Korean ginseng (Panax ginseng) is more stimulating, boosts energy, and is better suited for fatigue, low blood pressure, and cold sensitivity. American ginseng (Panax quinquefolius) is milder with more calming properties, suitable for stress, overheating, and anxiety. Both contain ginsenosides but in different ratios — Korean ginseng's Rg1 type is stimulating, American Rb1 type is more calming.

The recommended dose of standardized ginseng extract is 200-400 mg per day (4-7% ginsenosides). For dried root powder, a typical dose is 1-2 g per day. Take in the morning or first half of the day, as late consumption may disrupt sleep. Ginseng is recommended cyclically — 8 weeks of use followed by 1-2 weeks off.

Yes, ginseng has shown improvements in cognitive function across multiple clinical studies. Ginsenosides improve brain blood supply, support neurotransmitter balance, and protect neurons from oxidative stress. Korean ginseng at 200-400 mg daily improves memory, reaction time, and mental energy, especially during stressful periods.

Ginseng is generally well tolerated, but Korean ginseng at high doses may cause insomnia, headaches, elevated blood pressure, and digestive disturbances. Do not combine ginseng with anticoagulant medications, diabetes medications, or stimulants (high caffeine doses) without a doctor's approval. American ginseng is milder with fewer side effects.

Yes, ginseng boosts energy differently from caffeine — it does not create a sudden energy spike followed by a crash. Ginseng supports mitochondrial energy production, improves oxygen utilization, and helps the body adapt to stress. Energy improvement is often noticeable after 1-2 weeks of regular use. Ginseng can be taken with coffee, but start with smaller doses.