The difference in combinations will determine what pigment color of hair an individual follicle takes. That's why people have so many unique varieties of hair throughout their body. There is the possibility of variance in each individual follicle.
To answer your question, the expression of eumelanin (brown/black) and pheomelanin (reddish) pigments in hair is not the same in various places on your body, so you can have higher ratios of eumelanin/pheomelanin in your pubic hair/armpit hair, resulting in the darker color.
When puberty kicks in and all the pubertal body hair starts to grow in, the genes expressed to make it are a different subset than the genes turned on in head-hair follicles, so the hair produced can be somewhat different.
Melanin Types: There are two main types of melanin: eumelanin (which can be brown or black) and pheomelanin (which is yellow or red). Your beard and eyebrows may have a higher concentration of eumelanin, leading to darker colors, while your scalp hair may have more pheomelanin, resulting in a blonde appearance.
Blonde individuals can have blonde beards and body hair, but it varies by person. Hair color is determined by genetics, and while many blonde people have lighter body hair and facial hair, others may have darker hair in those areas due to different genetic factors.
Peach fuzz doesn't grow back thicker after you remove it. New vellus hairs may seem to be coming in thicker than they were before, but they're not. It just seems like the hairs are thicker after shaving or removing them because the top part of the new hair has to push through your skin's surface as they grow back.
Interestingly, natural blondes are increasingly rare, constituting only about 2% of the global population, according to the WHO. So why the comparative scarcity of towheads? The alleles for light hair are recessive genetic traits.
Blonde hair can look gorgeous with dark skin, but it's important to know which shade of blonde will work best and which shades will be too extreme. Just like with medium skin, dark skin can also be accented with honey blonde and blonde-brown shades.
Hormones, particularly testosterone, play a significant role in the growth and pigmentation of facial hair. The increased sensitivity of beard follicles to testosterone can influence melanin production, potentially emphasizing red or golden tones.
Blonde facial hair is like a rare whiskey — it's not for everyone, and that's exactly why it's awesome. While most guys are busy trying to blend in with the dark scruff of the masses, your golden beard will stand out in the best way possible.
Based on these findings, we hypothesize that pubic hair evolved with a thicker cuticle layer to better protect the hair interior, especially in environments that come into contact with urine.
The color of the hair is determined by the amount of melanin in the hardened cells. This can vary a lot from person to person, and it changes over the course of a lifetime.
Hypertrichosis is defined as excessive hair growth anywhere on the body in either males or females. It is important to distinguish hypertrichosis from hirsutism, which is a term reserved for females who grow an excessive amount of terminal hairs in androgen-dependent sites.
That is because the hair follicles on your body have different colors and textures in them. Some hair follicles on your body produce a darker color than others. If you take a look at all of the hair on your body, you may notice that the hair at your eyebrow is the darkest color on your skin.
In most cases, the color of your pubic hair is closest to the natural color of your eyebrows. Throughout life, the melanin in your body decreases. This makes hair lighter and eventually grows gray, both on the head and in the pubic area.
The hair life cycle of your beard hair is shorter than your head hair. As a result, more melanocytes may be used at a faster rate. Another reason your beard hair appears gray faster than your head is visual. Your beard is front and center on your face, so you'll likely notice every gray hair growing.
This puzzling phenomenon traces back to our genetics and the MC1R gene we've discussed before. This gene, which also influences skin color, behaves differently in different people. For some, a mutation in the MC1R gene may only affect the beard hair, leading to a different color than the hair on their head.
“Butterscotch blonde is a multidimensional hair color that blends several warm tones, such as gold, caramel and honey, to create depth,” says celebrity hairstylist Kelly Novobielski.
Genetics: The primary reason for why your hair color changes over time lies in genetics. Blonde hair has less melanin, particularly eumelanin, compared to brown or black hair. As individuals age, their predetermined genetic programming can “order” an increase in melanin production which gradually darkens hair color.
Light caramel brown hair is often referred to as honey brown hair, and typically features golden highlights in place of the classic bronze and amber tones. Darker variations of the shade include chestnut, toffee, and even golden chocolate brown.
There is some evidence that natural blond hair is associated with high levels of prenatal testosterone.
Human hair comes with all sorts of colors, textures and shapes. Notably, African hair is more coiled and dry; Asian hair is straighter and thicker; and Caucasian hair is somewhere in between with around 45% having straight hair, 40% having wavy hair, and 15% having curly hair.