90 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS MASCARAS The desirable bluish greens of these products are often obtained through the use of small significant quantities of certain chlorophyll derivatives. To the best of our knowledge, no one is presently using chlorophyll in lip- sticks, rouges, facial packs, facial creams, cuticle removers, or depilatories or cold waves, although their use in such products is indicated. CONCLUSION The use of chlorophyll in various cosmetics has been described. The ef- tectiveness of chlorophyll as a contact deodorant is clearly proved by recent scientific evidence and the effectiveness of cosmetics containing chlorophyll is due to the use of the sufficient amount or type of chlorophyll. CHEMICALS FROM FATS AND OILS: A SOURCE OF COSMETIC RAW MATERIALS* By Pau• DuBP, ow Product Research Section, •Irmour and Company, Chicago 9, IlL T•E S^TURALL¾ occurring fats and oils offer one of the largest potential sources of raw materials for the preparation of chemical syn- thetics. The total annual world production of these materials is about 25 million tons, although only some 15 per cent of this is generally avail- able for the compounds we are interested in, the so-called fatty acid de- rivatives. Chemically, of course, the fats and oils are triglycerides, which, upon hydrolysis and separation, give rise to our starting fatty acids. These may be separated, in excellent yields, into primarily the lauric, hexadecyl, octadecyl, and octadecenyl acids. From these the range of possible prod- ucts and applications is almost limitless. The fatty acid, chemically, is a combination of a long, non-polar, hydro- phobic hydrocarbon chain and a strongly polar, hydrophilic carboxyl group, a highly favorable combination for surface activity. Both elements of the molecule offer approaches to further derivative formation and modi- fication. Let us consider, first, the preparation of the basically non-nitrogenous derivatives of these compounds, with particular reference to tried and suggested applications in the cosmetic field. Neutralization, with organic amines or inorganic alkalies, offers the * Presented at the November 10, 1953, Meeting of the Chicago Section, Chicago, Ill.

90 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS MASCARAS The desirable bluish greens of these products are often obtained through the use of small significant quantities of certain chlorophyll derivatives. To the best of our knowledge, no one is presently using chlorophyll in lip- sticks, rouges, facial packs, facial creams, cuticle removers, or depilatories or cold waves, although their use in such products is indicated. CONCLUSION The use of chlorophyll in various cosmetics has been described. The ef- tectiveness of chlorophyll as a contact deodorant is clearly proved by recent scientific evidence and the effectiveness of cosmetics containing chlorophyll is due to the use of the sufficient amount or type of chlorophyll. CHEMICALS FROM FATS AND OILS: A SOURCE OF COSMETIC RAW MATERIALS* By Pau• DuBP, ow Product Research Section, •Irmour and Company, Chicago 9, IlL T•E S^TURALL¾ occurring fats and oils offer one of the largest potential sources of raw materials for the preparation of chemical syn- thetics. The total annual world production of these materials is about 25 million tons, although only some 15 per cent of this is generally avail- able for the compounds we are interested in, the so-called fatty acid de- rivatives. Chemically, of course, the fats and oils are triglycerides, which, upon hydrolysis and separation, give rise to our starting fatty acids. These may be separated, in excellent yields, into primarily the lauric, hexadecyl, octadecyl, and octadecenyl acids. From these the range of possible prod- ucts and applications is almost limitless. The fatty acid, chemically, is a combination of a long, non-polar, hydro- phobic hydrocarbon chain and a strongly polar, hydrophilic carboxyl group, a highly favorable combination for surface activity. Both elements of the molecule offer approaches to further derivative formation and modi- fication. Let us consider, first, the preparation of the basically non-nitrogenous derivatives of these compounds, with particular reference to tried and suggested applications in the cosmetic field. Neutralization, with organic amines or inorganic alkalies, offers the * Presented at the November 10, 1953, Meeting of the Chicago Section, Chicago, Ill.