Created in 2014 as an independent spinout from A&Z Pharmaceutical, Allegiant Health manufactures over-the-counter pharmaceuticals and nutritional supplements at its FDA-registered, cGMP facility in Deer Park, New York. The company also serves as a private-label and contract manufacturing partner, with more than 200 products and international distribution supporting its HealthA2Z® brand and customer programs. Allegiant’s quality systems earned a perfect UL management-system certification score for six consecutive years through 2026, and its 2025 FDA CDER inspection found zero observations.
FDA Establishment Registration
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21 CFR Part 211 cGMP for Finished Pharmaceuticals
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UL Pharmaceutical GMP Manufacturing Management System Certification
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ANSI 455-4 GMP for OTC Drugs
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FDA CDER Facility Number 3001195380
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FDA FSAN Facility Number 10931458166
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New York State Board of Pharmacy Facility Number 030595
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FDA CDER Inspection 2025 — Zero Observations
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FDA CFSAN Inspection 2024 — Perfect Score
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Alaska Spring PharmaceuticalsBased in Westbury, New York, Alaska Spring Pharmaceuticals is a U.S. supplement manufacturer serving brands that need a product developed and brought to market under their own label. Its 60,000-square-foot facility operates as an FDA-registered, GMP-certified production site, with quality documentation and third-party testing available to customers.WESTBURY, NY
Allegiance PharmaceuticalAllegiance Pharmaceutical makes pharmaceutical-grade nutritional health supplements in the USA, including formulations developed with health care providers for needs such as nerve health and iron deficiency. Its products are made in FDA-regulated facilities that follow strict GMP guidelines, with testing and clear nutritional labeling intended to support potency, stability, and purity.RONKONKOMA, NY
Pharbest Pharmaceuticals, IncEstablished in 2004, Pharbest Pharmaceuticals is a Long Island, New York manufacturer whose work centers on affordable healthcare products for other brands and consumers. Its Farmingdale operation combines an FDA-compliant quality system with in-house production, supporting OTC medicines and dietary supplements from development through finished packaging.FARMINGDALE, NY
UnipharmEstablished in 1992, Unipharm is an international group that develops and supplies over-the-counter medicines and nutritional supplements, with products made in America and the European Union. Unipharm Inc. is FDA registered, and the group’s tablets and capsules undergo testing and manufacturing controls aligned with GMP requirements. Its brands are marketed in countries around the world through offices in the USA, Ireland, and elsewhere.CHISINAU, MD