The fruit of cactus is called cactus fruit or immortal fruit, formerly known as Potentilla anserina, which is the fruit of cactus. The shape is obovoid, the top is concave, the length is about 4-6 cm, the diameter is 2.5-4 cm, the surface is smooth and hairless, and there are 5- 10 protruding nests on each side, and the nests have short wool, barbed bristles and drill-shaped thorns.

The pulp of cactus fruit is rich in trace elements, protein, amino acids, vitamins, polysaccharides, flavonoids and pectin.

Cactus fruit extract has the effects of accelerating wound healing, making skin soft and delicate, preventing skin dryness, reducing wrinkles, etc. Because cactus fruit is rich in antioxidants, riboflavin and thiamine (vitamin B 1), it is an excellent nutrient for moisturizing and maintaining skin.

There are three kinds of cactus fruit: white cactus fruit, golden purple cactus fruit and sour cactus fruit. After peeling the white cactus fruit, the flesh is light green and watery, such as jade. The skin and flesh of the golden purple cactus are all golden purple, with juicy pulp and bright color, and the whole body is crystal clear, such as gems.