| http://www.w3.org/ns/prov#value | - Conventional additives, for example metal soaps, animal or plant extracts, vitamins, hormones, amino acids or other pharmacologically active substances, surfactants, coloring matters, dyes, pigments, perfumes, ultraviolet absorbers, humectants, thickening agents, antioxidants, metal sequestering agents, pH adjusting agents, etc., may be incorporated, as necessary, into the compositions of the inve
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