Premier Protein Shake 18‑Pack Drops to $23.99 at Costco (Was $31.99)

Save $8 on the Premier Protein Shake 18‑pack at Costco through March 29. It’s currently $23.99, down from $31.99. The last time it went on sale in August 2025, the discount was only $6, so this is a better markdown than usual. If this is something you buy often, now's a good chance to stock up while the price is lower.

In-Store Deal at Costco

Premier Protein Shake 18-Pack

$23.99$31.9925% off

What to buy

1 Premier Protein Shakes, 11 oz 18 ct, $31.99

Buy 1, save $8, limit 4

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Exp 03/30/26

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A Costco membership is required to shop in stores. If you're not a member, now's a good time to sign up for a Costco membership and start saving.

There's a faster way to save. It's in our app. Download the KCL app for free now to browse more of our favorite deals at Costco.

Want more deals? See what else you can save on in this month's Costco Coupon Book. Follow KCL on Telegram to get updates on deals before they’re gone.