Four Sigmatic Reviews – Should You Buy? Quality Mushroom Supplements That Work?

Four Sigmatic is an organic coffee company offering mushroom coffee blends, plant-based protein powders, adaptogen supplements, and other unique products.

Found online and available in retailers across the United States, Four Sigmatic aims to reinvent coffee while unlocking the power of mushrooms.

Is Four Sigmatic the right choice for you? Should you buy organic coffee from Four Sigmatic? Please keep reading to learn everything you need to know about Four Sigmatic today in our review.

What is Four Sigmatic?

Four Sigmatic has offered mushroom formulas, adaptogen blends, and organic coffee products for 11 years.

The company traced its roots to the Finnish countryside and World War II when locals relied on rich Nordic lands for sustenance. The Finnish country is rich with lakes, forests – and mushrooms.

Four Sigmatic initially focused on mushrooms. Today, the company offers a range of products targeting mental performance and overall well-being.

Founder Tero Isokauppila leads Four Sigmatic. Foraging mushrooms has always been a tradition in the Isokauppila family. One day, Tero’s grandparents blended their favorite mushrooms into their daily cup of coffee, transforming their morning ritual.

Four Sigmatic offers mushrooms and adaptogens one hundred million cups later to revitalize your tastebuds, mind, and body. The company maintains an office in Santa Monica, California.

Four Sigmatic Benefits

Four Sigmatic Benefits

Four Sigmatic products are designed to offer different benefits. Some coffees enhance focus, for example, while others help with mood.

Here are some Four Sigmatic benefits, according to the official website:

  • Enhanced mental focus, energy, and mood
  • Organic coffee sourced from small, family-run, co-op farms
  • Blended with lion’s mane, chaga mushroom, and other science-backed adaptogens
  • Science-backed ingredients for calmness, energy, focus, mental clarity, and more
  • Caffeinated, half-caffeinated, and decaf options are available
  • Plant-based protein powders, organic superfood formulas, and other supplements are available

What Does “Four Sigmatic” Mean?

Four Sigmatic is a designation for the most nutrient-dense foods on the planet. Here’s how the official Four Sigmatic website explains the company’s name:

“Based on the 100 most-studied, most nutrient-dense foods on the planet, each “sigma” represents how far a food is from an average nutritional value. Four Sigmatic foods are beyond better. You might even say they’re the best.”

Most foods have a 0 sigmatic rating. They’re not particularly unhealthy or healthy. Other foods have a negative sigmatic rating. For example, processed foods have a negative four-sigmatic rating, while inorganic and modified foods have negative sigmatic ratings.

Four Sigmatic products feature four sigmatic ingredients. These ingredients are some of the most nutritionally dense foods on the planet. They include mushrooms, plant extracts, and other adaptogens in Four Sigmatic products.

Four Sigmatic Products

Four Sigmatic offers a lineup of coffees, creamers, protein powders, and supplements. You can also buy a starter kit to sample multiple Four Sigmatic products simultaneously.

Four Sigmatic separates its products into four categories, including:

  • Coffees & Creamers
  • Proteins
  • Supplements
  • Starter Kits

We’ll break down each category and the included products below.

Coffees & Creamers

Four Sigmatic is best known for its coffees and creamers. The company offers a lineup of organic coffees, including Think Balance, Calm, Happy Gut, and Protect. These coffees are blended with adaptogens to support various health and wellness goals.

Think Organic Coffee

Four Sigmatic’s Think is an organic coffee featuring lion’s mane and chaga mushrooms. By drinking this unique coffee daily, you can promote mental focus and energy. It’s a dark roast blend priced at around $19 per bag (340g of coffee per bag). According to Four Sigmatic, you can notice results in as little as seven days, experiencing a noticeable improvement in focus, energy, and mood.

Four Sigmatic  Organic Coffee

Think features notes of dark chocolate and nuts and is made from organic dark roast Arabica coffee, organic log-grown lion’s mane, and organic wildcrafted chaga. The coffee comes pre-ground and ready to use in a drip coffee maker, French press, or pour-over.

