SUPPSAVER
Protein WPI
Whey isolate · 2.2kg · tracked across 11 retailers (all sizes), prices checked nightly.
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Overview
Rule 1 Protein WPI is a whey isolate that SuppSaver compares across 1 Australian retailer. The best price we're currently tracking is $209.95 at Mr Supplement, which works out to $11.45/100g protein — the true-cost figure we rank every whey protein on. That comes to roughly $2.92 per serve. At 83% protein by weight, the cost per 100g of actual protein — not just powder — is what decides whether it's good value.
Retailer prices shift week to week, so we re-check every listing nightly and rank by true cost per 100g of protein rather than sticker price. That lets you see whether Protein WPI is genuinely the cheapest whey protein on the market or simply discounted right now. It's listed in 2.3kg, 1.4kg, 910g, 680g, 450g and 2.2kg. Shoppers rate it 4.9 out of 5 from 70 reviews. Use the price history, the per-store breakdown and the alternatives below to confirm you're getting the best deal before you buy.
Price history
+10.8% 30d1 store carries this size
cheapest firstConfirm the price at the retailer before purchasing.
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What people say
4.9(70)Overall sentiment is overwhelmingly positive, with customers frequently praising the sensational taste, excellent mixability, and positive impact on their fitness goals. Recurring highlights include its great value, being easy on the stomach, and suitability for various dietary needs. The main criticisms are minor, noting occasional flavor blandness when mixed with certain items or the product being perceived as expensive.
About
Rule 1 R1 Protein Whey Isolate is a premium supplement designed for athletes and gym enthusiasts seeking a clean and fast-digesting protein source. The formula features a powerful blend of 100 percent whey protein isolate and hydrolysed whey isolate to support muscle growth and efficient recovery. Each 100 grams provides 83.3 grams of protein and 366.7 calories. This product is ideal for individuals who need a high-quality protein boost to meet their daily nutritional requirements.