PharmGen Science Launches Korea's First '8-Hour Sustained' Complex Vitamin B

by Jo Inkyung

Published 08 Jul.2026 08:40(KST)

Long-lasting Effect After Intake with Sustained-Release Technology

On July 8, PharmGen Science announced that it would launch "VitainB," Korea's first sustained-release complex vitamin B supplement. This marks the first time that sustained-release technology has been applied to a vitamin B complex, rather than a single ingredient.

PharmGen Science Launches Korea's First '8-Hour Sustained' Complex Vitamin B

The vitamin B group is an essential nutrient involved in overall energy metabolism and is closely linked to chronic fatigue in modern people. However, as water-soluble vitamins, they are quickly excreted from the body. With general vitamin B supplements, blood concentration rises rapidly after intake but is excreted in urine within a few hours, making it difficult to maintain a constant blood level throughout the day, even with high doses.

PharmGen Science applied sustained-release technology to ensure that the active ingredients are gradually released over 8 hours after intake. This allows for a stable supply of vitamin B from morning to evening with just one pill, significantly improving the inconvenience of having to take 2 to 3 doses a day or use multiple products simultaneously.

VitainB boasts a high dosage, providing up to 8,333% of the daily nutritional value for vitamin B1 per tablet. Each tablet contains five types of vitamin B: B1 at 8,333%, B6 at 6,667%, B2 at 3,571%, pantothenic acid at 2,000%, and niacin at 333% of the recommended daily intake.

Despite its high dosage, gastrointestinal discomfort is minimized. Typically, taking large amounts of high-dose vitamin B, especially niacin (B3), at once can cause rapid increases in blood concentration, leading to symptoms such as flushing, a feeling of warmth, and stomach discomfort. However, since VitainB releases its ingredients gradually over 8 hours, it prevents sudden spikes in blood levels.