Pearl powder, with a cold nature and a sweet and salty taste, belongs to the heart and liver meridians. It is a traditional delicacy that combines the effects of calming the mind and beautifying the skin. Its core lies in calming the mind and soothing the spirit, which can relieve palpitations, insomnia, convulsions, and irritability. It is also good at clearing the liver and improving eyesight, alleviating red eyes, cataracts and blurred vision. It is particularly well-known for its power to beautify and nourish the skin. When taken internally, it can clear heat and nourish Yin, make the skin tender and fair, and fade scars. When used externally, it can promote wound healing and heal sores and regenerate muscle. It can be said to be an excellent internal and external medicine that combines calming, improving eyesight and moisturizing the skin. However, it should be noted that it is cold in nature, and those with weak spleen and stomach and coldness should use it with caution.