Maximum Human Performance Probolic-SR Sustained Release Protein Powder
Today
Typical price$60
Amazon: the cheapest today among the stores checked
Buy on AmazonMaximum Human Performance Probolic-SR Sustained Release Protein Powder or Rule 1 Proteins R1 Protein Whey Isolate?
Cost the same today, across the stores checked.
Maximum Human Performance Probolic-SR Sustained Release Protein Powder is the cheaperRule 1 Proteins R1 Protein Whey Isolate is the cheaper
The comparison in detail
Rule 1 Proteins R1 Protein Whey Isolate
Today
Typical price$60
Amazon: the cheapest today among the stores checked
Buy on AmazonAffiliate links: if you buy, the store pays us a commission at no cost to you.
Both prices over the last 30 days
First data point for one of the two: the chart appears as the days go by.
Still only a few days of data for both to read the trend; the chart fills in as the days go by.
Where is each one cheapest today?
Updated 06/11/2026
Probolic-SR Sustained Release Protein Powder
- Amazon Lowest price$60Buy on Amazon
R1 Protein Whey Isolate
- Amazon Lowest price$60Buy on Amazon
Spec sheet side by side
| Item | Probolic-SR Sustained Release Protein Powder | R1 Protein Whey Isolate |
|---|---|---|
| Specs | ||
| Type | Protein | Protein |
| General | ||
| Model changes | Probolic-SR Sustained Release Protein Powder | R1 Protein Whey Isolate |
Other comparisons
Probolic-SR Sustained Release Protein Powder orDesigner Wellness Unflavored$60Compare- R1 Protein Whey Isolate orDesigner Wellness Unflavored$60Compare
Probolic-SR Sustained Release Protein Powder orDymatize Bundle of Dymatize ISO100 Whey Protein Powder Isolate$62Compare- R1 Protein Whey Isolate orDymatize Bundle of Dymatize ISO100 Whey Protein Powder Isolate$62Compare
How we choose
Source: Catalog of partner stores, checked on 06/11/2026.
Lowest price seen for the product in the stores we read, on the day it was read, before sales tax. The model is the brand plus the name of the supplement; the versions go in the table. The price range, the median and the position use only models with a score; the price comparison looks at models whose score is within 0.5 points.
The spec score doesn’t measure how it works for you or durability, and the strong or weak point reading is just a comparison of numbers, not a buying recommendation.