No. According to the official website of Inquiry Rights Star, the PRETTYGIRLENVOY category 29-food trademark was applied by the applicant Lan Chao on 2019-11-26, and the PRETTYGIRLENVOY category 3-daily chemicals trademark was applied by the applicant Lan Chao on 2019-10-09 The trademark, PRETTYGIRLENVOY Class 10-Medical Device Trademark, is a trademark applied by applicant Lan Chao on 2022-10-24. So Yuanzhi Brand is not a pyramid scheme. Yuanzhi brand is involved in many fields, the most representative of which are food, daily chemicals, medical equipment, clothing and other fields.