Blackstone Labs | BSL Recomp Rx 120ct | 120 Capsules

Blackstone Labs Recomp Rx is a minimalist body-recomposition formula built around two non-stimulant levers: ursolic acid for physique and muscle-retention signaling, and banaba extract for glucose management and nutrient partitioning. This is not a kitchen-sink fat burner and it is not a pre-workout. The formulation philosophy is narrower and more strategic: support a leaner look, help direct nutrients more effectively around meals, and create a better internal environment for cutting without relying on caffeine, yohimbine, or thermogenic overload.

The centerpiece is the proprietary Fat For Muscle Matrix delivering 125mg ursolic acid per capsule from rosemary and loquat extracts, with the brand-recommended protocol commonly used at 3 capsules daily for 375mg ursolic acid per day. That matters because human interest in ursolic acid has centered on doses in roughly the 150-450mg/day range, with the most compelling body-composition discussions usually happening near the higher end. Mechanistically, ursolic acid appears to influence pathways tied to skeletal muscle metabolism, including IGF-1/insulin signaling, while also showing potential effects on fat metabolism and muscle preservation in preclinical work. Translation to humans is not absolute, but the ingredient remains relevant in recomp formulas because it is one of the few plant compounds repeatedly discussed for the dual goal of supporting a harder physique while helping preserve lean tissue. What most users notice is not an acute sensation, but a gradual improvement in body-composition efficiency when training and diet are already in place.

Banaba leaf extract is dosed at 60mg and standardized to 2% corosolic acid, yielding about 1.2mg corosolic acid per capsule. Banaba’s primary role is glucose disposal support. Corosolic acid has been studied for its ability to support insulin sensitivity and glucose transport, which is why banaba often appears in nutrient-partitioning products. In practical terms, this ingredient is designed to help the body handle carbohydrate-containing meals more effectively, potentially improving the odds that incoming nutrients are directed toward muscle glycogen and productive metabolism rather than simply contributing to spillover. The listed dose is modest rather than aggressive, but it is directionally appropriate for a meal-based repartitioning formula.

The formula’s real system-level logic is straightforward: ursolic acid targets recomposition from the muscle/fat signaling side, while banaba addresses what happens to nutrients after you eat. That combination is coherent for users in a calorie deficit, slight surplus, or maintenance phase who want cleaner nutrient handling and better physique outcomes over weeks, not hours.

Transparency is mixed. Banaba is fully disclosed at 60mg, but the ursolic acid source sits inside a proprietary 500mg matrix, with only the delivered ursolic acid amount standardized at 125mg per capsule. That is more informative than a completely opaque blend, but still not ideal because the exact contribution of each botanical source is hidden.

What should you expect? Day 1 feels like almost nothing, because this is not a stimulant product. Used consistently with meals, the goal over 2-4 weeks is subtler: steadier meal handling, less of the soft look that often accompanies cutting mistakes, and better recomposition support while training and diet do the heavy lifting. This is a specialist tool, not a shortcut.

How to Use Blackstone Labs - Recomp Rx - 120 Count