What is the difference between NOW Foods Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules and Life Extension Acetyl-L-Carnitine Arginate, 90 Capsules?

NOW Foods Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules contains 1 active ingredients, while Life Extension Acetyl-L-Carnitine Arginate, 90 Capsules contains 2 active ingredients. Compare serving sizes, ingredient amounts, and daily values on this page.

Which supplement has more ingredients: Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules or Acetyl-L-Carnitine Arginate, 90 Capsules?

Life Extension Acetyl-L-Carnitine Arginate, 90 Capsules has more active ingredients (2) compared to NOW Foods Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules (1).

NOW Foods Acetyl-L-Carnitine vs Life Extension Acetyl-L-Carnitine Arginate

Side-by-side supplement facts comparison

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NOW Foods

Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules

4.8(21,712)·

Acetyl-L-Carnitine (ALC) is a modified amino acid that supports cellular energy production by assisting in the transport of fat into the mitochondria where it is converted into ATP (cellular fuel). ALC is a highly bioavailable form of carnitine that can cross the blood-brain barrier, where it helps to neutralize free radicals, supports mitochondrial function and helps to maintain normal neurotransmitter activity. Clinical studies suggest that ALC helps to maintain optimal neurological health.

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Life Extension

Acetyl-L-Carnitine Arginate, 90 Capsules

4.8(469)·

Acetyl-L-Carnitine Arginate is an advanced carnitine supplement that promotes youthful cellular energy metabolism and supports brain and nerve health. What Is Acetyl-L-Carnitine Arginate? With the discovery of acetyl-L-carnitine arginate, carnitine’s benefits have now been greatly augmented. Acetyl-L-carnitine, an amino acid derivative, promotes youthful cellular energy metabolism and supports mood and nervous system well-being. But levels of the compound it is made from, L-carnitine, decline with age. Acetyl-L-carnitine supports mitochondrial energy, helping to support whole-body energy.

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At a Glance

Verdict

Acetyl-L-Carnitine offers a higher 1000 mg dose in a straightforward single-ingredient capsule, while Acetyl-L-Carnitine Arginate provides a lower total dose but includes an arginate form for a different amino acid profile. The trade-off is higher potency vs. a tailored combination.

Who each is for

NOW Foods Acetyl-L-Carnitine

You want a high dose of acetyl-L-carnitine per serving
Acetyl-L-Carnitine provides 1000 mg pure acetyl-L-carnitine from HCl
You prefer a simple single-ingredient supplement
Acetyl-L-Carnitine is in vegetable capsules

Life Extension Acetyl-L-Carnitine Arginate

You want a blend with acetyl-L-carnitine arginate for added arginine
Acetyl-L-Carnitine Arginate offers a lower 620 mg total dose
You prefer a smaller serving size or lower potency
Acetyl-L-Carnitine Arginate comes from Life Extension

What you get from each

At a Glance

Processing analysis…

Ingredient Comparison

Total mg Per Serving

Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules

Acetyl-L-Carnitine Arginate, 90 Capsules

—

50 servings per container

0 servings per container

0 shared ingredients

1 only in Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules

2 only in Acetyl-L-Carnitine Arginate, 90 Capsules

Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules

NOW Foods · 2 Veg Capsules

Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules

NOW Foods · 2 Veg Capsules

Ingredient	Amount	DV
Acetyl-L-Carnitine (from Acetyl-L-Carnitine HCl)	1 g (1,000 mg)	†

† Daily Value not established

Acetyl-L-Carnitine Arginate, 90 Capsules

Life Extension · 1 Capsule

Acetyl-L-Carnitine Arginate, 90 Capsules

Life Extension · 1 Capsule

Ingredient	Amount	DV
Acetyl-L-Carnitine Arginate Dihydrochloride	320 mg	†
Acetyl-L-Carnitine Hydrochloride	300 mg	†

† Daily Value not established

Other Ingredients Analysis

Analysis of inactive ingredients for dietary restrictions, allergens, and artificial additives.

Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules

NOW Foods

100

Excellent

Other Ingredients

Hypromellose (cellulose capsule), rice flour, stearic acid (vegetable source) and silicon dioxide.

Warnings

3 filler ingredients

Positives

Appears vegan-friendlyNo artificial colors or flavors detectedNo common allergens

Acetyl-L-Carnitine Arginate, 90 Capsules

Life Extension

100

Excellent

Other Ingredients

Vegetable cellulose (capsule), microcrystalline cellulose, vegetable stearate, silica.

Positives

Appears vegan-friendlyNo artificial colors or flavors detectedNo common allergens

How Clean Score is Calculated

Each positive: +5 points

Each warning or concern: −10 points

Serving Information

Detail	Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules	Acetyl-L-Carnitine Arginate, 90 Capsules
Serving Size	2 Veg Capsules	1 Capsule
Servings Per Container	50	—
Package Quantity	100 count	90 count

Certifications & Claims

Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules

Non-GMOVeganVegetarianKoshercGMP Compliant

Acetyl-L-Carnitine Arginate, 90 Capsules

Gluten-FreeNon-GMO

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Compare Acetyl L-Carnitine Supplements: Ingredients & Supplement Facts

NOW Foods Acetyl-L-Carnitine vs Life Extension Acetyl-L-Carnitine Arginate

Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules

Acetyl-L-Carnitine Arginate, 90 Capsules

At a Glance

Verdict

Who each is for

NOW Foods Acetyl-L-Carnitine

Life Extension Acetyl-L-Carnitine Arginate

What you get from each

At a Glance

Ingredient Comparison

Total mg Per Serving

Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules

Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules

Acetyl-L-Carnitine Arginate, 90 Capsules

Acetyl-L-Carnitine Arginate, 90 Capsules

Other Ingredients Analysis

Acetyl-L-Carnitine, 500 mg, 100 Veg Capsules

Acetyl-L-Carnitine Arginate, 90 Capsules

Serving Information

Certifications & Claims

Browse more comparisons in

At a Glance

Verdict

Who each is for

NOW Foods Acetyl-L-Carnitine

Life Extension Acetyl-L-Carnitine Arginate

What you get from each

NOW Foods Acetyl-L-Carnitine

Life Extension Acetyl-L-Carnitine Arginate

Key Differences