Gwak Cheol-i's Fatigue improvement Articles
Expert information and articles — Gwak Cheol-i
"Is This Product Any Good?" We're Fully Disclosing How YakAl Evaluates Vitamin E!
YakAl pharmacist fully discloses vitamin E supplement evaluation criteria. Absorption rate differences between natural (d-alpha) and synthetic (dl-alpha), GMP certification, NON-GMO labeling, and dual antioxidant care with selenium. Must-read before choosing a product!
- Antioxidant
- Vitamin E
- Selenium
42619 min read
Vitamin E: Should You Take a 1-Month Break After 3 Months of Use?
How long should you take vitamin E? We've organized everything from recommended daily intake and long-term use guidelines to 400IU high-dose precautions, reasons for taking it with meals, and dosage duration by purpose—skin health, PMS, male infertility, and fatty liver—based on pharmacist standards.
- Antioxidant
- Vitamin E
- Skin health
- Immunity
35465 min read
Antioxidant Combo: Vitamin C Revives Vitamin E
Vitamin C and Vitamin E are both antioxidant vitamins, but they work at different locations and eliminate different types of free radicals. We've organized why you need to take both together and the mechanism by which vitamin C regenerates vitamin E, all explained simply from a pharmacist's perspective.
- Antioxidant
- Vitamin E
- Vitamin C
14946 min read
What Does a Pharmacist Look for When Choosing Vitamin C?
Vitamin C products are evaluated based on country of origin labeling, packaging method, and price per serving. A pharmacist has compiled vitamin C selection criteria, recommending checkpoints for raw material origin, GMP certification, liposome vs. extended-release differences, and excipient considerations all in one place.
- Antioxidant
- Vitamin C
15557 min read
Everything You Need to Know About Choosing Your Vitamin E.
Distinguishing natural vs. synthetic alpha-tocopherol through labels, avoiding high-dose products due to toxicity risk from excessive vitamin E intake, focusing on alpha-tocopherol rather than mixed tocopherols.
- Kwak Chul-yi
- Antioxidant
- Vitamin E
13266 min read
All About Vitamin E, the Representative Vitamin for Antioxidant Action!
Effects of anti-cancer, heart disease prevention, high blood pressure improvement, delayed aging, skin protection, neuroprotection, PMS, etc.; research results on effects in improving disease symptoms, immature fetuses and premature infants, immature anemia, heart disease, immune response, etc.
- Kwak Chul-yi
- Antioxidant
- Vitamin E
02286 min read
Tired in the Information Flood, Wondering Which Vitamin C to Take? Here's Your Guide!
Packaging: PTP + aluminum pouch, Raw materials: country of origin, naturally derived (corn) extract, NON-GMO, Dosage: daily nutrient reference value % (divided doses, split tablets, tablet/powder form), secondary ingredients, additives and excipients, certification marks, and other selection criteria.
- Kwak Chul-yi
- Antioxidant
- Vitamin C
04616 min read
Everything You Need to Know About Vitamin C, an Essential Nutrient You Must Consume!
Vitamin C deficiency is common in modern people who struggle to maintain a balanced diet. It is susceptible to heat and moisture, making it easily destroyed during cooking, which makes it difficult to obtain through cooked foods. Additionally, as a water-soluble vitamin, it does not accumulate in the body and is excreted after a certain period of time, requiring consistent intake.
- Kwak Chul-yi
- Antioxidant
- Vitamin C
- Connective tissue
02085 min read