Patchouli Zhengqi Shui is a medicine for internal use, not for washing hair, no effect of washing hair to make gray hair black.
Patchouli Zhengqi Shui is a proprietary Chinese medicine, composed of Dabu Pi, Sheng Half Xia, Hou Pu (ginger system), Angelica dahurica, Atractylodes macrocephala, Chen Pi, Poria cocos, Patchouli oil, Perilla frutescens leaf oil, licorice infusion, and supplemented with ethanol. The efficacy of this product is to relieve the surface and resolve dampness (relieving the evil of external infection and dispelling the dampness in the body), regulate qi and harmonize the middle (regulating the qi of the spleen and stomach, so as to make the function of the spleen and stomach smooth).
It is used to treat colds and flu caused by summer heat and dampness (the human body is easily violated by summer heat and dampness in summer), external wind-cold and internal dampness stagnation (the stagnation of dampness in the body caused by too cold diet, etc.).
It is also used for gastrointestinal colds and flu, manifesting as distension and pain in the stomach and abdomen (stomach and abdominal swelling and pain), vomiting and diarrhea, headache and weight loss, and chest and diaphragm constriction.
Adverse effects of this product are may cause palpitations, nausea, skin rash. It is contraindicated in people who are allergic to alcohol and its components. Note that if the symptoms are not relieved after taking this product for 3 days, you should go to the hospital.
From the point of view of the efficacy of Patchouli Zhengqi Shui, this product is mainly used to treat colds, is a drug for internal use, is not used for shampooing, and does not have the efficacy of making gray hair black.
The drug should be taken under the guidance of a physician, do not self-medication, to avoid causing adverse consequences.