Four Sigmatic sources the coffee from a small, family-run Honduran co-op. Like other Four Sigmatic coffees, it’s organically certified with no mycelium or filler grains. It’s also tested for toxins.

Price: $38 for two bags

Balance Organic Half Caf Coffee

Four Sigmatic offers a half-caffeinated organic coffee blend called Balance. Priced at $19 per bag, Balance features lower caffeine and less stress via a half-caffeinated brew. Four Sigmatic has infused coffee with adaptogens to help balance the body and mind to find calmness.

Balance Organic Half Caf Coffee

Drinking Balance daily can stabilize stress levels, support a long-term positive mood, and boost energy with half the caffeine, among other benefits.

The medium roast blend coffee features caramel and nuts. It comes pre-ground and is ready to use however you like. In addition to coffee, Balance features organic ashwagandha, organic eleuthero, organic wildcrafted chaga, and organic tulsi.

Price: $38 for two bags

Think Organic Coffee

Think is an organic coffee designed to promote mental focus and energy. You can boost energy, support a long-term positive mood, and enhance mental focus using a blend of focus-enhancing mushrooms and organic dark roast whole bean coffee.

Think Organic Coffee

While other Four Sigmatic coffees come pre-ground, Think comes in whole bean, allowing you to grind it to your preferred size for espresso, drip coffee, pour-overs, French press, or cold brew.

Think is a dark roast blend featuring notes of dark chocolate and nuts. It has a regular amount of caffeine. The three ingredients include organic dark roast Arabica coffee beans, organic log-grown lion’s mane, and organic wildcrafted chaga.

Price: $38 for two bags

Happy Gut Organic Coffee

Four Sigmatic’s Happy Gut Organic Coffee is designed to support your gut-brain axis. By promoting gut health, you could think more clearly. Growing research proves the gut-brain axis exists, and ignoring gut health can lead to problems with focus, concentration, and mood problems.

Happy Gut Organic Coffee

Happy Gut is designed to smooth digestion, boost energy, and support long-term positive mood. To do that, the supplement features organic medium roast coffee along with probiotics, prebiotics, turkey tail mushroom, and chaga mushroom. The blend has notes of chocolate and caramel and comes pre-ground.

The active ingredients in Happy Gut include medium organic roast Arabica coffee, organic wildcrafted chaga, organic log-grown turkey tail, heat-resistant probiotics, and organic yacon juice powder (as a prebiotic). With coffee, mushrooms, probiotics, and prebiotics, Happy Gut aims to be the ultimate coffee for your gut. Four Sigmatic sources the coffee from a small, family-run Honduran co-op.

Price: $38 for two bags

Calm Organic Decaf Coffee

Calm Organic Decaf Coffee helps you de-stress and support a good mood by blending coffee with reishi and chaga mushrooms. If you want the benefits of Four Sigmatic’s mushroom coffee without caffeine, Calm could be the right choice.

Calm Organic Decaf Coffee

Some drink Calm for stress relief. Others drink it for mindfulness and a long-term positive mood. The medium roast coffee comes pre-ground and features nuts and brown sugar notes. The three active ingredients include organic medium roast decaf coffee, organic log-grown reishi, and organic wildcrafted chaga.

Price: $38 for two bags

Protect Organic Coffee

Four Sigmatic offers a box of instant coffee called Protect. Featuring chaga and cordyceps mushrooms, Protect gives you the benefits of Four Sigmatic coffee in instant powder.

Protect Organic Coffee

Each serving of Protect features chaga and cordyceps with organic instant coffee. According to Four Sigmatic, you can support your immune health, boost energy with half the caffeine, and promote a long-term positive mood, among other benefits.

Just stir one packet of Protect into hot water, then mix it instantly. Each serving contains 50mg of caffeine with notes of chocolate and caramel.

