Thorne SynaQuell, 8.17 oz (231.7 g) supplement bottle
Thorne

SynaQuell, 8.17 oz (231.7 g)

What We Researched
15 active ingredients analyzed · 4 inactive ingredients decoded · 4 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
80
Product Score Good
90
Brand Score Excellent

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Total Carbohydrates 1 g <1%*
Riboflavin (as Riboflavin 5'-Phosphate Sodium) 25 mg 1,923%
Magnesium (as Magnesium Beta Hydroxybutyrate) 59 mg 14%
L-Leucine 1.25 g **
L-Isoleucine 625 mg **
L-Valine 625 mg **
Beta Hydroxybutyrate (as Magnesium Beta Hydroxybutyrate) 500 mg **
Glutathione (Reduced) 250 mg **
Nicotinamide Riboside Hydrogen Malate 207.5 mg **
Curcumin Phytosome† (Curcuma longa extract (root)/ Phospholipid complex from Sunflower) 125 mg **
DHA (Docosahexaenoic Acid) (from Algal Oil) 125 mg **
Trans-Resveratrol 125 mg **
Coenzyme Q10 Phytosome† (Coenzyme Q10/ Phospholipid complex from Sunflower) 50 mg **
Betaine Anhydrous (Trimethylglycine) 42.5 mg **
Bioavailability Very Good

Absorption Rating

  • Total Carbohydrates Fair
  • Riboflavin (as Riboflavin 5'-Phosphate Sodium) Good
  • Magnesium (as Magnesium Beta Hydroxybutyrate) Good
  • L-Leucine Good
  • L-Isoleucine Good
  • L-Valine Good
  • Beta Hydroxybutyrate (as Magnesium Beta Hydroxybutyrate) Fair
  • Glutathione (Reduced) Good
  • Nicotinamide Riboside Hydrogen Malate Good
  • Curcumin Phytosome† (Curcuma longa extract (root)/ Phospholipid complex from Sunflower) Good
  • DHA (Docosahexaenoic Acid) (from Algal Oil) Fair
  • Trans-Resveratrol Good
  • Coenzyme Q10 Phytosome† (Coenzyme Q10/ Phospholipid complex from Sunflower) Good
  • Betaine Anhydrous (Trimethylglycine) Good
Other Ingredients Excellent

Fillers & Additives

  • Citric Acid
  • Flavors
  • Stevia Extract (Leaf)
  • Carboxymethylcellulose gum
Efficacy Poor

Dosage Analysis

  • Riboflavin (as Riboflavin 5'-Phosphate Sodium) 25 mg Effective
  • Magnesium (as Magnesium Beta Hydroxybutyrate) 59 mg Under-dosed
  • L-Leucine 1.25 g Under-dosed
  • L-Isoleucine 625 mg High
  • L-Valine 625 mg Effective
  • Beta Hydroxybutyrate (as Magnesium Beta Hydroxybutyrate) 500 mg Under-dosed
  • Glutathione (Reduced) 250 mg Effective
  • Nicotinamide Riboside Hydrogen Malate 207.5 mg High
  • Curcumin Phytosome† (Curcuma longa extract (root)/ Phospholipid complex from Sunflower) 125 mg Under-dosed
  • DHA (Docosahexaenoic Acid) (from Algal Oil) 125 mg Under-dosed
  • Trans-Resveratrol 125 mg Under-dosed
  • Coenzyme Q10 Phytosome† (Coenzyme Q10/ Phospholipid complex from Sunflower) 50 mg Under-dosed
  • Betaine Anhydrous (Trimethylglycine) 42.5 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 23
Total Carbohydrates 1 g <1%*
Riboflavin (as Riboflavin 5'-Phosphate Sodium) 25 mg 1,923%
Magnesium (as Magnesium Beta Hydroxybutyrate) 59 mg 14%
L-Leucine 1.25 g **
L-Isoleucine 625 mg **
L-Valine 625 mg **
Beta Hydroxybutyrate (as Magnesium Beta Hydroxybutyrate) 500 mg **
Glutathione (Reduced) 250 mg **
Nicotinamide Riboside Hydrogen Malate 207.5 mg **
Curcumin Phytosome† (Curcuma longa extract (root)/ Phospholipid complex from Sunflower) 125 mg **
DHA (Docosahexaenoic Acid) (from Algal Oil) 125 mg **
Trans-Resveratrol 125 mg **
Coenzyme Q10 Phytosome† (Coenzyme Q10/ Phospholipid complex from Sunflower) 50 mg **
Betaine Anhydrous (Trimethylglycine) 42.5 mg **

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Flavors Generally_safe

It is added to supplements to improve the taste.

Stevia Extract (Leaf) Generally_safe

It is added to improve the taste of the supplement.

Carboxymethylcellulose gum Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$65$64$63$62$61 Mar 12 $63.00
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Thorne

Founded 1984 · New York, NY, United States · 161 products · thorne.com

Certifications

4 certifications
Consumerlab Verified
Nsf Certified For Sport Verified Source
Nsf Gmp Verified Source
Fda Gmp Inspections Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source

Violation History

2 incidents
Recall Captomer, Captomer-2502014-06-12Source
Prop 65 Lead2013-12-13Source
Related Supplements
Frequently Asked Questions
Is Thorne SynaQuell, 8.17 oz (231.7 g) a good supplement?

Thorne SynaQuell, 8.17 oz (231.7 g) received a product quality score of 80/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 15 active ingredients with 30 servings per container. Of the 4 inactive ingredients, 1 are rated safe and 0 are flagged for review. The manufacturer, Thorne, holds a brand trust score of 90/100 with 4 verified certifications including Consumerlab, Nsf Certified For Sport, Nsf Gmp, Fda Gmp Inspections.

What are the ingredients in Thorne SynaQuell, 8.17 oz (231.7 g)?

Thorne SynaQuell, 8.17 oz (231.7 g) contains 15 active ingredients: Calories (23), Total Carbohydrates (1 g), Riboflavin (as Riboflavin 5'-Phosphate Sodium) (25 mg), Magnesium (as Magnesium Beta Hydroxybutyrate) (59 mg), L-Leucine (1.25 g), L-Isoleucine (625 mg), and 9 more. Notable high-dose ingredients include Riboflavin at 1,923% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Thorne SynaQuell, 8.17 oz (231.7 g) safe to take?

Thorne SynaQuell, 8.17 oz (231.7 g) has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Thorne a trustworthy supplement brand?

Thorne receives a brand trust score of 90/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1984 and headquartered in New York, NY, United States, the company offers 161 products in their lineup. They hold 4 verified certifications including Consumerlab, Nsf Certified For Sport, Nsf Gmp, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Thorne has 2 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.