Best BCAAs Supplements 2026: Cost per Effective Dose
Top pick for BCAAs: BulkSupplements BCAA 2:1:1 Powder (500 g) — 1g BCAA per 1 scoop (1 g), None stated, $0.05/day. Our best-value pick.
All BCAAs Supplements Compared
| Product | Brand | Dose / Serving | Cost / Day | Certification (as labelled) | Pick | Buy |
|---|---|---|---|---|---|---|
| BulkSupplements BCAA 2:1:1 Powder (500 g) | BulkSupplements | 1g BCAA / 1 scoop (1 g) | $0.05 | None stated | Best Value | Buy |
| Nutricost BCAA 1000 mg Capsules (500 ct) | Nutricost | 1,000mg BCAA / 2 capsules (1,000 mg) | $0.09 | None stated | Buy | |
| Optimum Nutrition Mega-Size BCAA 1000 Caps (400 ct) | Optimum Nutrition | 1,000mg BCAA / 2 capsules (1,000 mg) | $0.19 | None stated | Buy | |
| Optimum Nutrition Instantized BCAA Powder (5,000 mg/serving, Unflavored) | Optimum Nutrition | 5g BCAA / 1 scoop (5,000 mg) | $0.67 | None stated | Buy | |
| XTEND Original BCAA Powder, Watermelon Explosion (7,000 mg/serving) | XTEND | 7g BCAA / 1 scoop (7,000 mg) | $0.87 | None stated | Buy |
Registry check · BCAAs
Does anyone independently verify BCAAs supplements?
1 of the 5 BCAAs products on this page is confirmed in NSF/ANSI 173: XTEND Original BCAA Powder, Watermelon Explosion (7,000 mg/serving). XTEND Original BCAA Powder, Watermelon Explosion (7,000 mg/serving) does not show the mark on the listing, so the table’s certification column, which repeats the listing, does not show it either. For the others, the listing may name a certification, but we did not find it in a public registry — that is not evidence against them, only an absence of independent confirmation.
Certification is not a dosing guarantee. Across the whole catalogue, certified products reach the clinically studied dose 57% of the time and uncertified ones 71% — a gap too small to mean anything (Fisher p = 0.185). Read the BCAAs dose column either way.
The 5 products on this page checked against all 5,317 US NSF, USP and Informed Sport listings, 2026-08-25. Full method and limitations.
What BCAAs labels show
Priced per day, these BCAAs products run $0.05 to $0.87 — a 17× gap between the cheapest and dearest BCAAs here, across 4 brands.
Our Picks
Best Value: BulkSupplements BCAA 2:1:1 Powder (500 g)
1g BCAA per 1 scoop (1 g). None stated. $0.05/day. 500 servings per container at $23.97.
The shelf · BCAAs
Pack sizes differ 16.7×, so the shelf price tells you very little
XTEND Original BCAA Powder, Watermelon Explosion (7,000 mg/serving) holds 30 servings and BulkSupplements BCAA 2:1:1 Powder (500 g) holds 500: the same shelf price buys 16.7× more of one than the other, which is why all 5 rows above are priced per day. On that basis BulkSupplements BCAA 2:1:1 Powder (500 g) is the cheapest at $0.05 and XTEND Original BCAA Powder, Watermelon Explosion (7,000 mg/serving) the dearest at $0.87.
Method: the 5 BCAAs products above, compared on label facts, serving size, servings per container, form, price. Not a dosing recommendation.
How these 5 BCAAs products were ranked
1 of these 5 is confirmed in a certifier's registry — the only BCAAs row where the claim is independently backed — and the rest are ranked on cost per day at the labelled serving. Commission does not enter it: the rate is the same whichever BCAAs you buy. Full methodology.