Answers at your fingertips! This up-to-date, thorough resource and reference for assessing product ingredients, quality, and their effect on the skin, hair, and nails takes the guesswork out of cosmetic ingredients and their functions. more
Answers at your fingertips! This up-to-date, thorough resource and reference for assessing product ingredients, quality, and their effect on the skin, hair, and nails takes the guesswork out of cosmetic ingredients and their functions. less