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Thorne Advanced Pre-Workout (Rainbow Sherbet supplement bottle
Thorne

Advanced Pre-Workout (Rainbow Sherbet Review

What We Researched
8 active ingredients analyzed · 11 inactive ingredients decoded · 10 brand certifications checked · Page generated: Sep 2026
95
Product Score Excellent
98
Brand Score Excellent

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Alpha GPC 600 mg —
L-Theanine 200 mg —
L-Citrulline 5 g —
Caffeine 200 mg —
Vitamin B12 100 mcg —
Vitamin B6 5 mg —
Carnosyn Beta-Alanine 3.2 g —
Bioavailability Very Good

Absorption Rating

  • L-Theanine Good
  • L-Citrulline Good
  • Caffeine Good
  • Vitamin B12 Fair
  • Vitamin B6 Fair
  • Carnosyn Beta-Alanine Good
Other Ingredients Excellent

Fillers & Additives

  • Natural Flavors
  • Maltodextrin
  • Malic Acid
  • Monk Fruit
  • Vegetable Juice
  • Carob Color
  • Turmeric
  • Citric Acid
  • Calcium Silicate
  • Silicon Dioxide
  • Rebaudioside M
Efficacy Excellent

Dosage Analysis

  • L-Theanine 200 mg Effective
  • L-Citrulline 5 g Effective
  • Caffeine 200 mg Effective
  • Vitamin B12 100 mcg Effective
  • Vitamin B6 5 mg Effective
  • Carnosyn Beta-Alanine 3.2 g Effective

Supplement Facts

Ingredient Amount % Daily Value
Sodium 15 mg
Alpha GPC 600 mg
L-Theanine 200 mg
L-Citrulline 5 g
Caffeine 200 mg
Vitamin B12 100 mcg
Vitamin B6 5 mg
Carnosyn Beta-Alanine 3.2 g

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Natural Flavors Safe

Improves taste of chewable, gummy, or liquid supplements.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Malic Acid Safe

Adds tartness and enhances fruit flavors in gummies and chewables.

Monk Fruit Safe

It is used as a natural, low-calorie sweetener.

Vegetable Juice Unknown
Carob Color Generally_safe

It is used as a natural brown colorant.

Turmeric Safe

Provides natural yellow color.

Citric Acid Safe

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

Calcium Silicate Safe

Prevents ingredient clumping during manufacturing.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Rebaudioside M Unknown
Brand Trust Report
Thorne

Founded 1984 · New York, NY, United States · 204 products · thorne.com

Certifications

10 certifications
Nsf Certified For Sport Source available Primary evidence
Nsf Gmp Source available Primary evidence
Fda Gmp Inspections Source available Primary evidence
NSF Certified for Sport Supporting evidence unavailable
NSF Contents Certified Supporting evidence unavailable
Informed Choice Supporting evidence unavailable
Informed Sport Supporting evidence unavailable
Eurofins Certified Supplement Supporting evidence unavailable
Eurofins Clean Sport Supporting evidence unavailable
NSF Certified Supporting evidence unavailable

Transparency

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

Violation History

2 incidents
Recall Captomer, Captomer-2502014-06-12 Source available Primary source
Prop 65 Lead2013-12-13 Source available Primary source
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Frequently Asked Questions
Is Thorne Advanced Pre-Workout (Rainbow Sherbet a good supplement?

Thorne Advanced Pre-Workout (Rainbow Sherbet received a product quality score of 95/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 8 active ingredients with 20 servings per container. Of the 11 inactive ingredients, 9 are rated safe and 0 ingredients are flagged for review. The manufacturer, Thorne, holds a brand trust score of 98/100.

What are the ingredients in Thorne Advanced Pre-Workout (Rainbow Sherbet?

Thorne Advanced Pre-Workout (Rainbow Sherbet contains 8 active ingredients: Sodium (15 mg), Alpha GPC (600 mg), L-Theanine (200 mg), L-Citrulline (5 g), Caffeine (200 mg), Vitamin B12 (100 mcg), and 2 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Thorne Advanced Pre-Workout (Rainbow Sherbet safe to take?

GoodSupp reviewed the inactive-ingredient data available for Thorne Advanced Pre-Workout (Rainbow Sherbet. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. 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 98/100 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 204 products in their lineup. 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 — read our methodology. 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.