IsaLean Performance Protein
36g grass-fed whey athletic meal shake — IsaPro’s whey folded into the IsaLean base.
14 meals · $6.00 per meal
$84 US retail
Why Isagenix makes this one
What it was built to do
Built by combining IsaPro with IsaLean to raise protein without adding carbs.
What actually makes it different
36g whey concentrate plus milk protein concentrate, adding a slower casein fraction; still a complete meal.
Who it suits
Athletes maximising muscle, older adults preserving it, people breaking plateaus.
The dividing line
Tri-Release: the brand calls this a full meal replacement and Tri-Release a multistage protein supplement.
What the system-level research shows
Several published trials involve these products, funded by unrestricted Isagenix grants with company employees or advisers among the authors. They test a whole protocol — protein pacing with calorie restriction or intermittent fasting — not a single shake. In one head-to-head over eight weeks the protein-pacing group lost more weight and more visceral fat than a heart-healthy comparison diet, and reported lower desire to eat. In a 52-week follow-up the control group trended back toward baseline on most markers despite a lower average calorie intake. Those are findings about a programme. They are not evidence that this one product, bought on its own, produces that result, and this site will not present them that way.
Details the shop page leaves out
- 36g of whey per serving against 24g in the standard shake. This is the product formerly sold as IsaLean PRO — worth knowing if you are reading older material or older study citations.
At a glance
| Category | Shakes |
| Format | Canister |
| Size | 14 meals |
| Retail price | $84 |
| Cost per meal | $6.00 |
| Suggested minimum age | 12 and over (Isagenix guidance) |
Flavors and variants
- French Vanilla
- Natural Chocolate
- Strawberry Cream
Allergens can differ between flavors, so check the pack you receive. Full allergen and manufacturing statement.
Where to buy it
This goes straight to the product on our storefront.
The full catalogue with current retail pricing lives on the shop page.
Others in Shakes
- IsaLean Protein Shake
- IsaLean Protein Shake, Plant-Based
- Tri-Release Protein — 1ct
- Tri-Release Protein — 2ct
- IsaPro Whey Protein
- Clear Protein
Jaylan Jones is an Independent Isagenix Brand Partner. As a Brand Partner we earn from qualifying purchases made through links on this page. Prices are US retail, sourced April 2026, and may have changed. This is an independent site and is not the official company store.