A clarifying shampoo is formulated to remove, better than a regular shampoo, the residues that are left on the hair by continuous application of leave-on products or other rinse-off products (e.g., if you want to try a shampoo of a new brand, you can perceive better the results that this new product will give to […]
Author Archives: Hair Care Science
10
Oct
Oct
The number of hairs per head depends on the hair density (hairs/scalp area). The hair density varies by ethnicity, age, scalp region and scalp conditions such as male and female pattern alopecia. Considering most of the scientific data available, there’s a consensus that, in average, a head has around 100,000 hairs. Some scientific studies suggest […]
05
Oct
Oct
The common way that we measure the thickness of hair is based on measurements of the individual hair fibers diameter. The picture below illustrates what we measure on hair using specific equipment (imagine a line passing through the center of a hair fiber). To have a good statistic on the changes of hair diameter (or […]
25
Sep
Sep
In general, you get more split ends the longer your hair gets, but it’s possible to keep a beautiful, long hair with very few or no split ends. Split ends are the result of the deterioration of the hair cuticles, so the internal part of the hair (cortex) starts to be visible. It happens because, […]
20
Sep
Sep
As a person ages, hormonal changes contribute to changes in the hair, the most noticeable changes are hair thinning, hair graying, and dryness of the hair and scalp. Hair thinning in general is not noticeable in women until the mid to late twenties. With increasing age, the hair becomes thinner, what can lead to a […]
10
Sep
Sep
That’s a great question and the answer depends on how you’re looking at that question. I have a PhD in the Chemistry of Hair and have been working with development of hair products for more than 15 years. Based on my experience and scientific studies about the effect of coconut oil in hair, the coconut […]
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