Acetyl-L-Carnitine, usually shortened to ALCAR, is a form of carnitine people commonly use for cognitive support, nerve health, and mood support. It is often marketed as the carnitine form that crosses the blood-brain barrier more readily, which is why it shows up in memory, focus, and healthy-aging supplement routines.
When you shop for ALCAR, the two things that change value the most are form and label wording. Bulk powder is often much cheaper than capsules, but it is less convenient to measure. At the same time, many labels alternate between listing Acetyl-L-Carnitine and Acetyl-L-Carnitine HCl, so two products that look similarly dosed on the front may not be presenting the amount the same way. The tables below use 1500 mg/day as a consistent comparison point so powders, capsules, tablets, gummies, and liquids can be compared on the same monthly-cost basis.
Prices as of June 3, 2026. Prices update daily; this page updates monthly. For current prices and full interactive filters, see the Acetyl-L-Carnitine (ALCAR) compare page.
| Rank | Brand | Product | Form | Cost per month | Price |
|---|---|---|---|---|---|
| 1 | Nutricost | Nutricost Acetyl L-Carnitine (ALCAR) 500 Grams - 1000mg Per… | Powder | $3.60 | $39.95 |
| 2 | BulkSupplements | BulkSupplements.com Acetyl L-Carnitine Powder - as ALCAR HC… | Powder | $3.87 | $42.97 |
| 3 | NOW Foods | NOW Foods Supplements, ALC (Acetyl-L-Carnitine) Powder, Bra… | Powder | $9.16 | $17.40 |
| 4 | Vital Nutrients | Vital Nutrients Acetyl L-Carnitine Powder | Brain, Memory,… | Powder | $36.81 | $80.99 |
| Rank | Brand | Product | Form | Cost per month | Price |
|---|---|---|---|---|---|
| 1 | Piping Rock | Piping Rock Acetyl L - Carnitine HCL | 2250mg | 120 Capsu… | Capsules | $5.00 | $9.99 |
| 2 | Heivy | Heivy Pure Acetyl L-Carnitine 500mg | 180 Capsules, 180 Se… | Capsules | $6.40 | $15.99 |
| 3 | BulkSupplements | BulkSupplements.com Acetyl L-Carnitine Capsules - ALCAR HCl… | Capsules | $6.49 | $25.97 |
| 4 | Healthfare | Healthfare L Carnitine Capsules 1500mg | High Potency (ALC… | Capsules | $7.00 | $13.99 |
| 5 | Nutricost | Nutricost Acetyl L-Carnitine (ALCAR) 500mg, 180 Capsules, 1… | Capsules | $7.58 | $18.95 |
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1) Decide whether you want the lowest cost or the easiest routine. ALCAR is one of those supplements where bulk powder can be dramatically cheaper than capsules. If your main goal is value, powder usually wins. If you want something easier to take every day, capsules are simpler and more portable, but they usually cost more for the same daily amount.
2) Check whether the label is naming ALCAR itself or the heavier HCl form. This is the most important label-reading step in this market. Some products list a line like "Acetyl-L-Carnitine 1,000 mg from 1,205 mg Acetyl-L-Carnitine HCl," which clearly tells you how much actual ALCAR you are getting. Others simply list "Acetyl-L-Carnitine HCl 1500 mg" or "Acetyl-L-Carnitine (from 625 mg Acetyl-L-Carnitine HCl)." Those are not all saying the same thing. If you are comparing products closely, favor labels that make the relationship clear instead of assuming every HCl number is directly comparable.
3) Do the serving math from Supplement Facts, not the bottle front. ALCAR commonly comes in 500 mg capsules, two-capsule servings, or larger total-serving claims like 1500 mg per serving. That means the daily routine can vary a lot even among products that look similar at first glance. Check how many capsules, gummies, scoops, or tablespoons you actually need to reach your target intake and whether that is a routine you will realistically follow.
4) Powder is cheap, but measurement can be less precise. Several ALCAR powders are labeled around 1.5 g per serving, often with spoon guidance like "about 1/2 tsp." That can work well if you already use a scoop or scale, but it is less foolproof than capsules. If you want the savings from powder, it is worth preferring labels that give both gram weight and household measure clearly, and it is even better if the brand explicitly recommends accurate measuring.
5) Be careful with liquids, gummies, and specialty formats. These forms can make ALCAR easier to take, but they often cost much more per month than plain capsules or powder. They can still make sense if you dislike swallowing capsules or want a more convenient format, but they are usually convenience purchases rather than value purchases.
6) Prioritize plain standalone ALCAR if your goal is honest comparison. ALCAR is often sold on its own, which makes this supplement easier to compare than many nootropic blends. That said, the market still includes products marketed around memory, focus, or brain support language. If the label adds other active ingredients, the price comparison becomes less straightforward and the product is no longer a simple ALCAR buy.
7) Use brand and testing claims only after the dose math makes sense. You will see claims like third-party tested, non-GMO, vegetarian capsules, or general quality seals. Those can help break a tie between two fairly similar products, but they should come after the bigger questions: what form you want, how many servings you actually get, and whether the label is transparent about ALCAR versus ALCAR HCl.
ALCAR labels are not necessarily misleading, but they are often inconsistent in how they present the active amount. One brand may highlight the amount of Acetyl-L-Carnitine itself, while another highlights the weight of Acetyl-L-Carnitine HCl, the salt form used in the product. That does not automatically make one product bad, but it does mean you should slow down when comparing products that appear to offer the same milligrams. The clearest labels tell you both numbers and make the relationship obvious.
Evidence for Acetyl-L-Carnitine is moderate. It has human evidence for cognitive support in older adults, diabetic neuropathy, and some mood-related uses, but the case is much weaker for younger, cognitively healthy adults using it as a general focus supplement. The 1500 mg/day benchmark here is for price comparison, not a claim that everyone should take that exact amount; common supplemental use often falls around 1.5-2.5 g/day depending on the goal and the product format.
ALCAR is generally well tolerated, but it can cause side effects such as nausea, restlessness, or stomach upset in some people. Because carnitine-related supplements can interact with medical conditions or medications, especially in people managing neurological or metabolic issues, it is reasonable to check with a clinician if you are using it for a specific health concern rather than general supplement experimentation.