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Hello. I am Dr. Hyocheong Chae, director of Sunyujae Korean Medicine Clinic. The CSAT is already 100 days away.
At this time of year, many students preparing for the CSAT and their parents come to me with the same concerns. “I try to study hard, but my concentration keeps wavering.” “I forget what I’ve memorized quickly. I can’t remember.” “I’m too tired to study for long.” With 100 days left until the CSAT, when your mind is racing but your body and brain aren’t keeping up, what you need right now is a prescription to boost ‘brain concentration and memory’ – I’m here to tell you about Chongmyunggongjindan.

What kind of prescription is Chongmyunggongjindan?
is a Korean medicine-based brain-customized prescription designed to enhance students’ concentration, memory, working memory, and endurance.
Key Components of Chongmyunggongjindan
•Chongmyungtang (Polygala root, Acorus gramineus, Poria cocos) → Memory enhancement, cognitive function improvement, mental and physical stability •Gongjindan (deer antler velvet, Aucklandia lappa, Angelica gigas, Cornus officinalis, honey) → Fatigue improvement, physical strength enhancement, liver function support •Brain-function specialized herbal medicines (Gastrodia elata, Salvia miltiorrhiza, Liriope platyphylla, Dimocarpus longan) → Working memory and concentration improvement, increased brain connectivity

Why should it be taken 100 days before the CSAT?
is not a prescription aimed at immediate effects on the day of the exam. It is a prescription that gradually enhances the brain’s cognitive abilities, endurance, and working memory functions.
▶ After 8 weeks of administration, studies confirmed a statistically significant improvement in working memory performance and an increase in brain connectivity (DTI image analysis). With 100 days remaining, now is the golden time to start preparations so that the effects appear on the day of the exam.

Summary of Chongmyunggongjindan Combination Effects in ADHD Patients
1. Brain Function Activation Research Results • Comparing the group taking methylphenidate (e.g., Concerta) alone with the group taking Chongmyunggongjindan in combination, • After 4 weeks, a significant increase in brain activity was observed in the Precuneus region of the left parietal lobe.
– This area is a key region that is atrophied in ADHD patients. 2. Brain Circuit Reinforcement – Confirmation of Structural Changes • After 8 weeks of Chongmyunggongjindan administration, DTI (Diffusion Tensor Imaging) analysis showed an increase in white matter connectivity.
• This signifies a structural change where the brain’s neural circuits themselves are strengthened, beyond simple temporary functional improvement.

Chongmyunggongjindan Effects
1. Memory Restoration Chongmyungtang clarifies hazy memories. There are also studies showing clear memory recovery when administered to experimental mice with induced memory impairment.
2. Working Memory & Concentration Enhancement Working memory is a core function directly linked to problem-solving, reading comprehension, and arithmetic skills. Chongmyunggongjindan showed significantly improved brain connectivity and working memory performance after 8 weeks of administration.
3. Maintaining Endurance Amidst Sleep Deprivation Many students reduce their sleep to study starting 100 days before the CSAT. Gongjindan is a prescription that helps maintain physical strength and concentration even ‘when sleep is reduced,’ and its effects on fatigue recovery and endurance enhancement have been confirmed.


To ensure your child’s efforts are not in vain, a brain-centered prescription that supports both body and mind is necessary. Just as important as studying is the brain’s stamina to process that study and the cognitive ability to remember and connect information. Chongmyunggongjindan is not just a simple tonic.
It is a scientific Korean medicine prescription that builds a studying brain and an enduring body.
With 100 days left until the CSAT, now is the best time to start Chongmyunggongjindan.
provides individualized treatment and prescriptions based on the student’s constitution and current condition. 👉 If you have any questions, please feel free to inquire right away!

Valuable information for a healthy life We hope you will join Sunyujae Korean Medicine Clinic in sharing. Suji-gu Korean Medicine Clinic Sunyujae pursues evidence-based medicine and integrative medicine.

This post was written directly by the medical staff of Sunyujae Korean Medicine Clinic to provide medical information, in compliance with Article 56(2) and Article 57(3) of the Medical Service Act. The duration and outcome of treatment may vary from person to person, so please consult a qualified practitioner before beginning treatment.
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