Price: $43 for three boxes

Think Organic Creamer

In addition to offering Think Organic Coffee, Four Sigmatic offers Think Organic Creamer in Vanilla Coconut or Cacao Coconut flavors. You can promote energy and focus using lion’s mane, L-theanine, and other active ingredients.

Think Organic Creamer

Add one tablespoon of Think into a mug, then pour in hot coffee or tea and froth or whisk. The caffeine-free creamer is made from organic coconut milk powder, natural Madagascar vanilla powder, organic monk fruit, organic green tea (with L-theanine), and organic log-grown lion’s mane mushrooms.

Enhance the benefits of your Four Sigmatic coffee by incorporating Think, the mushroom supplement. Or, you can add it to ordinary coffee to supercharge your morning cup.

Think is USDA Organic certified, dairy-free, caffeine-free, and gluten-free, and features 1g of sugar per tablespoon.

Price: $28.50 for two bags

Think Organic Latte Mix

The first of four latte mixes sold by Four Sigmatic, Think features organic coffee mixed with lion’s mane and chaga mushrooms to promote mental focus and energy. Like the original Think coffee and creamer blends, the Think Organic Latte Mix can enhance mental focus, boost energy with half the caffeine, and promote a long-term positive mood.

Think Organic Latte Mix

Each serving features around 50mg of caffeine. Pour one packet into a mug, add hot water or milk, and stir to make a smooth, creamy coffee latte.

Ingredients in Think Organic Latte Mix include organic coconut milk powder, medium organic roast instant coffee, organic log-grown lion’s mane, organic wildcrafted chaga, organic lucuma powder, organic mucuna, organic coconut palm sugar, and organic stevia.

Price: $38 for two boxes

Calm Organic Chai Latte Mix

Calm features the benefits of Four Sigmatic’s coffee mixed with other ingredients to create an instant latte. Just pour one packet into a mug, add hot water or milk, then stir and enjoy.

Calm Organic Chai Latte Mix

Each Calm Organic Chai Latte Mix features ginger, cinnamon, cardamom, clove, and black pepper. It’s also caffeine-free and dairy-free. For superior effects, you can enjoy warming chai spices with the calming benefits of reishi and turkey tail mushrooms.

The complete list of ingredients in Four Sigmatic’s Calm Organic Chai Latte Mix includes organic coconut milk powder, organic log-grown reishi spore powders, organic log-grown turkey tail, organic cinnamon, organic cardamom, organic ginger, organic clove powder, organic black pepper powder, organic coconut palm sugar, and organic stevia.

Price: $38 for two boxes

Happy Gut Organic Golden Latte Mix

Enjoy the benefits of Four Sigmatic’s Happy Gut coffee in a golden latte blend with the Happy Gut Organic Golden Latte Mix.

Happy Gut Organic Golden Latte Mix

Golden milk features a blend of turmeric with other ingredients. Four Sigmatic has put its twist on golden milk with a dairy-free, caffeine-free beverage to support gut health. Mix one packet in a mug with hot water or milk and stir, then enjoy rich, slightly spicy flavors.

Each serving of Four Sigmatic’s Organic Golden Latte Mix features organic coconut milk powder, organic turmeric, organic black pepper, organic log-grown turkey tail, organic ginger, organic tulsi, organic coconut palm sugar, and organic stevia.

Price: $38 for two bags

Think Organic Matcha Latte Mix

Think Organic Matcha Latte Mix combines the effects of matcha green tea with lion’s mane mushroom for proven focus. Like other Four Sigmatic latte mixes, it comes in a convenient, instant packet. Pour one package into a mug, add hot water or milk, and stir.

Think Organic Matcha Latte Mix

Think enhances mental focus and energy with 1/5th the energy of caffeine. You can enjoy stable energy levels with just 20mg of caffeine per serving. The formula has a smooth, earthy matcha latte flavor with a blend of organic coconut milk powder, organic ceremonial grade matcha, organic log-grown lion’s mane, organic moringa powder, organic coconut palm sugar, and organic stevia.

