Feed Smarter. Grow Better. Fortify with Nature’s Formula IGF-1

Feed Additive for All Biological Groups of Ruminants

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No Added Copper, Safe for All Ruminants

Nature’s Formula IGF-1 feed additive contains no added copper, allowing feed manufacturers and nutritionists to set appropriate copper levels for copper-sensitive species like sheep, llamas, or camels. Many additives pose risks due to copper content. Nature’s Formula provides a safe alternative — scientifically calibrated for all biological ruminant types.

Formulated with Superior Green Vegetative Sources

Nature’s Formula IGF-1 was granted permission by the Texas State Chemist Office, under Chapter 61.29 of the Texas Administrative Code, for its formulation based on superior vegetative sources. Premix formula labeling complies with the Texas Commercial Feed Acts 141.051 or 141.052.

Seal of the Texas A&M University System's State Chemist Office featuring a red star and laurel branches
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Trusted by Industry Experts

Introducing Grass Factor IGF-1 – Powered by Ranchers Performance Mineral’s legacy and Nature’s Formula science.

Veterinary professionals and animal nutritionists support Nature’s Formula IGF-1. It’s backed by clinical data from Texas A&M University, Kansas State University, and the University of Nebraska, among others. Ingredients are scientifically calibrated to support IGF-1 activity and daily nutrient intake across a wide range of species.

Seal of the Texas A&M University System State Chemist Office with maroon star and laurel wreath design.
Close-up of a llama grazing in a grassy field with more llamas in the background.

How to Use Nature’s Formula IGF-1

Add 5–12 pounds per ton of feed for beef cattle.

Illustration of a cow in orange with white spots

Add 2–10 pounds per ton for sheep and goats.

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Add 6–10 pounds per ton for deer, antelope, and wildlife.

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Add 5–8 pounds per ton for camelids (llamas, alpacas, etc.)

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Designed to Fortify from Conception to Consumption

Nature’s Formula IGF-1 is manufactured and distributed by Nutra Blend LLC, and is readily available to any independent feed manufacturer in America. It is supported by the scientific focus on green vegetative components that stimulate growth factors in ruminants, optimizing fortification to the DNA blueprint of each animal.