Cordyceps Cs-4 150 capsules, 400 mg by JHS Natural Products

What the brand says

Cordyceps sinensis is a highly valued medicinal mushroom in both Classical Chinese Medicine and modern clinical practice. In China it is called "winter worm, summer grass", and the "caterpillar mushroom". Cordyceps is found in the highlands of China, Tibet, and Nepal, above 10,000 feet.