What is the pH range of hair and skin?

The pH range of hair and skin being between 4.5 and 5.5 is significant because this acidic environment helps to maintain the health of both. The slightly acidic pH levels contribute to the skin's ability to ward off bacterial growth and support the skin barrier, which protects against irritants and moisture loss.

For hair, maintaining this pH is crucial for preserving the cuticle's integrity, preventing damage, and ensuring that the hair remains smooth and manageable. Products that align with this pH range are generally less likely to disrupt the natural balance of the hair and skin, promoting overall health and appearance.

Understanding this range is vital for barbers and cosmetologists to ensure they select appropriate hair and skin care products that won't alter the skin's or hair's natural state, thus avoiding potential damage or irritation.