Price: $38 for two bags


Four Sigmatic offers a lineup of protein supplements, including organic plant-based protein that tastes great while supporting your body and mind.


Four Sigmatic’s protein is available in four flavors, including:

  • Sweet Vanilla
  • Peanut Butter
  • Creamy Cacao
  • Unflavored

Each plant-based protein powder features 18g of organic, plant-based protein per serving, 1,500mg of mushrooms, and adaptogens – all without fillers or artificial flavors. Daily protein powder can sustain energy, feel full, relieve mild stress, boost immunity, and relax.

Blend the protein powder in a smoothie or shake it with water or milk. You can also bake it with the protein (say, by making protein pancakes) or stir it into yogurt.

The complete list of ingredients in Four Sigmatic Proteins varies between flavors. Each serving contains organic lion’s mane, reishi, cordyceps, chaga, turkey tail, ashwagandha, and eleuthero. It’s also USADA Organic certified, gluten and soy free.

Price: $47.50 per tub


Four Sigmatic offers a lineup of supplements, including mushroom supplements, elixir formulas, immune-boosting supplements, and more. Many supplements contain similar ingredients to the Four Sigmatic lineup of coffees.

Focus Organic Mushroom Blend

The complete list in Four Sigmatic Supplements’ catalog includes the following:

Focus Organic Mushroom Blend ($57 for 2 Tubs): Focus Features seven adaptogens in an organic, caffeine-free, high-dose (1,500mg) blend to increase productivity, focus, and concentration. Take one scoop of Focus daily to boost brain health and memory, enhance productivity, boost concentration, and improve mental focus, among other benefits. Four Sigmatic recommends adding one scoop to your coffee, tea, or smoothie. The seven adaptogens in Focus include lion’s mane, cordyceps, Rhodiola rosea, bacopa monnieri, cacao, vitamin B12, and blueberry.

Balance Organic Mushroom Blend ($57 for 2 Tubs): Balance features 1,500mg of 8 powerful adaptogens per serving, helping you stabilize stress levels, restore a sense of calm, and promote overall brain health and memory. The eight adaptogens in Balance include chaga, reishi, moringa, tulsi, ashwagandha, eleuthero, amla, Schisandra, cinnamon, and yacon juice powder. Like Focus, Balance is designed to be mixed with coffee, teas, or smoothies. It features an earthy, slightly cinnamon flavor.

Protect Organic Mushroom Blend ($57 for 2 Tubs): Protect is an organic mushroom formula designed to support immunity and cognition using a blend of 1,500mg of adaptogens per serving. You get ten functional mushrooms in a high-dose combination with zero caffeine, helping to transform your daily coffee or smoothie. Active ingredients in Protect include chaga, reishi, cordyceps, lion’s mane, shiitake, maitake, enoki, Agaricus, meshima, tremella, and rose hips, all of which are USDA Organic certified.

Happy Gut Organic Super Powder ($47.50 for 2 Tubs): Happy Gut is an organic super powder designed to support gut and cognitive health with probiotics and turkey tail mushroom extract. Like other Four Sigmatic Happy Gut products, the supplement targets your gut-brain axis. Studies show a connection between your gut and your brain; people with poor gut health tend to have mental fog, lack of focus, and other issues. Each serving of Happy Gut Organic Super Powder contains 500mg of adaptogens with probiotics, prebiotics, and greens blend. Just mix one scoop into cold water or add it to your smoothie. Active ingredients include organic wheatgrass powder, organic kale powder, organic celery seed powder, organic moringa, organic wildcrafted chaga, organic log-grown turkey tail, heat-resistant probiotics, organic yacon juice powder, organic apple juice powder, and organic monk fruit.

Calm Organic Super Powder ($47.50 for 2 Tubs): Calm Organic Super Powder helps you de-stress and clear your mind with ashwagandha and tremella. The supplement features blueberry and lavender with other botanicals to promote overall relaxation. You get 500mg of organic adaptogens per serving, the proven de-stressing effects of magnesium, and the fresh flavors of blueberry and lavender. The caffeine-free blend works excellent when taken before bed to calm the mind.

