Quality
Control
Lief dedicates 25% of our staff to Quality Assurance & Quality Control. At Lief, your products are manufactured in accordance to the latest FDA cGMP guidelines and in compliance with 21CFR Part 111.
Lief partners with quality suppliers to receive only the best ingredients. We will only use suppliers that have been approved through our internal qualification process. In addition, Lief performs tests to certify and validate the nutrition facts and vitamin & mineral label claims are met and other hazardous elements, such as microorganisms, are not present. These tests are conducted on each raw material and all finished products. Testing is performed both internally and by reputable, qualified third party laboratories that have experience testing dietary supplements and understand our unique product requirements.
All of our products are made in the USA.
Testing
Purity
Finished Product Testing
Stability
Potency
Gluten Free Testing
Heavy Metals
Microbial Screening
Hardness
ATP and Allergen Screening
USP Tablet Disintegration
Active Component Potency Testing
Certifications & Verifications
Good Manufacturing Practices
NSF
NSF is a certifier for GMP. Through the NSF, we can verify that your product has the identity, strength, composition, quality and purity that appears on its label.
BSCG
USDA Organic
Organic Certifiers
Lab Tested
Non GMO
Lief is a non “GMO compliant facility.” At Lief we can help you register your products with “Project Verified” and other certifying bodies.
Kosher
Lief can manufacture Kosher compliant products. We believe passionately that Kosher laws form a crucial part of an all-encompassing belief of integrity and compliance. This belief guides us in all that we do and is the foundation upon which our organization is established. Our standards of being Kosher and customer service focused are continuously upgraded to remain “best-in-class”, and are a key component of Lief’s core values.
Halal
Lief can manufacture Halal compliant products.
GFCO
NASC
Lief is a proud member of the NASC Preferred Suppliers. We are pre-qualified to supply services to NASC Primary Suppliers. Pre-qualification allows Primary Suppliers to accept and use the products and services without additional vendor qualifications and procedures required under NASC cGMPs. The program helps ensure total quality confidence throughout the entire supply chain, from start to finish.
