Amino acids
L-carnosine
Two amino acids joined together, found mostly in muscle. It buffers the acid that builds up in muscles during hard exercise.
28 products from US online stores, sorted by what 500 mg of carnosine costs – not by the price per pack.
9.9¢Lowest cost
per 500 mg carnosine
- Prices checked Nov 1, 2026, US
- No paid placements
What does 500 mg mean?
- carnosine per serving in most of the products we checked
- 500 mgcarnosine per serving in most of the products we checked
- 500 mg is about one serving: half of the 28 products we checked have up to 500 mg per serving, the other half more.
- There’s no official daily amount for carnosine.
We compare by 500 mg only so products line up – it’s not a recommendation. Not medical advice.
Where products miss quality points
How the 28 products score
- Very good 90+: 0
- Good 75+: 28
- Fair 60+: 0
- Low under 60: 0
- have no seal from an independent testing program
- 100%have no seal from an independent testing program10 of 30 testing points for GMP, 15 for the 6 whose label says “third-party tested”
The full 30 testing points need an independent test. Every supplement sold in the US is made under the FDA’s GMP rules – the maker checks its own products, which gives 10 points. A seal from a testing program like NSF, USP or Informed Choice means a lab outside the company checks that what’s inside matches the label. Most brands don’t take part. That doesn’t make a product bad – without a seal, a clean product still gets up to 80.
We find seals on the label and in NSF’s public lists. USP and Informed Choice don’t let us search their lists automatically, so a seal that’s only in their lists can be missing. How the score works
Pack size
Compare packs of a similar size.
All sizes in one list can affect the results – big packs usually cost less per 500 mg. Pick a size above to compare packs that are alike.
28 products · cheapest per 500 mg carnosine first
- Rank 1
BulkSupplements
L-Carnosine Powder
Powder
80Good qualityCountry not stated9.9¢per 500 mg
Lowest
- Pack
- $198.972,000 servings
- Carnosine per serving
- 500 mg
- Pack lasts
- 2,000 daysif you take 500 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 2
BulkSupplements
L-Carnosine Powder
Powder
80Good qualityCountry not stated$0.11per 500 mg
11% more
- Pack
- $109.971,000 servings
- Carnosine per serving
- 500 mg
- Pack lasts
- 1,000 daysif you take 500 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 3
BulkSupplements
L-Carnosine Powder
Powder
80Good qualityCountry not stated$0.13per 500 mg
29% more
- Pack
- $63.97500 servings
- Carnosine per serving
- 500 mg
- Pack lasts
- 500 daysif you take 500 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 4
Nutricost
L-Carnosine, Unflavored
Powder
85Good qualityMade in USA$0.25per 500 mg
153% more
- Pack
- $50.40100 g (3.5 oz)200 servings
- Carnosine per serving
- 500 mgin 0.5 g
- Pack lasts
- 200 daysif you take 500 mg a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 5
Nutricost
L-Carnosine Powder
Powder
85Good qualityMade in USA$0.25per 500 mg
154% more
- Pack
- $49.9799 g (3.5 oz)198 servings
- Carnosine per serving
- 500 mgin 0.5 g
- Pack lasts
- 198 daysif you take 500 mg a day
nutricost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 6
BulkSupplements
L-Carnosine Powder
Powder
80Good qualityCountry not stated$0.27per 500 mg
171% more
- Pack
- $26.97100 servings
- Carnosine per serving
- 500 mg
- Pack lasts
- 100 daysif you take 500 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 7
Best Naturals
L-Carnosine 500 mg
Capsules
80Good qualityMade in USA$0.30per 500 mg
201% more
- Pack
- $29.99100 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 100 daysif you take 1 capsule (500 mg) a day
shopbestnaturals.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 8
Nutricost
L-Carnosine, Unflavored
Powder
85Good qualityMade in USA$0.31per 500 mg
209% more
- Pack
- $30.7250 g (1.8 oz)100 servings
- Carnosine per serving
- 500 mgin 0.5 g
- Pack lasts
- 100 daysif you take 500 mg a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 9
Nutricost
L-Carnosine, 500 mg
Capsules
85Good qualityMade in USA$0.31per 500 mg
217% more
- Pack
- $37.80120 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 10
Vitacost
L-Carnosine, 500 mg
Capsules
80Good qualityCountry not stated$0.32per 500 mg
224% more
- Pack
- $58.07180 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 180 daysif you take 1 capsule (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 11
Nutricost
L-Carnosine Powder
Powder
85Good qualityMade in USA$0.32per 500 mg
225% more
- Pack
- $32.9751 g (1.8 oz)102 servings
- Carnosine per serving
- 500 mgin 0.5 g
- Pack lasts
- 102 daysif you take 500 mg a day
nutricost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 12
Nutricost
L-Carnosine Capsules
Capsules
80Good qualityMade in USA$0.32per 500 mg
226% more
- Pack
- $38.97120 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 120 daysif you take 1 capsule (500 mg) a day
