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Quantity
1
Ultra-pure 100% whey isolate and hydrolysate blend delivers 25g protein per serving for optimal muscle recovery
No whey concentrate, fillers, creamers, or gums ensures a clean, easy-to-digest formula
Zero sugar and only 110 calories per serving support low-carb and calorie deficit diets
Contains naturally occurring BCAAs (6g per serving) to aid muscle recovery
Available in 11 unique flavors for variety and taste preference
Summarized by Shop
This flagship protein is made with super-pure 100% whey isolate, fast-acting whey hydrolysate, and virtually nothing else. Rule 1 completely omitted the use of whey concentrates as well as creamers, gums, amino spiking, and other fillers that dilute what you really came for – protein. The result is an industry leading Protein Purity Perce
Protein per serving
25 g
Protein purity (PPP)
87% (varies by flavor)
BCAAs per serving
6 g
Calories per serving
110
Sugar per serving
0 g
Servings per 5 lb tub
72-76
Form
Powder
Summarized by Shop
4.9
7 ratings
5
4
3
2
1
Its very good i think its better than choc fudge
Jesse · August 31, 2026
Rule 1 protein powder is my go to.
It's got heaps of flavour, doesn't clump and is easy to swallow leaving no residue in your mouth. It's good to add to cooking as well.
D
Deonne · June 23, 2026
Much cheaper on other websites than what I paid for it.