Many “experts,” yet few results Have you noticed how there seem to be hundreds of hair bloggers and YouTube hair personalities, each with dozens of products and routines that they swear by? Have you also noticed that you have spent hours reading all of their articles and trying various products, yet not getting good results? …
Hair Cuticles Don’t Work Like We Think They Do I learned that what we think about the cuticle and water is wrong. The cuticle of virgin hair is not an impenetrable barrier that locks water out; water actually diffuses past the cuticle within minutes. Sounds unbelievable? Well, it’s true, and it shows just how wrong…
Turns out, we can’t tell dry hair from moisturized hair Studies show that people identify hair with low water content as looking and feeling more moisturized. Additionally, a study by Mendes et. al. looked at water content levels after various hair product applications and found this out [1]: Sensory evaluations are inadequate for the assessment of the hydration…
The hair care v/blogosphere (as well as product marketing) teaches us that moisturizing your hair is crucial and that we need to force water in and make it stay in our hair by whichever method we can, no matter what our hair type is. However, hair science appears to be cautioning us that moisturizing your…
The majority of hair bloggers (and even some hair companies) have written posts describing hair porosity basics. They make it sound like an indisputable hair science fact, when in reality, hair porosity appears to be a consumer-generated theory supported by a questionably low amount of scientific evidence. This post is the introduction and the start…