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Best Protein Deals at iHerb
Health-focused e-tailer with one of the widest supplement selections. Free US shipping on orders over $20. Loyalty Credits earned on every purchase.
15 cheapest here
7.0% avg savings
58 best value score
Free shipping $20+
Products Cheapest at iHerb
15 products
Nutricost
Whey Protein Concentrate
5 lb · Chocolate
Whey Concentrate
Check retailer for current price $35.99
Now Sports
Pea Protein
5 lb · Natural Unflavored
Plant ProteinSave $2.00
Check retailer for current price 5% OFF $37.99$39.99
MyProtein
Impact Whey Isolate
5.5 lb · Chocolate Smooth
Whey Isolate (WPI)
Check retailer for current price $62.99
Now Sports
Whey Protein Concentrate
2 lb · Rich Chocolate
Whey ConcentrateSave $1.00
Check retailer for current price 5% OFF $17.99$18.99
Dymatize ISO100 Hydrolyzed Whe
Dymatize
ISO100 Hydrolyzed Whey
5 lb · Fudge Brownie
Whey Isolate (WPI)Save $9.00
Check retailer for current price 12% OFF $65.99$74.99
Legion Athletics
Casein+ Micellar Casein
4 lb · Chocolate Peanut Butter
Casein Protein
Updated 2h ago $64.99
Dymatize ISO100 Hydrolyzed Whe
Dymatize
ISO100 Hydrolyzed Whey
5 lb · Orange Dreamsicle
Whey Isolate (WPI)Save $6.00
Check retailer for current price 8% OFF $65.99$71.99
Dymatize ISO100 Hydrolyzed Whe
Dymatize
ISO100 Hydrolyzed Whey
5 lb · Smooth Banana
Whey Isolate (WPI)Save $5.00
Check retailer for current price 7% OFF $66.99$71.99
Ascent
Native Fuel Whey
4 lb · Vanilla Bean
Whey Protein Blend
Updated 3h ago $81.99
Dymatize
ISO100 Hydrolyzed Whey
5 lb · Peanut Butter
Whey Isolate (WPI)
Check retailer for current price $76.99
Dymatize
ISO100 Hydrolyzed Whey
5 lb · Strawberry
Whey Isolate (WPI)
Check retailer for current price $75.99
Dymatize
ISO100 Hydrolyzed Whey
5 lb · Cinnamon Bun
Whey Isolate (WPI)
Check retailer for current price $77.99
Isopure
Zero Carb Whey Isolate
3 lb · Creamy Vanilla
Whey Isolate (WPI)Save $8.00
Check retailer for current price 15% OFF $44.99$52.99
Isopure Zero Carb Whey Isolate
Isopure
Zero Carb Whey Isolate
3 lb · Cookies and Cream
Whey Isolate (WPI)Save $7.00
Check retailer for current price 13% OFF $45.99$52.99
Isopure Zero Carb Whey Isolate
Isopure
Zero Carb Whey Isolate
3 lb · Strawberries & Cream
Whey Isolate (WPI)
Check retailer for current price $45.99
About iHerb Protein Prices
Why does iHerb sometimes have the cheapest protein?
iHerb buys in volume and passes savings to customers, especially on supplement-focused brands like Isopure, NOW Sports and Garden of Life. Low free-shipping threshold ($20) also lowers the effective cost.
Does iHerb ship fast?
Standard US delivery is 3–7 business days. iHerb does not offer Prime-style 1–2 day shipping, but their prices often offset the wait.
Are iHerb Loyalty Credits worth it?
Yes — iHerb credits ~10% of every purchase back as Loyalty Credits usable on your next order. That effectively reduces protein prices by 10% if you buy regularly.
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How we use iHerb prices
iHerb links on this page are affiliate links — we may earn a commission at no extra cost to you. Prices and rankings are sourced independently.