A conditioner is a hair care product that is designed to improve the texture, appearance, and manageability of hair. It works by replenishing moisture, nutrients, and oils that may be lost during shampooing or due to environmental factors like sun exposure or heat styling A conditioner is a hair care product that is designed to improve the texture, appearance, and manageability of hair. It works by replenishing moisture, nutrients, and oils that may be lost during shampooing or due to environmental factors like sun exposure or heat styling A conditioner is a hair care product that is designed to improve the texture, appearance, and manageability of hair. It works by replenishing moisture, nutrients, and oils that may be lost during shampooing or due to environmental factors like sun exposure or heat styling