3 forms with distinct clinical use · L-tartrate (LCLT) muscle · ALCAR brain · PLC vascular-specific.
Carnipure®, ChromaDex pure tartrate
Best for
Ideal use: endurance + strength athletes, gym recovery, adult sarcopenia, hepatic steatosis.
Advantages
Most studied form in muscle (Wall 2011). Stable, economical, oral bioavailability ~15-20% (better with CHO). Canon single-RCT for athletes.
Disadvantages
Does NOT cross BBB significantly · not useful for cognition. Requires CHO co-ingestion for real muscle uptake.
Acetylated · ALCAR Carnipure®
Best for
Ideal use: MCI, mild Alzheimer, depression, brain fog, ADHD, peripheral neuropathy.
Advantages
Crosses BBB efficiently · acetyl donor for acetylcholine + mitochondrial acetyl-CoA. Wang 2024 cognition RCT + Veronese 2024 depression.
Disadvantages
More expensive than LCLT (~30-40% premium). Mildly stimulating · do not take pre-sleep.
Specialized peripheral vascular
Best for
Ideal use (limited): intermittent claudication, diabetic endothelial dysfunction under cardiology.
Advantages
Conjugated with propionate · better endothelial uptake. Evidence in intermittent claudication and diabetic endothelial dysfunction.
Disadvantages
Expensive and specific · limited availability in Spain. Only niche peripheral vascular clinical use.
Ideal use: endurance + strength athletes, gym recovery, adult sarcopenia, hepatic steatosis.
Ideal use: MCI, mild Alzheimer, depression, brain fog, ADHD, peripheral neuropathy.
Ideal use (limited): intermittent claudication, diabetic endothelial dysfunction under cardiology.
3 forms with distinct clinical use · L-tartrate (LCLT) muscle · ALCAR brain · PLC vascular-specific.