Boost Organic Super Powder ($47.50 for 2 Tubs): Boost offers caffeine-free energy from 500mg of organic adaptogens and potent polyphenols, or plant-based antioxidants, from a blend of superfoods. Just mix the powder with cold water for mental clarity and energy. You can boost physical and psychological endurance, support a clearer mind, and enjoy a caffeine-free boost. The formula has a tart flavor with organic raspberry and pomegranate juice powder.

Think Organic Elixir Mix ($72.50 for 2 Tubs): The first of four elixirs available through the Four Sigmatic online store, Think blends lion’s mane mushroom and Rhodiola to support mental focus and clarity. You get a high dose (1,500mg) of lion’s mane mushroom to enhance focus and clarity. It has a smooth, earthy, and light flavor while being caffeine-free. Add one serving to hot water, coffee, tea, or a smoothie. In addition to 1,500mg of organic log-grown lion’s mane, the formula features Rhodiola, field mind, and rose hips.

Protect Organic Elixir Mix ($72.50 for 2 Tubs): Protect is the second elixir in the Four Sigmatic catalog, offering a high dose (1,500mg) of chaga mushroom to support immunity. The formula tastes earthy and rich, and many find it similar to coffee – but with no coffee or caffeine whatsoever. Add one serving to hot water or mix it into coffee or black tea. Active ingredients include 1,500mg of organic wildcrafted chaga, organic eleuthero, organic field mind, and organic rose hip.

Calm Organic Elixir Mix ($72.50 for 2 Tubs): Calm is an organic elixir mix with reishi mushroom and tulsi to help de-stress and calm mood. The caffeine-free formula tastes earthy and slightly better, and you can add it to hot water, coffee, cocoa, or tea. In addition to reishi and tulsi, the powder features organic field mint and rose hip.

Boost Organic Elixir Mix ($72.50 for 2 Tubs): The fourth and final elixir in the Four Sigmatic family; Boost supports overall energy with a blend of cordyceps mushroom and Schisandra berry. Schisandra has a long history of use in traditional Chinese medicine. Today, we know it works because it’s rich in vitamin C, one of nature’s best antioxidants. With 1,500mg of vegan cordyceps mushroom per serving, Boost is designed to provide a long-lasting, sustainable energy boost.

Calm Organic Cacao Mix ($38 for 2 Tubs): Four Sigmatic offers a hot chocolate-like product called Calm Organic Cacao Mix. Along with Boost Organic Cacao Mix, it’s one of two hot chocolate products in the Four Sigmatic family. The caffeine-free formula features organic, unrefined cacao mixed with reishi mushroom to give you all the tastiness and richness of chocolate without the guilt. You get dark, European-style hot chocolate with just 6mg of caffeine per packet. In addition to reishi and cacao, the formula features organic coconut palm sugar, cinnamon, cardamom extract, and stevia.

Boost Organic Cacao Mix ($38 for 2 Tubs): Boost enhances mental clarity and energy with cordyceps mushrooms and organic, unrefined cacao. Like Calm Organic Cacao Mix, Boost Organic Cacao Mix provides you with the flavor and richness of hot chocolate without guilt. You get dark, spicy hot chocolate featuring organic cordyceps, natural organic cacao, organic coconut palm sugar, and organic ginger. Just mix in 1/2 cup of hot water or milk and enjoy daily.

Starter Kits

Can’t decide which Four Sigmatic products to buy? Want to buy Four Sigmatic products for the entire family? Looking for frothers and additional bonus accessories? Four Sigmatic offers a range of starter kits to make life easier.

