After shaving/hair removal, is the newly grown hair really dense?

The beard on the man’s face, the body hair on the woman’s leg, these nasty hair makes people feel bad. For the sake of beauty, we always use a razor to clean these hairs as much as possible. However, many of us are doing this depilatory work, and we feel that it is futile in our hearts, because we believe that this routine hair removal will only make the hair grow denser and darker.

However, this is not the case. After shaving or hair removal, the newly grown hair will not be denser. There are several reasons behind the misunderstanding of people. One is that humans have limited insight. “People are not good at observing, and they grow denser and have no scientific basis after shaving,” said Amy McMichael, head of the Department of Dermatology at Wake Forest University’s Baptist Health Center. Another reason is coincidence: indeed, if a young male has a beard, the newly grown beard may indeed be thicker. However, this is because the behavior of shaving coincides with fluctuations in the level of hormones that affect hair growth in the body and has nothing to do with the shaving behavior itself. The growth rate of human hair is different at different times, so the occurrence of this phenomenon has a large degree of contingency.

However, shortening the hair may make the hair look denser in a short period of time. This is because human hair naturally grows thinner at the end, just like the shape of a pencil or a javelin head. When the razor shaves off the tip of the hair, the remaining roots or bun will appear thicker and darker than before, and the short hairs that stand in the hair follicle will appear rougher. However, cutting off part of the hair does not affect the hair’s re-growth process, and the tapered hair can be regenerated. (However, in a few cases, excessive use of wax to remove hair will damage the hair follicle, and the accumulation of this damage will eventually reduce the amount of hair.)

In order to clarify the question of whether the hair regenerated after shaving will become dense, a medical research literature summarizes several studies comparing the natural growth of hair and post-shave regeneration in the past 100 years. In 1928, four adult male volunteers participated in an experiment on hair regrowth research. To control the variables in the experiment, they shaved a portion of the beard on the face in the same direction with the same brand of shaving soap, the same new razor and the same temperature of water. The researchers collected these shaved shorts and compared the 100 shaved each time they shaved, and reached their main conclusion: there is no evidence that shaving will speed up the growth of the beard.

In another study published in 1970, scientists involved five healthy white volunteers in experiments that repeatedly shaved hair to explore its effects on hair regeneration. During the months of the experiment, five volunteers fixed the leg hairs of the same leg every week, while the other leg did not do any treatment as a control (during the experiment, they probably only had to wear long pants to go out. Because the legs of the two legs are asymmetrical). The study found no significant differences in hair thickness, roughness or growth rate between the experimental and control groups. The results of this study are consistent with the observed phenomena in the clinic by dermatologists, says Melanie Grossman, a dermatologist in New York City. “Women have been shaving their legs. If the theory of regenerative hair is darker and thicker, will they not become orangutans?” McMichael agrees: “If you cut your hair, you can make your hair thicker. So, don’t we have to worry about hair loss?”

This theory applies equally when using beeswax for hair removal: the hair does not grow stronger when it is slammed from the hair roots. In addition, genetic factors, hormonal factors and environmental factors have an impact on hair growth. “If you scratch the skin of an area (usually when shaving or waxing hair removal, no one will do this), it will make the skin rough like the old ones, and the hair will become thicker. This is because the skin changes. At the same time, the nerves and hair will become denser. However, this situation is not typical,” McMichael said.

There is another explanation as to why newborn hair will appear darker. There is also an explanation here: newborn hair has just worn out of the skin and has not been exposed to the stimuli of chemicals, chemicals and sunlight, so it has not started to yellow or fade – but this period Very short, they will soon become the same as other hairs. Therefore, although the body hair will regenerate like a hair after trimming, it will not be more shaved, and the debate on this issue can be settled.

Original Article From: lifestancewax.com

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