Unsure whether I should be cold showering or cold rinsing, I ventured for a second opinion. But the result I got was a little surprising. Hair transplant surgeon and researcher Dr Bessam Farjo tells me that cold water’s power to improve hair quality is a common myth. “There isn’t any solid scientific data or proof that washing hair with cold water increases the quality, or has any benefit.” This was not what I wanted to hear. “The optimum temperature for washing hair and scalp is with warm water or a comfortable temperature. Not too hot and not too cold.”

According to Dr Farjo: “The products used to wash hair are more relevant than water temperature. Look for the right pH in products to ensure a healthy scalp and hair.”

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