Merck CHC Holding, a wholly owned Consumer Health Care business of Merck KgaA, Darmstadt, Germany, has ac­quired Peter Black Direct Marketing Ltd., a U.K.-based direct marketer of vitamins, minerals and supplements, in order to expand and reinforce Merck’s market share in Great Britain. Peter Black Direct Marketing has two businesses including Nature’s Best, which sells directly to consumers, and Lamberts, which sells to practitioners and nutritionists. Peter Black Direct Marketing will be renamed Lamberts Healthcare Ltd.