Shampoo Ratings: Nurture My Body Rates Best, CVS Ranks Last

Nurture My Body outscored more than 1,700 other shampoos rated by GoodGuide, while CVS Color Protect Moisturizing Shampoo ranked last.

GoodGuide helps consumers find healthy, green, ethical products based on scientific ratings. Its experts have rated more than 100,000 consumer goods -- including food, personal care and household products -- using three factors of increasing importance to consumers: concern for the environment, personal health and social responsibility.Since Consumer Ally teamed up with GoodGuide, we've published ratings of cold cereal, cat food, household cleaners and more.

The Health score measures a product's potential health effects on consumers. The Environment score measures a product's environmental impact as well as the company's overall policies and practices. The Society score evaluates a company's social impact, which can include treatment of workers, workplace diversity, community involvement and corporate ethics.

GoodGuide's ratings include a brief explanation for each category, and allow users to drill down into each score for more detail.

For instance, Nurture My Body Shampoo's 8.2 rating is based on:

• A Health score of 10: "This product has no ingredients that raise a health concern."
• An Environment score of 8.1: "Compared to other companies, this company scores well on reducing climate change emissions."
• A Society score of 6.6: "Compared to other companies, this company receives an above average rating on working conditions and benefits for its employees."

Conversely, CVS Color Protect Moisturizing Shampoo's 3.0 rating was based on:

• A Health score of 1.0: "This product contains one or more ingredients that raise a high level of health concern."
• An Environment score of 4.1: "Compared to other companies, this company received one of the lowest scores on water management."
• A Society score of 4.0: "The company that makes this product has a below average score in ethical policies and performance."

GoodGuide rated 1,759 shampoos from more than 100 popular brands, which included shopping tips for consumers as well. You can view all the top-rated shampoo (in descending order) here and all the poorly rated shampoo (in ascending order) here.

Below are its top-five best and worst products. In order to avoid repetition of a particular brand (Nurture My Body monopolized the top six slots), we've skipped ahead to the next best or worst brand.

The Best Shampoos

• Nurture My Body Shampoo (8.2)
• Miessence Desert Flower Shampoo (Normal To Dry Hair) (8.0)
• Sea Chi Peppermint Shampoo (7.9)
• Gourmet Body Treats Vanilla Mint Shampoo (7.8)
• Dr. Hauschka Shampoo with Macadamia and Orange (7.8)

The Worst Shampoos

• Isoplus Neutralizing Shampoo (3.5)
• Alberto VO5 Naturals Shampoo, Vanilla Blossom (3.5)
• Nexxus Simply Silver (Color Toning Shampoo) (3.5)
• St. Ives Swiss Formula Papaya Plus, Shampoo Plus Conditioner For Normal Hair (3.1)
• CVS Color Protect Moisturizing Shampoo (3.0)