Create Your Brand Today!

Our passion is to collaborate with entrepreneurial firms and help our clients build premium lasting brands. Whatever you imagine, we will make it happen. Maybe it’s an extreme sports formula or a balanced wellness formula, a functional ingredient, weight management, or any dietary supplement solution, even for pets. We offer in-house formulas or we work with you from scratch to create your dream. With the highest quality certifications, talented product development team, and fast turn-around times, we will be an integral part of the success of your brand for years to come.

Get a Free Quote today of your favorite product!

You Seek

A seamless partnership to get top selling products that are manufactured in the US? Then, we are the perfect partner for you!

We Offer

The most comprehensive in-house product development and flavoring services to help design the best tasting and most innovative products on the market. Whether it's powders, capsules, or tablets

Let's Grow

Our passion is to collaborate with YOU and help you build premier and long lasting brands. At Lief, you are not just our customer, but our partner! Let's grow together!

Why work with Lief?

Lief is a Full-Service cGMP current Good Manufacturing Procedures Contract Manufacturer of dietary supplements, such as powders, tablets, and capsules. Lief offers a complete turn-key solution for all of your contract manufacturing needs to better streamline your operation, with the highest quality certifications, a knowledgeable product development team, and fast turn-around times. Lief has formulated products for a multitude of dietary supplement categories, such as Sports Nutrition, Fitness, Wellness, and Pet Products.

What Lief's clients are saying

Jim Spach

"Great company, it’s rare today to see a company built from the ground up in the product manufacturing space without it changing hands several times. This is one, built by solid people, who truly value their people. I’ve had the privilege to personally see the excellence and attention to detail they deliver in products and personnel development. I look forward to seeing this company continue to stay cutting edge."

- Jim Spach

Mego Salbashian

"Lief is by far the best contract manufacturer I’ve worked with. They go above and beyond to develop high quality products ship it on time. There ability to turn around quotations is unbeatable and they will take the time to understand your needs and provide flexible solutions. I’ll be using Lief for all my products now. I give them 5 gold stars for customer service, quality, turnaround time and care."

- Mego Salbashian

Mathew Taylor

"Can’t say enough great things about Lief. They are an amazing group of people who are innovative, experienced, and leaders in their industry – they always have a can do attitude, and regularly go the extra mile with a smile."

- Mathew Taylor

Lief is Prime Ready

Lief has worked with Amazon sellers on a myriad of products, we are experienced in Amazon’s strict requirements such as documentation, shipping, & formulations.

Let Lief help you take your business to the next level with our "Prime Ready" shipping services. Lief can ship your products directly to FBA warehouses across the U.S. & to Amazon’s specific standards. We have sent over 1,000,000 units to Amazon by tailoring our manufacturing and shipping practices to support Amazon’s requirements. Amazon is known to heavily penalize brands who do not adhere to their requirements, such as proper documentation, COA's and Material Safety Data Sheets. When you partner with Lief, your products will be Prime Ready & Amazon Approved, so you can continue to grow your brand!

28903 Avenue Paine
Valencia, CA 91355
United States

+1.661.775.2500
LIEFLABS.COM