Strength From Within Pack
WITHIN with IsaLean Shake and Creatine.
30 covered days · $8.33 per covered day
$250 US retail
As an Isagenix Brand Partner we earn from qualifying purchases made through this link. Prices are US retail, sourced April 2026. Full disclosure.
Box
30 covered days
3 products inside
Why Isagenix makes this one
What it was built to do
A single foundational system replacing the practice of stacking separate gut products.
What actually makes it different
The only Isagenix lactoferrin or colostrum product: 200mg effera lactoferrin, 1g colostrum, 3g fibre, 8B CFU.
Who it suits
Ages 4+, one scoop daily, wanting gut barrier, immune and recovery support from one product.
The dividing line
FiberPro: less fibre, but adds postbiotics, colostrum and lactoferrin. Isagenix publishes no guidance on choosing.
At a glance
| Type | Pack or system |
| Retail price | $250 |
| Covers | 30 days |
| Cost per covered day | $8.33 |
Cost per covered day is the number worth comparing across packs. Above the 30-day tier, spending more generally buys more products rather than more days.
What is in the box
Isagenix itemises 3 products in this pack. Each one has its own page here, so you can see what it costs on its own and what the bundle is actually saving you.
| Included | Size | Retail on its own | Per serving |
|---|---|---|---|
| WITHIN — 1ct | 30 servings | $160 | $5.33 |
| IsaLean Protein Shake | 14 meals | $73 | $5.21 |
| Creatine | 30 servings | $27 | $0.90 |
Bought separately those pieces come to $260 at retail, against $250 for the pack — a saving of $10. The pack may contain items Isagenix does not itemise, so treat that as the floor rather than the exact difference.
Where to buy it
Every product and pack, filterable by category, is on the shop page.
How this compares to the other packs
Packs cover different lengths of time, so cost per covered day is the only figure that compares them honestly. Strength From Within Pack covers 30 days.
| Pack | Covers | Retail | Per covered day |
|---|---|---|---|
| Strength From Within Pack | 30 days | $250 | $8.33 |
| 30-Day Reset | 30 days | $439 | $14.63 |
| 11-Day Reset Pack | 11 days | $235 | $21.36 |
| Healthy Lifestyle Pack | 30 days | $222 | $7.40 |
| Lean Muscle Essentials Pack | 30 days | $331 | $11.03 |
| Shake and Cleanse Pack | 30 days | $247 | $8.23 |
| Shred Pack | 30 days | $506 | $16.87 |
| Bedtime Belly Buster Bundle | 30 days | $139 | $4.63 |
| GLP-1 Support Pack | 30 days | $336 | $11.20 |