1. Fang Ding stock solution is a herbal stock solution developed by Fang Ding Medical Science and Technology Shanghai Co., Ltd., which is prepared by extracting the essence of herbal plants. The reason why Fang Ding stock solution is expensive may be related to its R&D, preparation technology, material source, sales channels and publicity expenses.

2. The development and preparation of Fang Ding stock solution may be complicated, which requires a lot of manpower, material resources and financial resources. The extraction and refining of herbaceous plants is a high-tech and high value-added industry, which requires professional technical teams and equipment, and herbaceous plants themselves are relatively expensive.

3. Fang Ding stock solution is sold through hospitals, clinics, health care stores and other formal channels. The sales cost of these channels is relatively high, which will also affect the pricing of products.