of children to prevent accidental ingestion
- Discontinue use and consult a professional if you notice any adverse reaction
④ Koryo Eundan Vitamin C1000 Easy + Vitamin D Reviews & Reputation
Koryo Eundan is a vitamin brand with a long track record in Korea. Here’s a summary of common feedback on this product.
👍 Positive Reviews
- “The tablets are small and easy to swallow” — a common comment
- “Nice not having to buy Vitamin C and D separately”
- “Korea’s long-standing brand reputation is a plus, too”
- “An easy size to keep taking every day”
- 60-day supply offers solid value
👎 Common Complaints
- Noticing a difference takes time — results vary by person
- “Having two different tablet types is a bit more to manage”
- “I’d given up on Vitamin C before because of the huge tablets, but I actually stuck with this one” — a common comment
- “Having the UK and Swiss sourcing clearly labeled adds to the trust factor” — mentioned frequently
⑤ Honest Downsides — What to Know Before Buying
❶ Not a drug — results vary by individual
This is a Health Functional Food, not a medication intended to treat or prevent disease. If you have health concerns, don’t self-diagnose — consult a doctor or pharmacist.
❷ Vitamin D is fat-soluble — worth noting
Unlike Vitamin C, Vitamin D is a fat-soluble vitamin that can accumulate in the body. If you’re also getting it from other supplements or foods, check the labels to avoid an unintentionally high total intake.
❸ Watch for overlap with other Vitamin D supplements
Combining this with other supplements without checking their labels could lead to unintentional over-supplementation. If you’re already taking something else, compare ingredient lists before adding this in.
⑥ Where to Buy
Koryo Eundan Vitamin C1000 Easy + Vitamin D is available at pharmacies, supermarkets, and online marketplaces in Korea, plus internationally through OLIVE YOUNG Global.
🌿 OLIVE YOUNG Global
Official source shipping authentic products directly from Korea. No concerns about parallel imports or counterfeits — a reliable way to buy internationally.
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※ Prices vary depending on exchange rates and promotions. Always check the latest price on the platform before purchasing.
⑦ FAQ — Common Questions
Q. Is it okay to take on an empty stomach?
A. Vitamin C is acidic, so taking it on an empty stomach may cause mild stomach discomfort for some people. If you’re concerned, taking it after a meal is recommended.
Q. Do I need to take the Vitamin C and Vitamin D tablets at the same time?
A. The packaging suggests 2 tablets a day (1 of each) as the standard dose, so taking them together is the intended approach. If you’d prefer to split them up, check the ingredient labeling and adjust based on your own judgment.
Q. Can children or older adults take this?
A. The “Easy” design features smaller tablets for easier swallowing, but follow the age guidance on the packaging. If in doubt, consult a doctor or pharmacist.
Q. Can I take this alongside a multivitamin?
A. If you’re already taking a supplement with Vitamin C or D, combining it with this one risks over-supplementation. Check the ingredient labels of what you’re currently taking, and consult a doctor or pharmacist if you’re unsure.
Q. How long does 120 tablets last?
A. At the recommended 2 tablets per day, one package lasts approximately 60 days (about 2 months).
⑧ Summary — Who Should Try This?
- Those wanting Vitamin C and D covered in one product
- Anyone who’s struggled with large vitamin tablets before
- Those curious about Korea’s long-standing vitamin brands
- People looking for an easy supplement to stick with daily
👍 Overall Pros
- Vitamin C 1000mg + Vitamin D 1000IU covered together
- The “Easy” design makes tablets genuinely easier to swallow
- UK and Swiss raw material sourcing clearly labeled
- 120 tablets — about 60 days’ worth, solid value
- Made by Koryo Eundan, a brand with a long history in Korea
👎 Overall Cons
- Not a drug — results vary by individual
- Requires checking for overlap with other supplements
Koryo Eundan’s Vitamin C1000 Easy + Vitamin D pairs two essential vitamins in one easy-to-swallow format. If you’ve struggled with hard-to-take tablets before, this one is worth adding to your list to check out 😊
🔗 Related Reviews — Korean Health Functional Foods
💡 More popular Korean Health Functional Foods
Like this product, these are other well-known Korean Health Functional Foods. Worth checking out.
LACTO-FIT Core Review
Known as Korea’s “national probiotic,” made by Chong Kun Dang Health — a well-established Korean probiotic supplement.
CJ WELLCARE MelaMate Review
A melatonin gummy sold in Korea, made by CJ Group, featuring tart cherry and chamomile — reviewed honestly with important regulatory notes.
※ This article is intended as general information about a Health Functional Food and does not guarantee any specific effect. If you have health concerns, please consult a doctor or pharmacist. Prices are subject to change — always confirm the latest price before purchasing.
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