The best eaa (essential amino acids) we track, ranked by real cost-per-dose — not paid placements. Across 5 brands, 1 are third-party tested in a public registry.
Updated September 2026prices checked what’s changed
The cheapest eaa (essential amino acids) we track is $0.06 per gram. Prices checked September 2026.
Ranked across 8 products · prices checked Sep 24, 2026

NSF Certified for Sport brand at $0.11 per gram.
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.
The cheapest bottle isn’t automatically the best value: a low-absorption form (magnesium oxide is the classic example) can look cheap per milligram yet deliver less of what you actually absorb. Where forms differ, compare cost per absorbed or elemental unit, not the compound weight on the label. A bigger bottle isn’t automatically cheaper per dose either — this list already ranks by cost per gram of active, so a larger count only wins if it truly costs less per serving. Compare EAA (Essential Amino Acids) forms.
Our data on this: how much the big bottle saves per serving · the gummy tax · the form premium · the price spread.
Cost per gram of active normalizes price across scoop sizes — a 20 g and a 25 g serving compare fairly.
capsule · 1000mg · 180 servings · $18.96
NSF Sportcapsule · 1000mg · 180 servings · $21.96
NSF Sport| # | Product | Form · dose | Tested | Servings | Price | $ / g | Buy |
|---|---|---|---|---|---|---|---|
| 1 | Xtend EAA + BCAA Powder with 10g EAAsBest value | powder · 10g | 40 | $22.39 | $0.06 | See offer | |
| 2 | Xtend EAA + BCAA Powder with 10g EAAs | powder · 10g | 40 | $22.39 | $0.06 | See offer | |
| 3 | Nutricost EAA Capsules 1200mg | capsule · 1200mg | 240 | $18.95 | $0.07 1.2× #1 | See offer | |
| 4 | BulkSupplements.com Essential Amino Acids Capsules (EAA)… | capsule · 1000mg | NSF Sport | 180 | $18.96 | $0.11 1.9× #1 | See offer |
| 5 | Nutrex Research EAA Hydration | EAAs + BCAA Powder… | powder · 8g | 30 | $27.99 | $0.12 2.1× #1 | See offer | |
| 6 | Nutrex Research EAA Hydration | EAAs + BCAAs Powder… | powder · 8g | 30 | $27.99 | $0.12 2.1× #1 | See offer | |
| 7 | BulkSupplements.com Essential Amino Acids Capsules… | capsule · 1000mg | NSF Sport | 180 | $21.96 | $0.12 2.2× #1 | See offer |
| 8 | L-Trytophan 1000mg - SuperSmart | Potent & Essential… | tablet · 1000mg | 120 | $36.00 | $0.30 5.4× #1 | See offer |
See also: EAA (Essential Amino Acids) basics · all best-value rankings
1 of the 5 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.
The cheapest eaa (essential amino acids) we track is $0.06 per gram ($22.39 for 40 servings). That's real cost per dose from live Amazon US prices as of September 2026, not the sticker price.
Xtend EAA + BCAA Powder with 10g EAAs, Blood Orange, 40 Servings — $0.06 per gram ($22.39 for 40 servings), the lowest cost-per-dose eaa (essential amino acids) in our Amazon US catalog as of September 2026.
The cheapest eaa (essential amino acids) we track works out to $0.06 per gram. 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 September 2026.
About $0.12 per gram across 8 tracked eaa (essential amino acids) products, ranging from $0.06 per gram for the best value to $0.30 for premium options.
Not by sticker price. We rank eaa (essential amino acids) by cost per gram of eaa (essential amino acids), not per scoop — a bigger scoop at a higher price can still be cheaper per gram. Xtend EAA + BCAA Powder with 10g EAAs, Blood Orange, 40 Servings leads at $0.06 per gram as of September 2026.
Of the 5 eaa (essential amino acids) 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.com Essential Amino Acids Capsules (EAA)… at $0.11 per gram.
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 4 brands on this page have no certification we could verify.
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.com Essential Amino Acids Capsules (EAA)… stands out: NSF Certified for Sport certified at $0.11 per gram.
1 of 5 tracked EAA (Essential Amino Acids) 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.
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.