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Mushroom Safety

Do you test your coffee for mold/mycotoxins?

We do! Our main focus is to offer you the safest, cleanest, and highest-quality products possible. To ensure this, we test all of our products (coffee included!) in 3rd party laboratories for mold, mycotoxins, heavy metals, microbial quality, aflatox

Four Sigmatic Product Quality Standards

Quality is a word that resonates with most people on some level but what does it really mean? Without being defined by some standards, the word can really be used very loosely. In a dictionary, 'Quality' is defined as, "The degree of excellence in so

What is Prop 65?

Worrying about Prop 65 is the last thing we want you to be doing! The statement you are asking about is required by a labeling law in California called Proposition 65. (Everyone calls it Prop 65). To sell products in C

Are your products vegan and gluten free?

Yes, all of our products are gluten-free and vegan! None of our ingredients include gluten or are derived from an animal. We do not use any Cordyceps that grow from caterpillars. Please be aware though that our warehouses/facilities are not gluten-f

Common allergen information

All of our products are considered vegan and ingredients used to manufacture the products do not contain gluten, wheat, and soy. Our products are peanut-free, with the exception of our Peanut Butter Protein. Some of our manufacturing takes place wher

Can I consume these products while pregnant or breastfeeding?

Unfortunately, we cannot give any specific recommendations about which products to take as we are not qualified medical professionals. We recommend consulting your healthcare professional before consuming any Four Sigmatic products if you are pregnan

Can children have these products?

We recommend that you speak to your child’s pediatrician or health care provider before giving them Four Sigmatic products.    Not finding what you’re looking for? Please feel free to reach out to our Customer Support Team at [email protected]

Could I have an allergic reaction?

Individual allergic reactions are always possible when consuming something new. If you have any concerns, please consult your healthcare practitioner to develop a plan on how you can integrate functional mushrooms into your diet.   Not finding what y

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