In this study two alkylphenolethoxylates with different ethoxylation degree c. a. EO 9 (Lanasan LT as NPE-1) and EO 40 (Disponil AA P43 as NPE-2) were selected with the purpose to evaluate the influence of hydrophobicity of nonionic surfactants on wool dyeing efficiency. https://www.heilimagi.com/product-category/hair-loss-treatment/