You are asking whether you can buy foot patches without trademarks or brands on Pinduoduo? Can't buy it.

Foot patches without trademarks or brands may be Sanwu products or imitation or second-hand products. There is no quality assurance, so you cannot buy them.

Foot patch is a physiotherapy health care product with a long history in China. It is a traditional Chinese medicine foot care product that is administered subcutaneously on the soles of the feet. Applying different medicines to the Yongquan point on the soles of the feet can warm the meridians, dispel cold, and induce fire to return to the original state. It mainly treats symptoms of deficiency and cold, and also has certain effects on promoting sleep and relieving fatigue.