In meteorology, the term isotherm refers to a contour line that connects points on a weather map that have equal temperatures at a given time. Just as contour lines on topographical maps are used to show gradients of elevation, isotherms are used to show gradients of temperature. Isotherms usually are shown in five- or 10-degree intervals on maps. The temperature differences they delineate are often indicated by different colors. The curve of an isotherm is shaped by variations in temperature across the area being mapped.
Biotin is vital to cell proliferation, which is why it is a valuable tool in hair growth. When ingested, biotin reacts with cell enzymes and plays a vital part in producing amino acids, which are the building blocks of protein.
Biotin as a hair growth supplement does not seem to work better on hair depending on its color. As long as other determining factors are ruled out it is safe and may work right for black hair as much as it does for other hair colors. Still, this is not a guarantee that it will give you positive results. âI take 1 Biotin 5000mcg pill a day, plus 1 mega-multi vitamin and 1 MSM 1000MG per day. I have been taking the Biotin for 10 weeks now and I have noticed a considerable difference in my new growth.