$27.00 $0.30 per serving
Product analysis
Acetyl-L-Carnitine offers a reasonably priced supplement with limited fatigue-related support in older adults with a clinical fatigue condition.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality40
The hydrochloride preparation is clearly identified, making the ingredient easier to characterize. A comparative quality or absorption advantage remains uncertain.
Ingredient Transparency100
The amount and hydrochloride preparation are clearly stated. That allows a direct serving comparison without assuming the same amount of free carnitine.
Value For Money75
The acetyl-L-carnitine contribution offers reasonably favorable value. Its single active ingredient makes the cost comparison straightforward.
Customer Satisfaction81
Customers report very high satisfaction across hundreds of ratings. The review base provides useful context for customer opinion without demonstrating fatigue or cognitive effects.
Product Focus57
The fatigue-related evidence is limited to particular older adults with a clinical condition. Its normal role in cellular energy does not establish routine focus, productivity or memory benefits in healthy adults.
- Format
Capsule - Container
- 90 Capsule(s)
- Per serving
- $0.30
- Customer rating
- 4.9 · 456 ratings
Goals
Impact
High effect
Acetyl L-Carnitine · 500 mg
Acetyl L-carnitine participates in energy metabolism and acetylcholine-related processes. These mechanisms do not establish routine acute focus enhancement; longer studies in disease populations do not answer the one-serving question. The declared 500 mg per serving receives partial amount recognition, but that comparison does not turn it into a proven focus dose.
How this product is rated for Mental Focus
Ingredient fit72
Acetyl L-Carnitine provide the recognized goal connection within the declared formula. Some declared amounts receive partial recognition.
Goal fit
Acetyl L-Carnitine provide the recognized goal connection within the declared formula.
Dose adequacy
Some recognized ingredients receive partial amount recognition per serving; the comparison endpoints do not establish clinically effective focus doses.
Pathways40
The strongest recognized connection is brain-energy-related functions; pathway coverage does not itself prove an attention benefit.
Depth
The strongest recognized connection is brain-energy-related functions; pathway coverage does not itself prove an attention benefit.
Breadth
brain-energy-related functions provides the substantial pathway coverage. Other biological roles do not establish additional acute effects.
Evidence83
Acetyl L-Carnitine provides the strongest recognized evidence contribution; supplied preparation, population and duration limits still constrain the focus benefits that can be expected.
Evidence strength
Acetyl L-Carnitine provides the strongest recognized evidence contribution; supplied preparation, population and duration limits still constrain the focus benefits that can be expected.
Studied preparation
The recognized ingredients meet the preparation check; this does not establish that every nutrient or formulation improves acute attention.
Formulation logic100
No recognized ingredient lacks a required partner; that does not establish added benefit from combining ingredients. No configured ingredient conflict was identified in the supplied facts.
Partner coverage
No recognized ingredient lacks a required partner; that does not establish added benefit from combining ingredients.
Conflicts
No configured ingredient conflict was identified in the supplied facts.
Effective doses
The recognized ingredients meet the amount threshold; this comparison convention does not establish a proven effective focus dose.
Impact
High effect
Acetyl L-carnitine has a role in energy metabolism, but energy mechanisms and disease-cohort findings do not establish cognitive improvement in healthy adults. The large Alzheimer trial did not meet its main outcomes. The 500 mg serving receives partial recognition in the saved findings, without establishing routine memory or attention benefits.
How this product is rated for Brain Health
Ingredient fit72
Acetyl L-carnitine is the sole credited ingredient.
Goal fit
Acetyl L-carnitine is the sole credited ingredient.
Dose adequacy
The 500 mg serving receives partial amount-based recognition.
Pathways19
Brain energy metabolism is the strongest represented area. Other areas have limited coverage.
Depth
Brain energy metabolism is the strongest area in the saved findings; pathway mapping does not establish an improvement in cognition.
Breadth
No area reaches the saved threshold for substantial coverage.
Evidence76
Acetyl L-Carnitine leads the saved evidence finding. The credited preparations are recognized by the saved findings.
Evidence strength
Acetyl L-Carnitine leads the saved evidence finding; its recognized role does not establish broad cognitive enhancement.
Studied preparation
The saved findings recognize the preparations of the credited ingredients; this does not establish universal clinical benefit.
Formulation logic100
No unmet partner requirement or configured conflict was found. All credited ingredients clear the amount threshold used for inclusion.
Partner coverage
Each credited ingredient works independently or has its required partner.
Conflicts
No configured conflict was matched among the evaluated combinations.
