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Cheapest L-Threonine on iHerb

Ranked by real cost per 100 mg of L-Threonine — cheapest value first.

Prices updated Jul 25, 2026 · 25 products · Prices in USD

The priciest option here costs about 4.0× more per 100 mg of L-Threonine than the best-value pick Vitamatic. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 100 mg
1
Vitamatic, L-Threonine, 500 mg , 120 Vegetable Capsules
Vitamatic, L-Threonine, 500 mg , 120 Vegetable Capsules
Vitamatic
500 mg12014.990.025View on iHerb →
2
Rule One Proteins, Essential Amino 9, Cherry Limeade, 12.17 oz (345 g)
Rule One Proteins, Essential Amino 9, Cherry Limeade, 12.17 oz (345 g)
Rule One Proteins
850 mg3015.490.061View on iHerb →
3
EVLution Nutrition, EAA 7000, Unflavored, 8.4 oz (237 g)
EVLution Nutrition, EAA 7000, Unflavored, 8.4 oz (237 g)
EVLution Nutrition
650 mg3013.510.069View on iHerb →
4
ALLMAX, MUSCLEAA™ Xtreme, Pina Colada, 1.17 lb (532 g)
ALLMAX, MUSCLEAA™ Xtreme, Pina Colada, 1.17 lb (532 g)
ALLMAX
1,400 mg3029.600.071View on iHerb →
5
ALLMAX, MUSCLEAA™ Xtreme, Cherry Limeade, 1.17 lbs (532 g)
ALLMAX, MUSCLEAA™ Xtreme, Cherry Limeade, 1.17 lbs (532 g)
ALLMAX
1,400 mg3029.600.071View on iHerb →
6
Rule One Proteins, Essential Amino 9, Fruit Punch, 11.64 oz (330 g)
Rule One Proteins, Essential Amino 9, Fruit Punch, 11.64 oz (330 g)
Rule One Proteins
850 mg3020.650.081View on iHerb →
7
Rule One Proteins, Essential Amino 9, Blue Razz Lemonade, 12.17 oz (345 g)
Rule One Proteins, Essential Amino 9, Blue Razz Lemonade, 12.17 oz (345 g)
Rule One Proteins
850 mg3020.650.081View on iHerb →
8
Rule One Proteins, Essential Amino 9, Sour Watermelon, 12.17 oz (345 g)
Rule One Proteins, Essential Amino 9, Sour Watermelon, 12.17 oz (345 g)
Rule One Proteins
850 mg3020.650.081View on iHerb →
9
EVLution Nutrition, EAA 7000, Watermelon Splash, 9.9 oz (282 g)
EVLution Nutrition, EAA 7000, Watermelon Splash, 9.9 oz (282 g)
EVLution Nutrition
650 mg3016.130.083View on iHerb →
10
Force Factor, EAA Powder, Orange Mango, 10.4 oz (294 g)
Force Factor, EAA Powder, Orange Mango, 10.4 oz (294 g)
Force Factor
762 mg3019.990.087View on iHerb →
11
Force Factor, EAA Powder, Cherry Limeade, 10.4 oz (294 g)
Force Factor, EAA Powder, Cherry Limeade, 10.4 oz (294 g)
Force Factor
762 mg3019.990.087View on iHerb →
12
Nutricost, Performance, EAA, Unflavored, 8.9 oz (249 g)
Nutricost, Performance, EAA, Unflavored, 8.9 oz (249 g)
Nutricost
690 mg3018.950.092View on iHerb →
13
EVLution Nutrition, EAA 7000 + Electrolytes, Pink Lemonade, 13 oz (369 g)
EVLution Nutrition, EAA 7000 + Electrolytes, Pink Lemonade, 13 oz (369 g)
EVLution Nutrition
650 mg3017.980.092View on iHerb →
14
XTEND, EAA, Lemon Lime, 11.9 oz (336 g)
XTEND, EAA, Lemon Lime, 11.9 oz (336 g)
XTEND
750 mg4027.990.093View on iHerb →
15
XTEND, EAA, Blood Orange, 12 oz (340 g)
XTEND, EAA, Blood Orange, 12 oz (340 g)
XTEND
750 mg4027.990.093View on iHerb →
16
XTEND, EAA, Mango, 11.6 oz (328 g)
XTEND, EAA, Mango, 11.6 oz (328 g)
XTEND
750 mg4027.990.093View on iHerb →
17
EVLution Nutrition, EAA Energy, Watermelon Splash, 11.1 oz (315 g)
EVLution Nutrition, EAA Energy, Watermelon Splash, 11.1 oz (315 g)
EVLution Nutrition
650 mg3018.200.093View on iHerb →
18
fitcode, Essential Amino Acids, 90 Veggie Capsules
fitcode, Essential Amino Acids, 90 Veggie Capsules
fitcode
350 mg309.830.094View on iHerb →
19
Nutricost, Performance, EAA, Fruit Punch, 11.6 oz (330 g)
Nutricost, Performance, EAA, Fruit Punch, 11.6 oz (330 g)
Nutricost
690 mg3019.950.096View on iHerb →
20
Nutricost, Performance, EAA Powder, Peach Mango, 11.8 oz (330 g)
Nutricost, Performance, EAA Powder, Peach Mango, 11.8 oz (330 g)
Nutricost
690 mg3019.950.096View on iHerb →
21
Nutricost, Performance, EAA Powder, Passionfruit, Orange & Guava, 11.8 oz (330 g)
Nutricost, Performance, EAA Powder, Passionfruit, Orange & Guava, 11.8 oz (330 g)
Nutricost
690 mg3019.950.096View on iHerb →
22
Nutricost, Performance, EAA, Blue Raspberry, 11.8 oz (330 g)
Nutricost, Performance, EAA, Blue Raspberry, 11.8 oz (330 g)
Nutricost
690 mg3019.950.096View on iHerb →
23
VMI Sports, Aminogex, EAAs/BCAAs, Patriot Pop, 18.52 oz (525 g)
VMI Sports, Aminogex, EAAs/BCAAs, Patriot Pop, 18.52 oz (525 g)
VMI Sports
1,100 mg3031.990.097View on iHerb →
24
EVLution Nutrition, EAA2000, 90 Veggie Capsules
EVLution Nutrition, EAA2000, 90 Veggie Capsules
EVLution Nutrition
350 mg3010.500.100View on iHerb →
25
Primaforce, EAA, Rocket Pop, 11.7 oz (327 g)
Primaforce, EAA, Rocket Pop, 11.7 oz (327 g)
Primaforce
690 mg3020.930.101View on iHerb →

How we rank L-Threonine

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.