Generally, it will take two weeks to see the effects of the treatment, and the effect lasts three to six months. Over time, you may require fewer treatments because weaker muscles atrophy and require fewer injections.
The hibiscus is a heavy feeder that prefers frequent but light fertilizing. A nitrogen fertilizer in the spring and a high potassium fertilizer in the summer work well for the hibiscus plant. Also, fertilizing at the beginning and during the growing season gives the hibiscus needed nutrients for growth.
You actually have to use both the hibiscus flower and the leaf for hair growth. All you have to do is collect the leaves and petals of hibiscus. Make sure you collect a lot because you have to crush it and get the juice out of it. Traditionally people have used a mortar and pestle to crush it.