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Best Protein Powder

Four Sigmatic

Organic Plant-Based Protein

Four Sigmatic Organic Plant-Based Protein is a plant blend protein powder with 20 g of protein per 1 scoop (40 g). It scores 41/100 on the TBPP Quality Score. It is USDA Organic.

No third-party testing foundProprietary blend
Our score
41/100
Methodology v1.0
Protein
20g
1 scoop (40 g)
Sugar
2g
Per serving
Protein by weight
50%
Per serving
$3.33
$4.17 per 25 g protein

Nutrition per serving

Chocolate flavor, from the label.

Nutrition per serving
Serving size1 scoop (40 g)
Protein20 g
Calories170
Carbohydrates10 g
Sugar2 g
Fat6 g
Sodium290 mg
Protein by weight50%
LeucineNot verified
BCAAsNot verified

How it scored

41 of 100 points. How we score

CriterionPointsWhy
Protein density6 / 3050% of each scoop is protein
Third-party testing0 / 25No verified independent testing program
Label transparency10 / 20uses a proprietary blend
Sugar10 / 102 g sugar per serving
Ingredient simplicity10 / 10Natural flavors and sweeteners
Verified label data5 / 57 of 7 label values verified

Formula and label

Formula and label
TypePlant Blend
Protein sourcesOrganic Brown Rice Protein, Organic Pea Protein, Organic Hemp Protein
Third-party testingUSDA Organic
SweetenersOrganic Coconut Palm Sugar, Organic Monk Fruit Extract
Proprietary blendYes
Added free amino acidsNo
DietaryVegan, Gluten-Free, Dairy-Free, Organic
AllergensTree Nuts (Coconut)
Made byFour Sigmatic
Sold atFour Sigmatic (direct)

Price

$50.00 for 1-pack, about 15 servings. About $3.33 per serving, or $4.17 per 25 g of protein.

Sizes: 15 servings (600 g)

Flavors (4)

  • Chocolate
  • Vanilla
  • Peanut Butter
  • Unflavored

Caffeine and herbs

What our record of the label says, word for word.

Herbs and botanicals
reishi, lion's mane

If you're pregnant or nursing, ask your OB, midwife or doctor about caffeine and herbs. What to check on the label

Sources

Nutrition for Chocolate from the Supplement Facts image on the brand product page (protein-chocolate-ing.jpg, 2026-10-14): 1 scoop 40 g, about 15 servings, 170 kcal, 6 g fat, 10 g carbs (5 g fiber), 2 g total sugars (1 g added), 290 mg sodium, 20 g protein. Organic Protein Blend (21.2 g: brown rice, pea and hemp protein) has no per-ingredient amounts, so contains_proprietary_blend is true; it also contains a 500 mg mushroom blend (turkey tail, lion's mane, reishi), a greens and fruit blend and Bacillus subtilis. Other ingredients: organic cacao, organic coconut milk powder, organic coconut palm sugar, Himalayan salt, organic monk fruit extract. USDA Organic, gluten-free and plant-based are brand claims on the page. Price $50 one-time for a 1-pack (15 servings, $3.33/serving; 600 g shipping weight in the store feed). Country left null: not stated on the brand site.

Good to know

Last checked 2026-10-14. Labels change, so check the package before buying if you have allergies. If you are pregnant, nursing or buying for a child, ask your doctor before adding a supplement.