The hair and sebum (scalp oil) are naturally between 4.5 and 5.5 pH levels to keep the hair and scalp healthy. When your scalp and
hair become too alkali (weak), the natural sebum that fights dirt on your scalp is stripped away. This enables your hair to become
dry, leaving it coarse and difficult to manage. You'll need a hydrating conditioner to return the balance of your natural oils and
avoid dry hair in the future.