Mannatech Inc. (MTEX ) said it has introduced a line of water-based skin care products that is completely free of preservatives. In addition to having been allergy- and ophthalmologist-tested, the preservative-free Optimal Skin Care System also contains no fragrances or colorants. The company said these products are already sold in Japan, Taiwan, the Republic of Korea, Australia and New Zealand. The Optimal system will go on sale in the United States and Canada duri
Mannatech Unveils Preservative-Free Skin Care Products