Effective doses
All credited ingredients clear the inclusion threshold; that threshold does not prove an effective clinical dose.
Impact
High effect
Acetyl L-Carnitine · 500 mg
Acetyl L-carnitine has been studied for fatigue in older adults with a clinical fatigue condition. That result does not establish routine energy benefit for other adults. This serving declares acetyl-L-carnitine HCl, and its 500 mg amount cannot simply be treated as an equivalent free-carnitine exposure or a proven fatigue-treatment dose.
How this product is rated for Energy
Ingredient fit72
Acetyl L-carnitine has a relevant nutritional or fatigue-related connection, but the amount comparison cannot establish clinical benefit.
Goal fit
Acetyl L-carnitine provides the relevant connection, while the product's wider purposes affect its focus on energy.
Dose adequacy
The 500 mg serving receives a partial amount finding; HCl mass is not assumed equivalent to free acetyl L-carnitine.
Pathways40
The saved findings concentrate on mitochondrial energy production; a mechanism alone does not establish routine fatigue relief.
Depth
The saved findings concentrate on mitochondrial energy production; a mechanism alone does not establish routine fatigue relief.
Breadth
The saved coverage is limited to mitochondrial energy production, with no broader energy pathways covered.
Evidence95
The carnitine fatigue findings concern older adults with clinical fatigue and cannot establish routine benefit for this serving.
Evidence strength
The carnitine fatigue findings concern older adults with clinical fatigue and cannot establish routine benefit for this serving.
Studied preparation
The saved finding accepts the preparation, while the supplied context preserves the distinction between HCl and free acetyl L-carnitine.
Formulation logic100
The included ingredients require no additional partner in the saved findings, and no matching conflict was identified. Their minimum amount check is satisfied.
Partner coverage
No additional partner is required for the included ingredients under the saved findings.
Conflicts
No matching conflict was identified by the supplied checks.
Effective doses
All ingredients included in this check meet its minimum amount threshold; that finding does not prove routine fatigue relief.
Impact
High effect
Acetyl L-Carnitine · 500 mg
Acetyl-L-carnitine participates in cellular energy processes, but its supplied cognitive evidence comes from disease cohorts. It does not establish improved focus or memory in healthy adults. The 500 mg serving receives partial saved exposure recognition without demonstrating a proven routine cognitive dose. The hydrochloride form does not establish an extra cognitive advantage.
How this product is rated for Cognitive Support
Ingredient fit72
Acetyl-L-carnitine is the sole counted ingredient. The 500 mg serving receives partial saved exposure recognition.
Goal fit
Acetyl-L-carnitine is the sole counted ingredient.
Dose adequacy
The 500 mg serving receives partial saved exposure recognition.
Pathways40
Cellular energy is the sole represented pathway.
Depth
Cellular energy is the sole represented pathway.
Breadth
One pathway reaches the saved coverage threshold, leaving other cognitive routes unrepresented.
Evidence79
Disease-cohort findings do not establish healthy-adult cognitive enhancement.
Evidence strength
Disease-cohort findings do not establish healthy-adult cognitive enhancement.
Studied preparation
The counted ingredients receive a saved preparation match; this alone does not demonstrate improved cognition.
Formulation logic100
The counted ingredients meet the saved minimum exposure threshold, with no missing required partner or configured conflict.
Partner coverage
The counted ingredients have no missing required partner; this does not establish an added benefit from combining them.
Conflicts
No configured ingredient conflict was identified; this is not a general safety assessment.
Effective doses
All counted ingredients meet the saved minimum exposure threshold; this does not establish clinically effective cognitive doses.
Impact
Moderate effect
Acetyl-L-carnitine at 500 mg relates to mitochondrial energy processes. The supplied clinical evidence does not establish preservation of function in healthy adults or a longer lifespan, so its relevance to longevity remains limited.
How this product is rated for Longevity
Ingredient fit72
The relevant ingredients are fairly focused on the assessed aspects of healthy aging. The assessed ingredients provide partial exposure matches.
Goal fit
The relevant ingredients are fairly focused on the assessed aspects of healthy aging.
Dose adequacy
The assessed ingredients provide partial exposure matches.
Pathways11
The strongest saved contribution relates to mitochondrial energy production, with partial coverage. No assessed pathway reaches the saved substantial-coverage threshold.
Depth
The strongest saved contribution relates to mitochondrial energy production, with partial coverage.
Breadth
No assessed pathway reaches the saved substantial-coverage threshold.
Evidence63
Acetyl L-Carnitine provides the strongest assessed evidence at an eligible amount; that finding does not measure lifespan extension. The ingredients included at eligible amounts match the preparations recognized in the saved findings.
