Rule 1 R1 Protein 2 LB / Vanilla Butter Cake
Industry leading protein with zero sacrifices in taste! Our flagship protein is made with super-pure 100% whey isolate, fast-acting whey hydrolysate, and virtually nothing else.
Industry leading protein with zero sacrifices in taste! Our flagship protein is made with super-pure 100% whey isolate, fast-acting whey hydrolysate, and virtually nothing else.
Industry leading protein with zero sacrifices in taste! Our flagship protein is made with super-pure 100% whey isolate, fast-acting whey hydrolysate, and virtually nothing else.
Industry leading protein with zero sacrifices in taste! Our flagship protein is made with super-pure 100% whey isolate, fast-acting whey hydrolysate, and virtually nothing else.
in 14 offers
The lowest price for Rule 1 R1 Protein 2 LB / Vanilla Butter Cake right now is $79.95 at Kogan.com, compared across 14 retailers.
The all-time low was $36.99 on 25 May 2026 — today's price is 116% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 3 Aug 2026.
Last updated at 03/08/2026 08:21:08
Rule 1 100% Whey Protein Isolate and Hydrolysate Pre-Workout Protein Powder 2.01 lb, Chocolate Peanut Butter (28 Servings)
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Rule One R1 Whey Protein Isolate Powder Strawberry Banana 29 Serves *Clearance (Best Before 11/12/25)
Delivery $14.95
Rule 1 Protein Isolate 2LB / Choc Fudge
Delivery $9.50
R1 Protein WPI, Vanilla Buttercake / 2LB
Delivery between 5–17 Aug $10
Rule 1 R1 Protein Whey Isolate - 900g / 30 Serves Salted Caramel
Delivery between Wed – Thu $9.95
R1 Protein - Vanilla Creme / 900g
Delivery $17
Rule 1 Proteins R1 WPI Protein 2lb / Milk Chocolate
Delivery $9.95
Rule 1 R1 Protein 2lb Milk Chocolate - Elite Supps Exclusive WPI Blend, 30 Serves
Delivery $10
R1 Protein WPI by Rule 1 Proteins, 2lbs / Milk Chocolate
Delivery between 7–14 Aug $9.95
R1 Protein Whey Isolate by Rule 1 - 2lb / Milk Chocolate | Supplement Mart
Delivery between 6–13 Aug $15
| Calories | 110 |
| Protein | 25 g |
| Fat, total | 0 g |
| Carbohydrates | 1 g |
| Sodium | 40 mg |
Rule 1 100% Whey Protein Isolate and Hydrolysate Pre-Workout Protein Powder 2.01 lb, Chocolate Peanut Butter (28 Servings)
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Rule One R1 Whey Protein Isolate Powder Strawberry Banana 29 Serves *Clearance (Best Before 11/12/25)
Delivery $14.95
Rule 1 Protein Isolate 2LB / Choc Fudge
Delivery $9.50
R1 Protein WPI, Vanilla Buttercake / 2LB
Delivery between 5–17 Aug $10
Rule 1 R1 Protein Whey Isolate - 900g / 30 Serves Salted Caramel
Delivery between Wed – Thu $9.95
| Calories | 110 |
| Protein | 25 g |
| Fat, total | 0 g |
| Carbohydrates | 1 g |
| Sodium | 40 mg |
