There are many brands, but many brands are not produced at all, but are branded. Many brands are mixed with rapeseed oil, and even rapeseed oil is mixed with sesame oil. "Red Nanliang" brand linseed oil is very good. It is pure linseed oil. You can try it. China flax is mainly produced in Gansu, Ningxia, Inner Mongolia and other regions. Pingliang Qingyang area in Gansu has always been the main flax producing area in history, and the local people have a tradition of eating flax oil. "Red Nanliang" brand pure linseed oil is made of linseed seeds from Gansu, Ningxia and other places. Because of the unique climate and soil conditions in this raw material producing area, the output of linseed seeds is low, the seed skin is thick and the oil yield is low. In addition, the non-transgenic planting and green and pollution-free growth environment have produced excellent oil quality.