Humic & fulvic complex
HumicSure™
A humic and fulvic acid ingredient for technical evaluation and formulation development.
Explore HumicSure ↗Specialty ingredients for brands & manufacturers
Good products
start with
good ingredients.
Find the ingredients, documentation, and experienced people to move your next formulation forward.
Ingredient experience since 1970Branded & commodity portfolioCalifornia & the Netherlands
Our ingredients
Meet the GCI portfolio.
Distinctive branded ingredients and the raw materials that bring a formulation together.
Fulvic ingredients
FulvicSure™
A fulvic ingredient platform for source, composition, and application-fit conversations.
Explore FulvicSure ↗Digestive wheat germ
VilliSure™
A digestive wheat germ platform. Discuss ingredient identity, documentation, and your intended format.
Explore VilliSure ↗Looking for something else? Our portfolio also includes botanicals, enzymes, vitamins, minerals, amino acids, and other specialty materials.
Browse all ingredients ↗What we supply
Two paths through the catalog.
The branded line.
Trademarked ingredients with defined provenance, characterized actives, and a story behind each one. Built to appear on a finished-product label with the brand owner’s confidence.
Browse branded ingredients ↗The rest of the formulation.
Amino acids, vitamins, minerals, botanicals, and enzymes — the ingredients that round out a product. The same sourcing network and documentation discipline.
Explore commodity & specialty ↗Quality & science
Know more about
what goes in.
A name on a specification is only the beginning. Work with our team to evaluate the material, review its documentation, and understand its fit for your product.
Explore the GCI Sure™ program ↗- 01
Start with the source.
Discuss ingredient identity, origin, and the supplier documentation behind the material.
- 02
Look closely at the details.
Request the current specification and lot-specific Certificate of Analysis for your quality review.
- 03
Evaluate it in your formulation.
Review a sample, define your target requirements, and talk through the next step with an experienced team.
Built around your application
Different products.
The same attention to detail.
Your formulation, format, and market determine what you need. Let’s start there.
Dietary supplements
Ingredients for brands and contract manufacturers developing capsules, tablets, powders, and other supplement formats.
Explore your industry ↗Sports nutrition
Talk through ingredient identity, formulation format, and supply requirements for your active-nutrition product.
Explore your industry ↗Functional food & beverage
Evaluate sensory characteristics, solubility, and stability against the demands of your finished application.
Explore your industry ↗Cosmetic & personal care
Explore specialty materials with the documentation and grade review your personal-care formulation requires.
Explore your industry ↗Pet nutrition
Discuss your species, intended application, and market so our team can review appropriate ingredient options.
Explore your industry ↗A long view of the industry
1970
The year GCI Nutrients began.
Experience you can
have a conversation with.
GCI Nutrients was founded in 1970. Our family’s work in natural products goes back further — to a San Francisco garage in 1931, where Lloyd Landstrom and George Merriam started the business that would become Landstrom.
Three generations later, we’re still here, still doing the work. Branded and commodity nutraceutical raw ingredients for the formulators, R&D teams, and brand owners building what comes next.
Read our full history ↗Burlingame, CaliforniaUnited StatesRotterdamThe Netherlands
Resources
Information for your
next formulation.
Explore our research archive or request current ingredient specifications and supporting documentation.
Dr. Koz’s Corner
Notes from
our research desk.
Working papers and commentary on the science behind the ingredients we source. By Dr. Richard Kozlenko — DPM, MPH, PhD.
From the archive
Oral Microbiome – A Communication Battlefield
Read article ↗From the archive
Sugar Alcohols Linked to Heart Disease – Part 2
Read article ↗From the archive
Small Intestine Microbiome Considerations and Sporebiotics
Read article ↗From the archive
H.pylori the Underestimated Infection
Read article ↗What are you
working on?
A new formulation. An ingredient comparison. A sourcing question. Let’s talk through it.