Starter Kits

Available starter kits include:

  • Think Starter Kit ($70): Includes 1 x Think Organic Creamer, 2 x Think Organic Coffee, and 1 x Focus Organic Mushroom Blend.
  • Fan Favorites Kit ($72): Includes 1 x Think Organic Coffee, 1 x Sweet Vanilla Organic Plant-based Protein, and 1 x Calm Organic Cacao.
  • Happy Gut Starter Kit ($68): Includes 2 x Happy Gut Organic Coffee, 1 x Happy Gut Organic Golden Latte, and 1 x Happy Gut Organic Super Powder.
  • Calm Starter Kit ($68): Includes 2 x Calm Organic Decaf Coffee, 1 x Calm Organic Cacao, and 1 x Calm Organic Super Powder.
  • Boost Starter Kit ($77): Includes 1 x Boost Organic High Caf Coffee, 1 x Boost Organic Super Powder, and 1 x Sweet Vanilla Organic Plant-based Protein.
  • Protect Starter Kit ($85): Includes 1 x Protect Organic Coffee, 1 x Creamy Cacao Organic Plant-based Protein, and 1 x Protect Organic Mushroom Blend.
  • Bestsellers Bundle ($72): Includes 1 x Think Organic Coffee, 1 x Sweet Vanilla Organic Plant-Based Protein, and 1 x Cacao Coconut Think Organic Creamer.
  • Mental Focus & Energy ($67): Includes 4 x Think Organic Coffee and 1 x Vanilla Coconut Think Organic Creamer.
  • Nourish & De-Stress ($104): Includes 2 x Sweet Vanilla Organic Plant-based Protein and 1 x Protect Organic Mushroom Blend.
  • Protein Variety Pack ($85): Includes 1 x Sweet Vanilla Organic Plant-based Protein and 1 x Creamy Cacao Organic Plant-based Protein.

Scientific Evidence for Four Sigmatic

Can blending mushrooms with coffee improve focus? Can you nullify some of the unwanted side effects of caffeine using lion’s mane, chaga, and other adaptogens? We’ll review some of the science behind Four Sigmatic below:

Lion’s mane mushroom is found in many Four Sigmatic blends. Studies show lion’s mane mushroom could improve cognitive function. A 2019 study, for example, found oral intake of lion’s mane mushroom (Hericium erinaceus) over 12 weeks improved scores on three separate tests, including the Mini-Mental State Examination (MMSE), Benton visual retention test, and Standard verbal paired-associate learning test (S-PA). Based on the study’s results, researchers concluded lion’s mane mushroom was a “safe and convenient method for dementia prevention.”

Chaga is also found in many Four Sigmatic coffees. According to the Memorial Sloan Kettering Cancer Center, chaga mushrooms could boost the immune system and reduce inflammation. The ingredient was commonly consumed as tea or used in cooking. Today, it’s found in high-powered herbal supplements like Four Sigmatic.

Ashwagandha is one of the world’s best-known adaptogens, which can help with stress response. Many take ashwagandha daily for stress response, calmness, relaxation, and sleep. In a 2012 study, researchers tested ashwagandha in a double-blind, placebo-controlled setting to analyze its effects on stress and anxiety in 64 adults. The group took 300mg of ashwagandha or a placebo over 60 days. After 60 days, those in the ashwagandha group had better individual resistance against stress and better self-reported improvements in quality of life compared to the placebo group.

Eleuthero, like ashwagandha, is a well-known adaptogen found in a handful of Four Sigmatic coffees and supplements. Also known as Siberian ginseng or Eleutherococcus senticosus, eleuthero is rich in natural chemicals – like phytosterols and saponins – linked to immunity, healthy inflammation, and blood sugar balance, among other benefits.

Several Four Sigmatic products contain tulsi, also known as holy basil. A 2017 study found tulsi was linked to therapeutic effects on metabolic disorders, cardiovascular disease, immunity, and neurocognition, among others.

Cordyceps is another popular mushroom found in several Four Sigmatic products. Some studies have connected cordyceps to immunity. A recent review found cordyceps could also support cardiovascular health, liver health, kidney health, and even your body’s natural defenses against cancer, among other benefits. Cordyceps works because it contains high levels of cordycepin, a natural chemical linked to various pharmacological effects.

