Natural Alternatives International, Inc. engages in formulating, manufacturing, and marketing nutritional supplements in the United States and internationally. The company operates in two segments, Private-Label Contract Manufacturing, and Patent and Trademark Licensing. It offers private-label contract manufacturing services to companies that market and distribute vitamins, minerals, herbs, and other nutritional supplements, as well as other health care products. The company also provides strategic partnering services, such as customized product formulation, clinical studies, manufacturing, marketing support, international regulatory and label law compliance, international product registration, packaging in multiple formats and labeling design, scientific research, proprietary ingredients, customer-specific nutritional product formulation, product testing and evaluation, packaging and delivery system design, and regulatory review. In addition, it sells beta-alanine ingredient under the CarnoSyn and SR CarnoSyn names. The company manufactures products in various forms, including capsules, tablets, chewable wafers, and powders. Its private-label contract manufacturing customers include companies that market nutritional supplements through direct sales marketing channels, direct to consumer e-commerce channels, and retail stores. Natural Alternatives International, Inc. was founded in 1980 and is headquartered in Carlsbad, California.