Natural Alternatives International
Private label contract manufacturer that also develops proprietary beta-alanine ingredients.
- MOQ
- Not publicly disclosed
- LEAD TIME
- Not publicly disclosed
Overview
Natural Alternatives International (NAI) is a publicly traded (NASDAQ: NAII) contract manufacturer of nutritional supplements headquartered in Carlsbad, California. Founded over 45 years ago, NAI provides formulation, manufacturing, and marketing support services for dietary supplement brands. The company specializes in private-label contract manufacturing. Its NSF GMP registration is independently confirmed in the NSF public directory; it additionally reports NSF Certified for Sport and TGA (Therapeutic Goods Administration, Australia) registration, both self-reported. NAI reported $130 million in annual revenue for fiscal year 2025, with private-label contract manufacturing sales growing 17.7% year-over-year. The company also develops proprietary ingredients, including its beta-alanine products under the CarnoSyn and TriBsyn brands. NAI employs over 500 people and maintains manufacturing facilities in Southern California.
Certifications
1 of 3 certifications independently confirmed. What this means
Capabilities
- PRODUCT TYPES
- Private Label Supplements · Custom Formulated Supplements · Capsule Supplements · Tablet Supplements · Powder Supplements · Proprietary Ingredients (CarnoSyn, TriBsyn)
- CAPABILITIES
- Custom formulas · Private label or white label · R&D or product development · High-volume production · Regulatory or compliance help
- DOSAGE FORMS
- capsules · powders · tablets
Sources
- Natural Alternatives International - Official Website(2026-03-27)
- NASDAQ - NAII Stock Profile(2026-03-27)
- Yahoo Finance - NAII Financial Data(2026-03-27)
- GlobeNewsWire - NAI Q1 FY2026 Results(2026-03-27)
What we couldn't verify
We did not visit this company on site. See the limits that apply to every listing.
- NSF GMP is independently confirmed via public registry (NSF GMP directory); remaining certifications are self-reported from the company website and SEC filings (audit 2026-05-21)
- Enterprise-tier manufacturer; minimum order quantities likely higher than smaller CMs
- Southern California location overlaps with existing CA-based CMs in directory
Dietary supplement manufacturers must comply with 21 CFR Part 111 (cGMP). What Part 111 requires
The connection map between Natural Alternatives International and other vendors, capabilities, and certifications is in the manufacturer atlas.
Enforcement screening: included in Inventory Ready's most recent completed pass against FDA's published recall datasets (2026-07-09). Method and limits →
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