Life Extension Optimized Carnitine, 60 Capsules supplement bottle
Life Extension

Optimized Carnitine, 60 Capsules

What We Researched
3 active ingredients analyzed · 3 inactive ingredients decoded · 3 brand certifications checked · 3 retailers compared · Last updated: Mar 2026
58
Product Score Poor
86
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Acetyl L-Carnitine HCl 800 mg **
Acetyl L-Carnitine Arginate Di-HCl 300 mg **
Glycine Propionyl L-Carnitine HCl 300 mg **
Bioavailability Very Poor

Absorption Rating

  • Acetyl L-Carnitine HCl Poor
  • Acetyl L-Carnitine Arginate Di-HCl Poor
  • Glycine Propionyl L-Carnitine HCl Poor
Other Ingredients Excellent

Fillers & Additives

  • Vegetable Cellulose (Capsule)
  • Vegetable Stearate
  • Silica
Efficacy Poor

Dosage Analysis

  • Acetyl L-Carnitine HCl 800 mg Effective
  • Acetyl L-Carnitine Arginate Di-HCl 300 mg Under-dosed
  • Glycine Propionyl L-Carnitine HCl 300 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Acetyl L-Carnitine HCl 800 mg **
Acetyl L-Carnitine Arginate Di-HCl 300 mg **
Glycine Propionyl L-Carnitine HCl 300 mg **

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Vegetable Cellulose (Capsule) Safe

It is used as a material for making vegetarian capsules.

Vegetable Stearate Safe

Prevents ingredients from sticking to equipment.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$25$24$23$22$21 Mar 12 $23.25$23.25
iHerb
Vitacost

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

Brand Trust Report
Life Extension

Founded 1980 · Fort Lauderdale, Florida, USA · 352 products · lifeextension.com

Certifications

3 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Nsf Gmp Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
Testing Lab Disclosure — Claimed

Violation History

2 incidents
Prop 65 Lead2018-04-13Source
Fda Warning Making drug claims for dietary supplements, suggesting they can treat, mitigate, or prevent diseases such as breast cancer and Alzheimer's.2017-02-01Source
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Frequently Asked Questions
Is Life Extension Optimized Carnitine, 60 Capsules a good supplement?

Life Extension Optimized Carnitine, 60 Capsules received a product quality score of 58/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 3 active ingredients with 30 servings per container. All 3 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Life Extension, holds a brand trust score of 86/100 with 3 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp.

What are the ingredients in Life Extension Optimized Carnitine, 60 Capsules?

Life Extension Optimized Carnitine, 60 Capsules contains 3 active ingredients: Acetyl L-Carnitine HCl (800 mg), Acetyl L-Carnitine Arginate Di-HCl (300 mg), Glycine Propionyl L-Carnitine HCl (300 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Life Extension Optimized Carnitine, 60 Capsules safe to take?

Life Extension Optimized Carnitine, 60 Capsules has been analyzed for ingredient safety across all its components. All 3 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Life Extension a trustworthy supplement brand?

Life Extension receives a brand trust score of 86/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1980 and headquartered in Fort Lauderdale, Florida, USA, the company offers 352 products in their lineup. They hold 3 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Life Extension 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.