Hair Myths and Facts: A Cosmetologist’s Guide to Understanding Hair Growth


In the ever-evolving world of beauty and hair care, cosmetologists are confronted with a myriad of myths surrounding hair growth. These myths not only mislead clients but can also complicate a cosmetologist’s work. In this comprehensive guide, we aim to debunk common myths about hair growth and provide scientifically-backed facts that every cosmetologist should know.

A Cosmetologist's Guide to Understanding Hair Growth

Myth 1: Shaving and Cutting Hair Makes It Grow Back Faster, Darker, and Coarser

The Myth

It’s a widely held belief that shaving or cutting your hair will result in it growing back more quickly, as well as appearing darker and coarser.

The Fact

Shaving or cutting hair does not affect its growth rate, color, or texture. The growth rate of hair is determined by genetics and the phase of the hair growth cycle it’s in. When hair is shaved, the tips are cut bluntly, which might give the feeling of coarseness as it grows out. Additionally, newly cut hair may appear darker due to the absence of sun exposure or chemical treatments but will return to its natural color as it grows.

Cosmetological Implications

  1. Client Consultations: Educate your clients about the facts surrounding hair growth rate and how it isn’t affected by shaving or trimming. This information is particularly important for those considering drastic changes to their hairstyle.
  2. Hair Treatments: If the client is seeking solutions for faster hair growth, focus on scientifically-backed treatments and supplements rather than suggesting frequent haircuts.

Myth 2: Scalp Massage Increases Hair Growth

The Myth

Many believe that massaging the scalp can lead to increased hair growth due to improved blood circulation.

The Fact

While it’s true that scalp massages can improve blood microcirculation and provide nutrients to hair follicles, there is no scientific evidence to suggest that this increases hair growth. The FDA has only approved Minoxidil and Finasteride as treatments for hair loss and potential hair regrowth.

Cosmetological Implications

  1. Client Expectations: Manage expectations by clarifying that while scalp massages may offer relaxation and minor benefits for the scalp, they won’t significantly affect hair growth.
  2. Treatment Options: For clients concerned about hair loss, consider recommending FDA-approved treatments.

Myth 3: Gray Hair is Coarser and More Resistant Than Pigmented Hair

The Myth

The common belief is that gray hair is fundamentally different from pigmented hair, particularly in its texture and resistance to treatments.

The Fact

Gray hair lacks pigment but is otherwise similar to pigmented hair in texture and other properties. It’s the same hair; it simply lacks color.

Cosmetological Implications

  1. Treatment Adjustments: Gray hair may react similarly to pigmented hair when it comes to treatments and styling. However, the lack of pigment may result in different coloration effects when dyeing.
  2. Product Recommendations: Since gray hair is not coarser, it doesn’t require specialized products for texture. Focus on products that enhance shine and manageability.


Dispelling myths surrounding hair growth is crucial in the cosmetology industry. Providing scientifically-backed facts can guide clients in making better choices for hair care and also reinforce a cosmetologist’s expertise. Understanding the truth behind these myths will not only elevate the quality of consultations but will also enhance the effectiveness of recommended treatments and products.

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