Gongjindan for students facing exams: what to expect, and what to check

For parents who want to do something, anything, for a child facing a big exam

Key points in 30 seconds

1. Gongjindan is a formula made from deer antler, angelica root (dang-gwi), cornus fruit and musk. It has long been used to care for a body whose energy is badly drained.
2. In two clinical trials in Korea, fatigue after sleep loss tended to decrease, and in chronic fatigue, mental and social fatigue decreased.
3. There are no Gongjindan studies yet that directly measured grades, memory or concentration. So we don't tell you it will "make you smarter."
4. Before prescribing, we check the cause of fatigue, digestion and constitution, current medications and the possibility of pregnancy, and liver values.
5. Don't start it for the first time right before the exam. Start a few weeks ahead and see how the body responds first.

What we often hear

• "The college entrance exam is coming up soon. Should I at least give my child Gongjindan?"
• "Does Gongjindan improve concentration?"
• "Can't we just start it the day before the exam?"
• "My kid sleeps all day on weekends."

As an exam approaches, the first thing that changes is your child's face.

They sit at their desk late into the night, barely get up in the morning, and stop after a few spoonfuls of food. On weekends, they sleep all day. Watching this, parents wonder whether they should do something, and the name many of them think of is Gongjindan.

In this article, we've written plainly what you can and can't expect if you're considering Gongjindan for a student, and what we check before prescribing it.

What kind of formula is Gongjindan?

Gongjindan is a formula made from four herbs: deer antler, angelica root (dang-gwi), cornus fruit and musk. It was first recorded in a medical text from China's Song dynasty, and is an old formula that many medical texts, including the Donguibogam, have used to care for a body whose energy is badly drained.

Of these, musk is the key ingredient that makes Gongjindan what it is. It's also the most precious and the most difficult to handle.

The reason people consider Gongjindan for students is usually fatigue. Not enough sleep, long stretches of tension, and a daily rhythm that's all over the place. Parents can see that state where the student wants to study but the body won't keep up, and Gongjindan has traditionally been prescribed for exactly this kind of drained body.

How far has research confirmed it?

Two clinical trials in Korea have compared Gongjindan with a placebo (dummy pill).

• Fatigue after sleep loss. Healthy adult men were kept awake for two nights to create fatigue, then took Gongjindan and a placebo in turn. When they took Gongjindan, fatigue showed a tendency to decrease, but not to a level that could be called statistically certain. The researchers summed it up as first clinical evidence showing a possibility, and said larger studies are needed.
• Long-lasting fatigue. In a study of adults with unexplained fatigue lasting more than six months, mental fatigue and social fatigue were reported to decrease.

We'll be honest about this too. There are no Gongjindan studies yet that directly measured students' grades, memory or concentration. So we don't tell you that Gongjindan will raise grades or make you smarter.

This is as far as we can say. It has been used as a formula to care for fatigue when sleep is short and energy is drained, and research in that direction is slowly building up.

What's different about the Ssial Gongjindan we prescribe?

Musk is a strongly scented herb. When it's mixed with other herbs and rolled into a pill, its components can slowly escape into the air over time. Even with the same formula, how well the musk is preserved until the moment you take it can depend on how the pill is made.

Ssial Gongjindan ("ssial" means seed or kernel) is made with a patented method designed to solve this problem.

• The musk is rolled together with deer antler into a small inner core.
• That core is fully wrapped in an outer shell made of angelica root, deer antler and cornus fruit, so the musk isn't exposed to the outside air.

Picture a peach pit wrapped in the fruit. The musk components are protected inside the outer shell until you take it, and if you cut one in half, you can see the musk-filled core in the middle with your own eyes.

However, this patent is about a manufacturing method that preserves the musk. It has not been clinically proven to work better than other Gongjindan. We chose this method because we want to deliver a precious herb to you exactly as prescribed.

What do we check before prescribing?

Even when made with good herbs, Gongjindan doesn't suit every student equally. So we always check the following before prescribing.

First, the cause of fatigue. Most fatigue in students comes from lack of sleep, but other causes such as anemia or thyroid problems can be hiding behind it. Because we base our care on blood tests, we check for these causes with a blood test when needed. If there's a separate cause, we deal with that first.

Second, digestion and constitution. If the stomach is often upset or the student has a constitution that runs hot, we may adjust the formula, or a different formula may be a better fit.

Third, current medications and the possibility of pregnancy. If other medications are being taken, please be sure to tell us. If there's any chance of pregnancy, you must let us know. Musk is an herb that should be avoided during pregnancy.

Fourth, liver values. If you're worried about herbal medicine and the liver, you can check with a blood test before starting. The numbers are summarized in Does herbal medicine harm the liver? We looked at the numbers.

Can't we start it the day before the exam?

We don't recommend it. With any formula, when you first take it, you need time to see how your body responds. An upset stomach or a change in sleep shouldn't show up for the first time on exam day.

If you're considering it, come in a few weeks before the exam and start then, so you can check how the body responds first.

What Gongjindan can't replace

No formula can replace sleep. In the end, what shapes a student's condition most is a rhythm of going to bed and getting up at regular times, and eating meals on time.

Gongjindan is a formula that supports a body working hard to keep those basics. It's not a medicine that lets you get through all-nighters.

How we work

First, we sort out the cause of fatigue. We ask about sleep, meals, digestion and current medications, and if needed, check for anemia, thyroid and liver values with a blood test.

Second, we look at the rhythm of sleep and meals together. If the rhythm has fallen apart, we work on fixing that first. At this step, we also decide whether the student is in a state that calls for Gongjindan, or whether a different formula fits better.

Third, we check the response as we go. Starting a few weeks before the exam, we check how digestion, sleep and fatigue change. We don't prescribe without evidence.

What changes

On the morning of the exam, your child heads out the door saying, "I slept well last night." Over the long exam period, the body doesn't give out first, but stays with them to the end.

That's what we hope for.

Whether a formula is needed, and how a student responds after taking it, depends on their constitution and health.

Today's takeaway

Gongjindan is a formula for caring for a tired body, and the cause of fatigue and the body's condition should be checked before starting. Start a few weeks before the exam.

There's just one thing to do today. For one week, write down only what time your child goes to bed, what time they get up, and whether they eat breakfast. Bring that record with you, and we'll help you decide whether Gongjindan is needed, or whether fixing sleep and meals comes first. We're open until 8:30 p.m. on weekdays, and on weekends and public holidays too, so it's not hard for students to find time.

Our principles for prescribing herbal medicine are summarized in Test-based herbal medicine.

For questions or appointments, message us in English through the messenger at the bottom right of the page, or call +82-53-716-1175.

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References

1. Son MJ, et al. An herbal drug, Gongjin-dan, ameliorates acute fatigue caused by short-term sleep-deprivation: a randomized, double-blinded, placebo-controlled, crossover clinical trial. Front Pharmacol. 2018;9:479. doi:10.3389/fphar.2018.00479
2. Choi JY, et al. Efficacy and safety of herbal medicine Gongjin-Dan and Ssanghwa-Tang in patients with chronic fatigue: a randomized, double-blind, placebo-controlled, clinical trial. Integr Med Res. 2024;13(1):101025.
3. Korean Patent No. 10-1744704, "Gongjindan minimizing the loss of active ingredients and method for manufacturing the same."