自制生发剂。

all the hair growth tonic has a primary ingredient - capsaicin frutescens. Eating chilli padi makes my head sweat, even on a cold day. Capsaicin is indeed an effective dermal blood flow stimulant. Chilli is 1% capsaicin, and the beijing101 tonic contains up to 6% or more by rough estimate. Oily scalp blocking the hair from growing out of the follicle.
Home-made cayenne liniment is superior to the cayenne oil because it absorbs easily through the skin when it is applied externally. A liniment is usually prepared by steeping rubefacient herbs like cayenne into 70 per cent alcohol for about 10 - 14 days. After filtering, the liniment is then bottled and labelled and is ready for external use. The cayenne oil prepared as indicated above could be added to the liniment to double or to enhance its efficacy. Alternatively, other essential oils like the Eucalyptus oil, oil of cloves, etc could be added to the liniment to improve its healing quality.
You can actually mix cayenne with water, make a paste and massage your scalp with it. You leave it in 20 to 30 minutes and then wash it out. Excellent results have been seen with alopecia, male pattern baldness and excellent results also in women that have lost their hair.
In the early days of medical practice, the practitioners stimulates hair growth in cases of alopecia (hair loss) by massaging the scalp with a mixture of cayenne pepper, and salt into fresh onion juice - cayenne triggers off increased blood circulation to the scalp - which increases its nourishment and hair growth.
Today, most natural hair tonic contains, cayenne or the capsaicin extracted from it as an essential ingredients.
一言以蔽之，把辣椒水外敷在想要生发的部分。