Blue-Green Algae Powder by Source Naturals — Ingredients, Evidence & Safety

🟢 100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
Limited research evidence available for ingredients

B Label Compliance Grade

Product Label

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Label Data

0.5 Gram(s) Serving Size

113 Servings

Non-Nutrient/Non-Botanical Product Type

0% Evidence Coverage

Supplement Facts — Evidence Check

Organic Blue-Green Algae Blend

500 mg

📊 Market median: 200.0mg (107 products)

Median 200.0mg This product: 500mg

Label Claims — Verification

❓ All Other

All Other (98% of products) Structure/Function (82% of products) Nutrient (38% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

Suggested Use: 1/4 teaspoon daily, mixed in water or juice. Do not exceed suggested use.

⚠️ Warnings & Precautions

Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing.

Keep out of the reach of children.

🧪 Formulation Notes

From Klamath Lake

Source Naturals, Blue-Green Algae is wild-crafted and harvested in the prime upper regions of Upper Klamath Lake, Oregon, and is of the highest quality available. Its name comes from the two color pigments it contains: phycocyanin, which is blue, and chlorophyll, which is green.

Contains no dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, preservatives, or artificial color, flavor or fragrance.

Additional Information

Store in a cool, dry place.

Product Details

UPC / SKU 0 21078 00174 4

DSLD Entry Date 2019-12-22

Product Type Non-Nutrient/Non-Botanical

Form Powder

Brand Source Naturals

DSLD ID 211629

Data Updated 2026-04-11

Research Evidence

10 Research Sources

51 Avg Quality Score

3 Meta Analysis

3 Rct

2 Systematic Review

2 Clinical Trial

B The effect of Spirulina supplementation on lipid profile: GRADE-assessed systematic review and dose-response meta-analysis of data from randomized controlled trials

Meta Analysis Pharmacological research 2023

PubMed DOI

B A systematic review and meta-analysis of the impact of Spirulina supplementation on plasma lipid concentrations

Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2016

PubMed DOI

B Potential benefits of microalgae intake against metabolic diseases: beyond spirulina-a systematic review of animal studies

Systematic Review Nutrition reviews 2024

PubMed DOI

C The effects of Spirulina supplementation on metabolic syndrome components, its liver manifestation and related inflammatory markers: A systematic review

Systematic Review Complementary therapies in medicine 2019

PubMed DOI

C The effects of spirulina on glycemic control and serum lipoproteins in patients with metabolic syndrome and related disorders: A systematic review and meta-analysis of randomized controlled trials

Meta Analysis Phytotherapy research : PTR 2019

PubMed DOI

C The effects of spirulina intake on clinical and metabolic parameters in Alzheimer's disease: A randomized, double-blind, controlled trial

Rct Phytotherapy research : PTR 2023

PubMed DOI

C Antioxidant Efficacy of a Spirulina Liquid Extract on Oxidative Stress Status and Metabolic Disturbances in Subjects with Metabolic Syndrome.

Rct Marine drugs

PubMed DOI

C Combined high-intensity interval training and spirulina supplementation synergistically improve inflammatory and lipid-associated biomarkers in men with obesity.

Rct Nutrition research (New York, N.Y.)

PubMed DOI

C The Effects of Spirulina Platensis on Insulin Resistance in HIV-infected Patients

Clinical Trial ClinicalTrials.gov 2008

ClinicalTrials.gov

C Carbon-13 (13C)-Spirulina Platensis Gastric Emptying Breath Test (GEBT)

Clinical Trial ClinicalTrials.gov 2010

ClinicalTrials.gov

View all evidence for Spirulina →