At present, it seems that there is no way to remove freckles by using coriander, and I don't know where you found the freckle remedy. Moreover, coriander is a photosensitive vegetable, which will lead to spot proliferation under the irradiation of sunlight. In addition, the treatment of freckles must avoid using cosmetics or drugs containing hormones, which may be effective at first, and the result can only aggravate the condition. At present, decoloring agents, freezing and laser treatment are commonly used in clinic. Chinese medicine fire needle can be considered to treat freckles, and it is suggested; Crush fresh carrots, squeeze juice, take 1-3ml, wash your face every morning and evening, then smear it, and then wash it when it is dry. In addition, drinking a glass of carrot juice every day can whiten the skin and remove spots, or adding 1-2 tablespoons of vinegar to the water when washing your face can reduce pigmentation.