Ginsenoside Rb1 is a ginsenoside found in *Panax ginseng* and *Panax japonicus* var. major. It is derived from ginsenoside Rd, with the beta-D-glucopyranoside group at position 20 replaced by a beta-D-glucopyranosyl-beta-D-glucopyranoside group. It functions as a neuroprotective agent, anti-obesity agent, anti-inflammatory drug, apoptosis inhibitor, radical scavenger, and plant metabolite. It is classified as a ginsenoside, glycoside, and tetracyclic triterpenoid, and is functionally related to ginsenoside Rd.