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See the offer Whey Protein cost per dose
Currently from $0.956 per serving across our tracked stores. Same molecule, dramatically different per-dose pricing — sorted bottom-up.
Prices checked Jun 25, 2026
See also: best Whey Protein deals · Whey Protein basics
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💪 Protein Powder
Sports Research Whey Protein Isolate Powder 25g per Serving…
Cost per serving
$1.05
$62.96last seen · confirm on Amazon
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💪 Protein Powder
Six Star Whey Protein Powder Plus - 30g Protein
Cost per serving
$1.18
$21.21last seen · confirm on Amazon
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💪 Protein Powder
Dymatize Elite 100% Whey Protein Powder
Cost per serving
$1.21
$76.18last seen · confirm on Amazon
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🦠 Probiotics 50B
Garden of Life SPORT Whey Protein Powder Chocolate
Cost per serving
$1.54
$30.87last seen · confirm on Amazon
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💪 Protein Powder
Dymatize ISO100 Whey Protein Powder Isolate
Cost per serving
$1.56
$108.99last seen · confirm on Amazon
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💪 Protein Powder
Isopure Zero Carb 100% Pure Whey Isolate Protein Powder
Cost per serving
$1.63
$76.49last seen · confirm on Amazon
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💪 Protein Powder
Chocolate Whey Protein Isolate Powder
Cost per serving
$1.67
$39.96last seen · confirm on Amazon
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💪 Protein Powder
Isopure Zero Carb 100% Pure Whey Isolate Protein Powder
Cost per serving
$1.74
$76.49last seen · confirm on Amazon
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See the offer Frequently asked
What is the cheapest Whey Protein per dose?+
C4 Whey Protein Powder — $0.96 per serving ($63.07 for 66 servings), the lowest cost-per-dose whey protein in our Amazon US catalog as of June 2026.
What is the typical cost per dose for Whey Protein?+
About $1.74 per serving across 17 tracked whey protein products, ranging from $1.54 for the best deals to $2.04 for premium options.
Is the cheapest Whey Protein the best one to buy?+
Not always. The cheapest is sometimes cheaper because of the form — magnesium oxide costs less than glycinate per gram but absorbs at a fraction of the rate. Weigh cost-per-dose against form bioavailability and third-party testing, not price alone.