nutricost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 13
Vitacost
L-Carnosine, 500 mg
Capsules
80Good qualityCountry not stated$0.36per 500 mg
265% more
- Pack
- $32.6690 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 90 daysif you take 1 capsule (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 14
NOW Foods
L-Carnosine, 500 mg
Capsules
80Good qualityCountry not stated$0.37per 500 mg
269% more
- Pack
- $36.73100 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 100 daysif you take 1 capsule (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 15
Swanson Vitamins
L-Carnosine, 500 mg
Capsules
80Good qualityCountry not stated$0.38per 500 mg
283% more
- Pack
- $22.8960 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 16
Swanson Vitamins
L-Carnosine
Capsules
80Good qualityCountry not stated$0.38per 500 mg
283% more
- Pack
- $22.8960 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (500 mg) a day
swansonvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 17
NOW Foods
L-Carnosine, 500 mg
Capsules
80Good qualityPacked in USA$0.39per 500 mg
294% more
- Pack
- $19.5850 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 50 daysif you take 1 capsule (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 18
Advance Physician Formulas
L-Carnosine, 500 mg
Capsules
80Good qualityCountry not stated$0.45per 500 mg
353% more
- Pack
- $13.5130 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 30 daysif you take 1 capsule (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 19
BulkSupplements
L-Carnosine Powder
Powder
80Good qualityCountry not stated$0.46per 500 mg
362% more
- Pack
- $22.9750 servings
- Carnosine per serving
- 500 mg
- Pack lasts
- 50 daysif you take 500 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 20
Advance Physician Formulas
L-Carnosine 500 mg
Capsules
85Good qualityCountry not stated$0.46per 500 mg
364% more
- Pack
- $13.8530 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 30 daysif you take 1 capsule (500 mg) a day
physicianformulas.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 21
Life Extension
Carnosine, 500 mg
Capsules
80Good qualityCountry not stated$0.48per 500 mg
377% more
- Pack
- $28.5060 capsules
- Carnosine per serving
- 500 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 22
Source Naturals
L-Carnosine, 500 mg
Tablets
80Good qualityCountry not stated$0.48per 500 mg
381% more
- Pack
- $28.6960 tablets
- Carnosine per serving
- 500 mgin 1 tablet
- Pack lasts
- 60 daysif you take 1 tablet (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 23
BulkSupplements
N-Acetyl L-Carnosine (NALC) Powder
Powder
80Good qualityCountry not stated$0.76per 500 mg
666% more
- Pack
- $380.97500 servings
- Carnosine per serving
- 500 mg
- Pack lasts
- 500 daysif you take 500 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 24
KAL
L-Carnosine, 500 mg
Tablets
80Good qualityCountry not stated$0.87per 500 mg
776% more
- Pack
- $26.1530 tablets
- Carnosine per serving
- 500 mgin 1 tablet
- Pack lasts
- 30 daysif you take 1 tablet (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 25
BulkSupplements
N-Acetyl L-Carnosine (NALC) Powder
Powder
80Good qualityCountry not stated$0.89per 500 mg
794% more
- Pack
- $88.97100 servings
- Carnosine per serving
- 500 mg
- Pack lasts
- 100 daysif you take 500 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 26
BulkSupplements
N-Acetyl L-Carnosine (NALC) Powder
Powder
80Good qualityCountry not stated$1.06per 500 mg
965% more
- Pack
- $52.9750 servings
- Carnosine per serving
- 500 mg
- Pack lasts
- 50 daysif you take 500 mg a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 27
Kirkman Labs
L-Carnosine 200 mg - Hypoallergenic
Capsules
80Good qualityCountry not stated$1.24per 500 mg
1,143% more
- Pack
- $44.5090 capsules
- Carnosine per serving
- 200 mgin 1 capsule
- Pack lasts
- 30 daysif you take 3 capsules (600 mg) a day
kirkmangroup.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 28
Kirkman Labs
L-Carnosine, 200 mg
Capsules
80Good qualityCountry not stated$1.27per 500 mg
1,180% more
- Pack
- $45.8490 capsules
- Carnosine per serving
- 200 mgin 1 capsule
- Pack lasts
- 30 daysif you take 3 capsules (600 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
Good to know
- Fact
- 1,180%more per 500 mg for the most expensive product than for the cheapest.
- Fact
- 381%more per 500 mg for the cheapest tablets than for the cheapest powder.
How we checked: one-time price for each size in the store’s US online shop, before sales tax and shipping, without subscriptions or coupons. Prices change often, so check the store before you buy. More on how we check
The amount we compare by only makes products comparable – it is not a dosage recommendation. Not medical advice.
How we calculate
Cost per dose = price ÷ (servings × amount per serving) × comparison amount. Example: $119.99 for 74 servings with 24 g of protein each is 1,776 g of protein. $119.99 ÷ 1,776 g × 30 g = $2.03 per 30 g of protein.
Found a mistake or a product we should add? Email us