What is the pH range for a good mild alkaline shampoo?

A good mild alkaline shampoo typically falls within the pH range of 7.0 to 8.0. This range is considered close to neutral or slightly alkaline, which can help in effectively cleaning the hair without causing excessive damage or irritation. Alkaline shampoos are useful for balancing the pH of hair that has been chemically treated or damaged, as they can help to remove buildup from products while maintaining the integrity of the hair fiber.

The pH level is crucial in the formulation of shampoos, as it influences the product's effectiveness and its compatibility with the scalp and hair. A slightly alkaline pH helps to open the cuticle layer of the hair, allowing for better penetration of conditioning agents while still being gentle enough for regular use.

Higher pH levels, such as those found in options above 8.0, can be harsher on the hair and scalp, potentially leading to dryness and irritation. Therefore, staying within the appropriate mild alkaline range supports both the cleaning process and the health of hair and scalp.