Chelating Agents To Improve Color Stability of Resorcinol

US Patent No. 11,478,411 B2 (Lei Huang, Teanoosh Moaddel); Conopco, Inc. (Unilever), has patented a process for preparing a cosmetic composition that entails preparing, separately, a water phase and an oil phase; emulsifying the water phase and the oil phase to prepare a cosmetically acceptable base; preparing an adduct by combining a compound selected from resorcinol, phenylethyl resorcinol, 4-alkyl substituted resorcinol and mixtures thereof with a chelating agent in water; and combining the adduct obtained in step (c) with the cosmetically acceptable base of step (b). The process does not comprise a combination of 4-hexyl resorcinol with ethylenediamine di-succinic acid.