Best D-Aspartic Acid
The best d-aspartic acid we track, ranked by real cost-per-dose — not paid placements. Across 2 brands, 1 are third-party tested in a public registry.
Updated October 2026prices checked what’s changed
How much does D-Aspartic Acid cost?
D-Aspartic Acid costs a median $0.42 per serving — the cheapest of the 2 we can price per dose is $0.20 per serving. Prices checked October 2026.
3rd-party testedBulkSupplements D-Aspartic Acid Capsules - DAA Supplement for Men…
NSF Certified for Sport brand at $0.63 per serving.
How we rank
We rank by cost-per-dose — price ÷ servings, normalized to the daily dose — so bottle sizes and strengths compare fairly. Prices are scraped at publication and re-checked when the catalog refreshes (see the “Prices checked” stamp above). There is no paid placement and no kickback for ordering. Full methodology · Editorial standards.
When cheapest ≠ best value
The cheapest bottle isn’t automatically the best value: a low per-bottle price usually just means fewer servings or a smaller dose per serving. That is exactly what cost per dose normalises, which is why the ranking above is ordered by it rather than by sticker price. A bigger bottle isn’t automatically cheaper per dose either — this list already ranks by cost per dose, so a larger count only wins if it truly costs less per serving. Compare D-Aspartic Acid forms.
Our data on this: how much the big bottle saves per serving · the gummy tax · the form premium · the price spread.
Full ranking by cost per dose
Cost-per-serving normalizes price across bottle sizes — a 60-count and a 365-count compare fairly.
- See offer#1Best valueBarlowe's Herbal Elixirs D-Aspartic Acid Supplement…
capsule · 600mg · 60 servings · $11.95
$0.20per serving - See offer$0.63per serving3.2× #1
| # | Product | Form · dose | Tested | Servings | Price | $ / serving | Buy |
|---|---|---|---|---|---|---|---|
| 1 | Barlowe's Herbal Elixirs D-Aspartic Acid Supplement…Best value | capsule · 600mg | 60 | $11.95 | $0.20 | See offer | |
| 2 | BulkSupplements D-Aspartic Acid Capsules - DAA… | capsule · 3000mg | NSF Sport | 30 | $18.96 | $0.63 3.2× #1 | See offer |
See also: D-Aspartic Acid basics · all best-value rankings
D-Aspartic Acid brands we compare — which are third-party tested?
1 of the 2 brands ranked above appear in an independent certifier's own public registry. A certification confirms the label matches the contents — it says nothing about how well the supplement works, and an uncertified brand is not automatically worse.
Frequently asked
How much does D-Aspartic Acid cost?+
The cheapest d-aspartic acid we track is $0.20 per serving ($11.95 for 60 servings), against a typical $0.42 per serving across the 2 we can price per dose — about $5.98 a month at the cheapest. That's real cost per dose from live Amazon US prices as of October 2026, not the sticker price.
What is the best-value D-Aspartic Acid supplement?+
Barlowe's Herbal Elixirs D-Aspartic Acid Supplement | DAA | 600 mg Per Capsule… — $0.20 per serving ($11.95 for 60 servings), the lowest cost-per-dose d-aspartic acid in our Amazon US catalog as of October 2026.
How much does D-Aspartic Acid cost per day?+
The cheapest d-aspartic acid we track works out to $0.20 per serving, against a typical $0.42 per serving across the 2 we can price per dose. Retailers and review sites list a price and a serving size but rarely divide it out — this is what a day actually costs, as of October 2026.
What is the typical cost per dose for D-Aspartic Acid?+
About $0.42 per serving across the 2 d-aspartic acid products we can price per dose (combination products are left out — their single label dose belongs to whichever ingredient the product is built around) — the cheapest we track is $0.20 per serving, with most falling between $0.31 and $0.52.
What is the highest-quality D-Aspartic Acid supplement?+
Of the 2 d-aspartic acid brands ranked here, 1 hold a third-party certification we could verify in a public registry: BulkSupplements.com (NSF Certified for Sport). Certification means an independent lab confirmed the label matches the contents and screened for contaminants — it does not rate how well the supplement works. The cheapest certified option is BulkSupplements D-Aspartic Acid Capsules - DAA Supplement… at $0.63 per serving.
Which D-Aspartic Acid brands are third-party tested?+
BulkSupplements.com — NSF Certified for Sport. We only count a brand as tested when it appears in the certifier's own public registry (USP Verified, NSF Certified for Sport, Informed Choice), never on a claim printed on the label. The remaining 1 brands on this page have no certification we could verify.
Which D-Aspartic Acid is the top rated?+
We don't republish marketplace star ratings — they belong to the retailer, they move constantly, and a 4.6 average tells you nothing about what is in the capsule. The two things you can verify are what a dose costs and whether an independent lab checked the label. On both counts, BulkSupplements D-Aspartic Acid Capsules - DAA Supplement… stands out: NSF Certified for Sport certified at $0.63 per serving.
What dose of D-Aspartic Acid do these supplements come in?+
The d-aspartic acid products we track range from 600mg to 3000mg per serving. We rank by cost per serving so you can compare value across strengths — check the label for the dose that suits you.
Independent testing
1 of 2 tracked D-Aspartic Acid brands here are flagged as carrying independent third-party testing — a voluntary check of a product's identity, potency and contaminants by an outside lab. It's a quality signal, not a value or efficacy claim. Confirm any brand's current status on the official registries:
Testing status is self-reported by the brand or drawn from public certification and may change — always verify on the official registry before purchase.
References & sources
We link primary sources and paraphrase their findings — never copy their text, tables, or images. Cost-per-dose figures are our own first-party catalog data.