Alcohol-free: Does not contain alcohols that may cause dryness or irritation.
Cruelty-free: No animal testing has been conducted at any stage of the product development.
Paraben-free : Does not contain preservatives that are used to protect the product from microbes and spoilage. Usually preferred by people who want a "milder" formula or avoid certain preservatives.
Sulfate-free (SLS/SLES-free): Does not contain sulfates (sulfate salts/strong cleansing agents such as SLS or SLES), which create a lot of foam but may dry out or irritate hair and skin. Usually considered a milder formula.
