Hair loss is surrounded by many myths that fuel anxiety and often lead to bad habits. Here are 10 widespread misconceptions, debunked one by one, to finally understand what's true… and what isn't.
1. Washing your hair too often makes it fall out
Hair that falls out in the shower was already at the end of its growth cycle, in the telogen phase. Shampoo only loosens the hair and doesn't cause it to fall out, especially if it's gentle and suitable for the scalp.
2. Hair grows back stronger when it is shaved.
Shaving does not change the thickness or density of the hair. The illusion of stronger hair simply comes from the fact that damaged ends have been removed, leaving room for cleaner regrowth.
3. Spacing out your shampoos limits hair loss
A scalp needs to be cleansed regularly. Spacing out washing excessively does not prevent hair loss and can even promote imbalances such as excess sebum, dandruff, or inflammation, unless a very gentle routine is used.
4. Hair loss is solely genetic
Genetics plays a role, but it is far from being the only cause. Hormones, diet, stress, deficiencies, and even the environment can cause hair loss, even without any family history.
5. Wearing a hat or helmet makes you lose your hair
Hair follicles are located deep within the skin, well protected. Wearing a hat or helmet does not cause hair loss, except in cases of excessive friction or repeated irritation.
6. Only men lose their hair
One in two women will experience hair loss during her lifetime. In women, it is often more diffuse and less visible, but just as real . This is especially true since the scalp ages six times faster than facial skin, which accentuates this process.
7. Hair loss is irreversible
Many types of hair loss, such as telogen effluvium, are temporary and reversible. Even androgenic alopecia can be slowed and improved with targeted care and interventions.
8. Cutting your hair often stimulates regrowth
Hair growth rate depends exclusively on the follicles, not on the length. Cutting hair improves the overall appearance of the hair, but does not accelerate regrowth.
9. The sun is good for hair
Moderate sun exposure promotes vitamin D synthesis, but excessive exposure weakens the hair fiber and oxidizes the scalp . The scalp ages much faster than facial skin, so it deserves protection.
10. Hair can grow more than 3 cm per month
The average growth is 1 to 1.5 cm per month. Even with an optimal routine, exceeding 2 cm is very rare, and promises of +3 cm per month are biologically unrealistic.
Hair loss is a complex subject, often hampered by persistent misconceptions. A better understanding of the actual biological mechanisms allows for the adoption of appropriate practices, avoidance of common mistakes, and more informed choices to preserve scalp health in the long term.