Dr. John Watts — trichologist, dermatologist and hair transplant surgeon in Hyderabad with over 1,900 successful hair transplant procedures — regularly fields questions from viewers of his popular educational YouTube channel. In this article, he answers five of the most commonly asked questions on hair fibre, eggs, hot water, Minoxidil roughness and gym workouts.
Does hair fibre cause hair fall or scalp damage?
Hair fibre is a cosmetic concealer, not a treatment, and when used correctly it poses minimal risk. However, Dr. John Watts urges users to follow a key safety precaution.
“If one has used hair fibre all day, it is always better to wash it in the evening as unwashed hair fibre can block the pores of the scalp and affect the blood supply. They also accumulate the oil,” says Dr. John Watts.
The takeaway: use hair fibre during the day but never sleep with it on your scalp.
Eggs for hair — good or bad?
This is a frequent point of confusion. Dr. Watts clarifies the nuance.
“What I might have said is that one must avoid eating raw eggs,” he explains. Eggs are an excellent source of protein, and protein is essential for hair growth. The problem is specifically raw egg whites, which contain a protein called avidin that can interfere with biotin absorption.
“You can consume boiled eggs or egg curries, but try to avoid eating raw eggs,” he advises.
Does hot water from a geyser or heater harm hair differently?
A common misconception is that the source of hot water makes a difference. It does not.
“However, ensure that one should not use very hot water on the scalp. Use only lukewarm water for a head bath,” informs Dr. John Watts. The temperature of the water is what matters, not its source.
Why does Minoxidil make hair feel rough after a head bath?
Many Minoxidil users notice their hair feels stiff or rough during washing. Dr. Watts confirms this is nothing to be concerned about.
“This is perfectly normal,” he clarifies. The stiffness is primarily due to the alcohol base in the topical lotion and does not indicate any harm to the hair or scalp.
Can you do heavy gym workouts while using Minoxidil?
There is no medical reason to avoid the gym while on Minoxidil. Dr. Watts is unequivocal: there is absolutely no connection between hair loss and gym workouts.
“If one is noticing hair fall after joining a gym, one must consult a dermatologist. There could be other reasons but gym training has nothing to do with one’s hair fall,” he explains. And as for Minoxidil specifically, “there is no bar” on heavy physical exercise while using it.
The bottom line
Many common hair care concerns are rooted in half-truths or misunderstood advice. Wash out hair fibre at night, eat cooked eggs not raw, use only lukewarm water, and do not be alarmed by Minoxidil-related roughness or normal gym-associated hair shedding.
This article is for educational purposes only and is not a substitute for professional medical advice. Consult a qualified dermatologist for diagnosis and treatment.
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Frequently asked questions
Can using hair fibre every day cause hair loss?
Not if used correctly. Dr. John Watts advises always washing out hair fibre in the evening, as leaving it overnight can block scalp pores and affect blood supply.
Are eggs good or bad for hair?
Eggs are excellent for hair growth as a protein source. The only thing to avoid is raw egg whites, which contain avidin that can block biotin absorption. Boiled or cooked eggs are perfectly fine.
Does hot water from a geyser damage hair more than from a heater?
No. The source of hot water makes no difference. What matters is the temperature — always use lukewarm water, not very hot water, for a head bath.
