Although shampoos vary in acidity and alkalinity, most shampoos range from 5 to 7 on the pH scale. The best shampoos are those that are slightly acidic to neutral. The higher the pH number, the harsher the shampoo on a p... More »

Dove shampoo is a pH balanced, or pH neutral, shampoo. The shampoo ranges on the pH scale between a 6.5 and a 7.5. More »

Shampoo is slightly acidic to neutral depending on the brand, with levels that range from 4.8 to 7 on the pH scale. Hair conditioner tends to be even more acidic, with pH levels ranging from 2.8 to 7. More »

According to The Natural Haven, the pH of shampoo ranges from 3.5 to 9 based on different non-alkaline brands. The Natural Haven's classifications are based on the manufacturer's stated pH levels and their own tested pH ... More »

Cellular pH needs to be maintained close to seven because a slight shift in pH towards either acidity or alkalinity could result in serious harm to the organism, including death, coma, muscle spasms or convulsions. A sli... More »

Examples of different types of shampoos include clarifying shampoo, volumizing shampoo, and those made for oily, dry, curly or straight hair. All types of shampoo contain a conditioner and cleanser. The specific type of ... More »

The best shampoos to treat seborrhea include Nizoral A-D anti-dandruff shampoo with ketoconazole and Head and Shoulders with selenium sulfide or pyrethione zinc, according to About.com. Shampoos containing coal tar or sa... More »