'I'm a pharmacist - four factors that accelerate hair loss during the colder months are easy to avoid'

As the colder season sets in, various environmental factors contribute to increased hair shedding, the main culprits being vitamin D deficiency, reduced sunlight exposure, cold weather, and dry indoor heat.

Phil Day, Superintendent Pharmacist at Pharmacy2U, suggested that taking proactive steps to mitigate these factors can prevent unwanted hair loss.

Vitamin D

Vitamin D deficiency is a key factor in seasonal hair loss, according to Phil Day. During winter, reduced outdoor time leads to lower vitamin D levels, weakening hair follicles and increasing shedding.

"To mitigate this, consider incorporating vitamin D-rich foods into your diet, or speak to a healthcare professional about supplements that can help maintain optimal levels during the colder months," said Phil.

"The NHS recommends that adults take 10 micrograms (400 IU) of vitamin D daily, especially in the winter, to support overall health."

Lack of sunlight

Lack of sunlight also disrupts the body's circadian rhythm, affecting hair growth cycles, so Phil suggested spending more time outdoors during daylight hours or using light therapy to mimic natural sunlight.

Cold temperatures can reduce blood circulation to the scalp, slowing nutrient delivery to hair follicles.

Phil recommended wearing a hat for protection but cautions against tight headwear to prevent traction alopecia.

Indoor heating

Dry indoor heat from central heating systems can strip moisture from the scalp and hair, leading to irritation and shedding.

"To mitigate this, use a humidifier to add moisture back into the air, and consider hydrating hair care products that nourish both the scalp and hair," recommended Phil.

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Day emphasised that while these steps can help reduce seasonal hair loss, some shedding is natural.

Early intervention is key, he stressed, noting that hair loss treatments are most effective when started promptly, especially for conditions like male pattern baldness.

"When hair loss becomes excessive, it can significantly affect self-confidence and wellbeing," said Phil.

He advised those concerned about hair loss to consult healthcare professionals for personalised advice and treatment plans.