Four Sigmatic products contain a blend of mushrooms, adaptogens, plant extracts, herbs, and other ingredients linked to health and wellness. Taking Four Sigmatic products daily could support your energy, immunity, and more without side effects.

Where to Buy Four Sigmatic

You can buy Four Sigmatic products on their official website and other online retailers.

Alternatively, you can buy Four Sigmatic products at Whole Foods, Sprouts, Fred Meyer, Wegmans, and many local co-op and natural food stores.

Four Sigmatic Reviews: What Do Users Say?

Four Sigmatic has strong reviews from users across the internet. Most customers like the taste and effectiveness of Four Sigmatic coffee, with many people experiencing a significant difference soon after taking Four Sigmatic coffee for the first time.

Here are some of the reviews shared by verified purchasers of Four Sigmatic’s coffee products, protein powders, and other supplements:

Many people like Four Sigmatic coffee because they experience the benefits of caffeine with fewer adverse side effects. They’re not anxious, for example, nor are they jittery or unfocused. Instead, they get coffee’s stimulant and energizing effects without the downside.

Some customers take Four Sigmatic to help with ADD and other diagnosed cognitive conditions. For example, one customer claims to take ADD medication daily and still struggles to focus. However, after taking Four Sigmatic, she has “much better focus and thought retention.”

Although some customers find Four Sigmatic coffee expensive, others find it’s worth the price. Many customers save money by signing up for subscriptions, buying bundles, or waiting for periodic sales.

Four Sigmatic has good reviews on Reddit from users of r/MushroomSupplements, r/Nootropics, and other subreddits. Although experienced nootropic users may want something more potent, many new users find the supplements work as advertised to provide powerful effects.

Many reviewers compare Four Sigmatic coffee and other products to MUD/WTR, Ryze, Ka’Chava, Athletic Greens, and more popular superfood formulas available online today.

Four Sigmatic’s flagship mushroom powder has an average rating of 4.5 stars out of 5 with 2,900+ reviews on Amazon, with most customers liking the product’s taste, texture, mixability, and overall effectiveness.

Four Sigmatic Refund Policy

Four Sigmatic lets you request a refund within 120 days of your purchase. Contact the company within 120 days for a full cash refund of your purchase.

If you are outside the 120-day return period, you can still receive a refund through online credit.

Contact Four Sigmatic

You can contact Four Sigmatic by phone from Monday to Friday from 9 am to 5 pm PST. Or, you can email the company at any time:

  • Phone: 1 (855) 400-8584 or (213) 699-4616
  • Email: [email protected]
  • Mailing Address: 1450 2nd St, Suite 210, Santa Monica, CA 90401, USA

The company is registered under the name Four Sigma Foods, Inc.

Final Word on Four Sigmatic

Four Sigmatic is a nutritional supplement and organic coffee company offering various products targeting different health and wellness goals.

Mixing mushrooms like lion’s mane and chaga into your coffee can promote focus, immunity, energy, and overall health using science-backed ingredients.

To learn more about Four Sigmatic’s coffee supplements and how they work or to buy Four Sigmatic coffees, supplements, and plant-based protein powders online today, visit the official website.

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Please understand that any advice or guidelines revealed here are not even remotely substitutes for sound medical or financial advice from a licensed healthcare provider or certified financial advisor. Make sure to consult with a professional physician or financial consultant before making any purchasing decision if you use medications or have concerns following the review details shared above. Individual results may vary and are not guaranteed as the statements regarding these products have not been evaluated by the Food and Drug Administration or Health Canada. The efficacy of these products has not been confirmed by FDA, or Health Canada approved research. These products are not intended to diagnose, treat, cure or prevent any disease and do not provide any kind of get-rich money scheme. Reviewer is not responsible for pricing inaccuracies. Check product sales page for final prices.

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