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Thorne Acetyl-L-Carnitine

Acetyl-L-Carnitine

98Score
Grade A · capsule · 60 servings · $32.00

Scored by the Formulate Research Team · Last reviewed May 2026

Amino AcidsBrain HealthEnergyCognition

Overview: Thorne Acetyl-L-Carnitine

Supports cognitive function and healthy nerve sensations in the hands and feet* Acetyl-L-Carnitine enhances neurotransmitter regulation, which can support optimal nerve function.*

Score Breakdown

Formulate scores every product across six weighted dimensions. Each dimension is graded independently — hover or tap to see what drove each component.

Evidence Qualityweight 30%
100/ 100
Dose Adequacyweight 25%
95/ 100
Form/Bioavailabilityweight 15%
100/ 100
Transparencyweight 15%
100/ 100
Safety/Redundancyweight 10%
100/ 100
Manufacturing Qualityweight 5%
90/ 100

Ingredients per Serving

IngredientAmount
Acetyl-L-CarnitineChloride1500 mg

Certifications & Testing

NSF CertifiedGluten FreeDairy FreeSoy FreeThorne VerifiedNatural FlavorsNatural ColorsGMP Certified

Other Ingredients

Hypromellose (derived from cellulose) capsule, Leucine, Microcrystalline Cellulose, Silicon Dioxide

Recommended Use

Take 1 capsule two to three times daily or as recommended by your health-care practitioner.

Warnings

ALLERGY WARNING This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. PREGNANCY If pregnant, consult your health-care practitioner before using this product. INTERACTIONS There are no known adverse interactions or contraindications at publication date.

Frequently Asked Questions

What is Thorne Acetyl-L-Carnitine's Formulate score?

Thorne Acetyl-L-Carnitine scores 98 out of 100 (grade A) on Formulate's ingredient-level rubric, which weighs evidence quality, dose accuracy, bioavailability, transparency, safety, and manufacturing practices.

Is Thorne Acetyl-L-Carnitine worth it?

Thorne Acetyl-L-Carnitine scores 98/100 (grade A). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.

What's in Thorne Acetyl-L-Carnitine?

Each serving contains Acetyl-L-Carnitine (1500 mg). Serving size: 1 Capsule. 60 servings per container.

How do I take acetyl-l-carnitine?

Take 1 capsule two to three times daily or as recommended by your health-care practitioner.

Who makes Acetyl-L-Carnitine?

Acetyl-L-Carnitine is made by Thorne. See Formulate's full grade and product lineup for Thorne on its brand page.

Is Thorne Acetyl-L-Carnitine third-party tested?

Thorne lists the following certifications and testing for this product: NSF Certified, Gluten Free, Dairy Free, Soy Free, Thorne Verified, Natural Flavors, Natural Colors, GMP Certified.

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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.