Mary Catherine Phillips

She tested consumer beauty products, promoted safety for cosmetics, and wrote Skin Deep.

The Truth About Beauty Aids – Safe and Harmful, about the cosmetics industry, using her initials, M. C.

[5] It was a best seller that year and provided support for the Federal Food, Drug, and Cosmetic Act passed in 1938.

[6] In 1935, workers at Consumers' Research complained about working conditions, formed a union chapter, and subsequently went on strike.

The Board of Directors, including Phillips, rejected negotiations and accused the workers of being Communists.