Last updated at 11/05/2026 09:55:47
RULE 1 PROTEIN ISOLATE - 900g / RED VELVET CAKE
Delivery $10
| Average Quantity | Per Serve (28.9g) |
| Energy | 439kJ (105 Cal) |
| Protein | 25g |
| Fat - Total | 0g |
| Carbohydrate - Total | 1g |
RULE 1 PROTEIN ISOLATE - 900g / RED VELVET CAKE
Delivery $10
| Average Quantity | Per Serve (28.9g) |
| Energy | 439kJ (105 Cal) |
| Protein | 25g |
| Fat - Total | 0g |
| Carbohydrate - Total | 1g |
Rule 1's flagship protein is made with super-pure 100% whey isolate, fast-acting whey hydrolysate, and virtually nothing else. It is completely omitted with 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 Percentage (PPP) of up to 87%. R1 Protein is protein with a capital-P.
Rule 1's flagship protein is made with super-pure 100% whey isolate, fast-acting whey hydrolysate, and virtually nothing else. It is completely omitted with 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 Percentage (PPP) of up to 87%. R1 Protein is protein with a capital-P.
in 1 offers
The lowest price for R1 WPI Protein 2.5lb Red Velvet by Rule 1 right now is $119.95 at Supp Society.
The all-time low was $89.90 on 6 Apr 2023 — today's price is 33% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 11 May 2026.
R1 WPI Protein 2.5lb Red Velvet by Rule 1
Rule 1's flagship protein is made with super-pure 100% whey isolate, fast-acting whey hydrolysate, and virtually nothing else. It is completely omitted with 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 Percentage (PPP) of up to 87%. R1 Protein is protein with a capital-P.
Rule 1's flagship protein is made with super-pure 100% whey isolate, fast-acting whey hydrolysate, and virtually nothing else. It is completely omitted with 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 Percentage (PPP) of up to 87%. R1 Protein is protein with a capital-P.