Evidence strength
Acetyl L-Carnitine provides the strongest assessed evidence at an eligible amount; that finding does not measure lifespan extension.
Studied preparation
The ingredients included at eligible amounts match the preparations recognized in the saved findings.
Formulation logic100
The assessed ingredients can contribute alone or have their required partner. No configured ingredient conflict was identified. 1 of 1 assessed ingredients meet the saved minimum exposure threshold. That threshold does not establish an anti-aging benefit.
Partner coverage
The assessed ingredients can contribute alone or have their required partner.
Conflicts
No configured ingredient conflict was identified.
Effective doses
1 of 1 assessed ingredients meet the saved minimum exposure threshold. That threshold does not establish an anti-aging benefit.
Impact
Lower effect
Acetyl L-Carnitine · 500 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Acetyl-L-Carnitine (Acetyl-L-Carnitine HCl) | 500 mg |
Acetyl L-Carnitine (Acetyl-L-Carnitine HCl) · 500 mg OverallScore93
Each serving provides 500 mg of acetyl L-carnitine HCl, a substantial amount. The whole-product price corresponds to about $0.30 per 500 mg of acetyl L-carnitine.
How this ingredient is rated
Active Ingredient Quality & Bioavailability94
The HCl form of acetyl L-carnitine is identified. A purity or manufacturing claim is recorded in the saved facts.
ALCAR vs. Standard Carnitine Form
Acetyl L-carnitine is identified, with no other carnitine form recorded.
Advanced Sourcing and Salt Specificity
The HCl form is identified. A purity or manufacturing claim is recorded in the saved facts.
Dose, Safety & Label Transparency100
The label states 500 mg of acetyl L-carnitine per serving, a substantial amount.
Clinical Dosage Efficacy
The serving provides 500 mg of acetyl L-carnitine, a substantial amount.
Label Transparency and Proprietary Blends
The specific amount of acetyl L-carnitine is stated as 500 mg per serving.
Value75
The whole-product price corresponds to about $0.30 per 500 mg of acetyl L-carnitine.
Price per 500mg Acetyl L-Carnitine
The whole-product price corresponds to about $0.30 per 500 mg of acetyl L-carnitine.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Acetyl-L-carnitine treatment in minimal hepatic encephalopathy.
- Long-term acetyl-L-carnitine treatment in Alzheimer's disease.
- Pharmaco-electroencephalographic and clinical effects of the cholinergic substance--acetyl-L-carnitine--in patients with organic brain syndrome.
- Acetyl-L-carnitine improves cognitive functions in severe hepatic encephalopathy: a randomized and controlled clinical trial.
- Acetyl-L-carnitine in the treatment of mildly demented elderly patients.
- A double-blind, parallel, multicenter comparison of L-acetylcarnitine with placebo on the attention deficit hyperactivity disorder in fragile X syndrome boys.
- Acetyl L-carnitine (ALC) treatment in elderly patients with fatigue.
- Oral acetyl-L-carnitine therapy reduces fatigue in overt hepatic encephalopathy: a randomized, double-blind, placebo-controlled study.
- The supplementation of acetyl-L-carnitine decreases fatigue and increases quality of life in patients with hepatitis C treated with pegylated interferon-α 2b plus ribavirin.
- Acetyl-L-carnitine reduces depression and improves quality of life in patients with minimal hepatic encephalopathy.
- A prospective study to evaluate the efficacy and safety of oral acetyl-L-carnitine for the treatment of chemotherapy-induced peripheral neuropathy.
- Metabolomic biomarkers for (R, S)-ketamine and (S)-ketamine in treatment-resistant depression and healthy controls: A systematic review.
- Acetyl-L-carnitine Slows the Progression from Prefrailty to Frailty in Older Subjects: A Randomized Interventional Clinical Trial.
- Acetyl-L-Carnitine Supplementation During HCV Therapy With Pegylated Interferon-α 2b Plus Ribavirin: Effect on Work Performance; A Randomized Clinical Trial.
- [Psycho-functional changes in attention and learning under the action of L-acetylcarnitine in 17 young subjects. A pilot study of its use in mental deterioration].
- Acetyl-L-carnitine (ALC) in attention-deficit/hyperactivity disorder: a multi-site, placebo-controlled pilot trial.
- Acetyl-L-carnitine for patients with hepatic encephalopathy.
- Low Bioavailability and High TMAO Production: Novel Insights Into Acetylcarnitine and Carnitine Metabolism.