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The Myths and Realities of Grey Hair and Hair Plucking

3/10/2026, 1:08:32 AM

Understanding Hair Growth and Follicle Function

Desmond Tobin, a professor of dermatological science at University College Dublin, clarifies common misconceptions surrounding hair plucking and growth. Contrary to popular belief, plucking a single hair does not stimulate the growth of multiple hairs from the same follicle. Each follicle is designed to produce only one hair shaft. Repeatedly pulling hairs can lead to damage, potentially resulting in follicles that cease to produce hair altogether. This phenomenon was notably observed during the ultra-thin eyebrow trend of the 1990s and early 2000s, where excessive plucking led to permanent hair loss in some individuals.

The Nature of Grey Hair

Grey hair is often viewed negatively, but Tobin emphasizes that it can be just as healthy, if not healthier, than pigmented hair. He notes that grey hair sometimes exhibits a preferential growth rate, particularly in men with salt-and-pepper beards, who may find that their white hairs grow longer between shaves. The appearance of grey hair is largely influenced by genetics, with familial patterns providing insight into what individuals might expect as they age.

Factors Influencing Hair Aging

While genetics play a significant role in hair greying, Tobin points out that external factors such as chronic stress, poor sleep, and nutritional deficiencies can accelerate biological aging, including changes in hair color and texture. However, the presence of grey hair should not be viewed solely as a negative aspect of aging, as it can signify a natural and healthy transition.

Criticism of Common Beliefs

Despite the myths surrounding hair plucking and greying, Tobin's insights challenge societal perceptions. The belief that plucking can enhance hair growth is debunked, and the notion that grey hair is inherently undesirable is also questioned. This perspective invites a reevaluation of how individuals approach hair care and aging.

Official Statements & Responses

Tobin's research highlights the importance of understanding hair biology and the implications of hair care practices. He advocates for a more informed approach to hair management, encouraging individuals to embrace the natural aging process rather than resorting to potentially harmful practices.

Verbatim Quotes

  • “It would be a great solution for people who are thinning and unhappy about it.” — Desmond Tobin, Professor of Dermatological Science
  • “They weren’t getting two for every one,” — Desmond Tobin, Professor of Dermatological Science
  • “There seems to be a preferential growth-rate advantage to white and grey hair,” — Desmond Tobin, Professor of Dermatological Science

In summary, the understanding of hair growth and the implications of grey hair are nuanced and often misunderstood. By addressing these myths, individuals can make more informed choices regarding their hair care and embrace the natural aging process.