What effect does Platycladus orientalis leaves have on hair

Platycladus orientalis leaf is a common Chinese medicine, also known as yellow heart white. It has certain therapeutic and conditioning effects. For hair, it has the effect of promoting hair growth and promoting the blackening of white hair. It has a good effect of nourishing blood and activating blood circulation. In addition to its conditioning effect on hair, it also has certain antibacterial and antiviral effects, and has a certain protective effect on the nerves.

1. Promotes hair growth and darkens hair.

Platycladus orientalis leaves are bitter and cold, and enter the liver meridian. The liver governs wind and stores blood, and hair is the residue of blood, so it can cool blood and blacken hair. It is often used for hair loss due to blood heat or premature graying of hair. "New Medicine" reported: "Soak fresh Platycladus orientalis leaves in 60% ethanol for 7 days, apply the liquid to the hair loss area 3 times a day to treat hair loss in various places. New hair will start to grow after 20 to 30 days. It is black and shiny, and some hair grows thinner."

2. Cool blood and stop bleeding.

Platycladus orientalis leaves are bitter and slightly cold, and enter the lung, liver, and large intestine meridians. The astringency can astringe, while the bitterness and coldness can clear away heat and cool the blood. Therefore, it is an astringent, blood-cooling and hemostatic drug, and is used for symptoms such as vomiting blood, coughing up blood, blood in the stool, hematuria, and metrorrhagia caused by excessive heat in the blood.

3. Antibacterial and antiviral effects.

The alcohol extract of Platycladus orientalis leaves has a strong inhibitory effect on the biosynthesis of leukocyte LTB4 and 5-HETE (5-lipoxygenase), and also shows a strong inhibitory effect on cyclooxygenase, suggesting that Platycladus orientalis leaves exert their anti-inflammatory effects by inhibiting the activity of 5-lipoxygenase and the components of cyclooxygenase.

4. Neuroprotective effect.

The 90% methanol extract of Platycladus orientalis leaves has a significant protective effect on damage to primary cultured rat cortical cells induced by excessive glutamate, and 5 components with neuroprotective activity were isolated, among which only the resin derivative has a significant neuroprotective effect.

5. Anti-oxidation of red blood cells.

Adding flavonoids extracted from Platycladus orientalis leaves to red blood cell suspension can significantly inhibit H2O2-induced human RBC hemolysis, and the hemolysis degree and malondialdehyde content both decreased. The inhibition was enhanced with the increase of flavonoid dosage, which provides an experimental basis for the clinical application of Platycladus orientalis leaves to prevent RBC oxidative damage and hemolytic diseases.

6. Clear away heat and relieve cough.

Platycladus orientalis leaves are bitter and cold, and cold can clear away heat. They also enter the lung meridian, so they can clear away heat and relieve cough. It is commonly used in modern times for patients with lung heat cough, dry or thick phlegm that is difficult to cough out. It has the effect of clearing lung heat and relieving cough and asthma.

Dispel wind and dampness.