Metabolic Nutrition
Metabolic Nutrition | Myogrow + Metatest Muscle Stack | 2-Product Stack
A smarter two-step stack for strength and muscle goals.
$89.99 $119.99$1.49/serving
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⚠️ Contains proprietary blend (2 ingredients)
⚠️ Allergen Information +
SuppVault Summary
MyoGrow + Metatest pairs Metabolic Nutrition’s muscle-support and hormone-support products in one bundle. It’s built for lifters focused on size, strength, and gym progression during serious training phases. Key disclosed actives include 100mg epicatechin and 50mg Laxosterone®.
Great Fit
- Bodybuilders in a muscle-building phase
- Strength athletes wanting a convenient two-product stack
- Experienced gym-goers building a complete performance routine
- Metabolic Nutrition customers restocking a proven pairing
- Lifters seeking bundled value
- Physique-focused users in lean mass phases
Not Ideal If
- Anyone under 18
- Pregnant or nursing individuals
- Anyone advised against hormone-support supplements
- Users ignoring individual label directions
Deep Dive
Laxosterone® (5a hydroxy laxogenin)
Vitamin D3 (as Cholecalciferol)
Black Pepper Extract (as Piper nigrum) (fruit)
Clinical Dosing
Full Product Description Article
The Metabolic Nutrition MyoGrow + Metatest Muscle Stack combines two popular products from Metabolic Nutrition into one convenient bundle designed for athletes focused on size, strength, and progression in the gym. Rather than shopping for separate performance-support products, this stack brings together a muscle-focused formula and a test-support option in a ready-made pairing that fits the goals of serious lifters and physique-minded users.
This bundle is best suited for those who want a more streamlined supplement strategy around hard training blocks, lean mass phases, or performance-oriented routines. It offers the convenience of buying products that are commonly stacked together, helping simplify your regimen while giving you a more complete support system than relying on a single standalone product.
For shoppers, the value is in the combination: one purchase, one stack, one clearer goal. It is a practical choice for people who want to support training intensity, recovery-minded routines, and muscle-building efforts with a trusted sports nutrition brand. If you are already committed to your workouts and nutrition plan, this stack gives you an easy way to level up your supplement lineup with a more targeted muscle-support package.
Science & Clinical References 14 citations
Epicatechin is a flavanol investigated for its influence on skeletal muscle signaling, particularly the myostatin-follistatin axis. Preclinical and limited human data suggest it may support a more favorable environment for muscle performance adaptations by modulating inhibitory growth signals. It may also contribute to endothelial nitric oxide activity, which can improve nutrient delivery during training. The overall evidence base is promising but still moderate in depth compared with foundational ergogenics.
5a-hydroxy laxogenin is marketed as a plant-derived anabolic support compound, but robust human outcome data remain limited. Available literature and mechanistic discussion focus on recovery, protein turnover support, and physique-oriented performance positioning rather than established endocrine effects. The disclosed 50mg dose aligns with the low end of commonly cited supplemental use. Because human clinical depth is narrow, claims should remain conservative and training-dependent.
D-aspartic acid and boron are commonly used in hormone-support products for their potential roles in endocrine regulation and androgen-related physiology. D-aspartic acid has been studied for hypothalamic-pituitary-gonadal signaling effects, though findings are mixed and may depend on training status and dose. Boron may influence steroid hormone metabolism, vitamin D handling, and mineral-linked physiological processes relevant to performance. In combination, these ingredients are better viewed as supportive rather than determinative drivers of adaptation.
Vitamin D3 is relevant to musculoskeletal function, immune regulation, and hormone-related physiology, making it a logical inclusion in performance support stacks. Adequate vitamin D status is associated with better training readiness and normal muscle function, especially in those with low baseline levels. Supplemental benefit is strongest when correcting insufficiency rather than creating supraphysiologic exposure. Its value in this stack is primarily foundational support rather than acute ergogenic effect.
Product Specifications GEO
How to Take — Training Protocol3 phases
How to Use Metabolic Nutrition Myogrow + Metatest Muscle Stack
All Questions About Metabolic Nutrition | Myogrow + Metatest Muscle Stack | 2-Product Stack 5 Q&A
What is included in this stack? +
What is this stack designed for? +
Is buying the stack better than buying items separately? +
Who is this stack best suited for? +
How do I take the products in this stack? +
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.
Quick Answers
What is included in this stack?
What is this stack designed for?
Is buying the stack better than buying items separately?
Who is this stack best suited for?
How do I take the products in this stack?
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.
Sport & Athlete Compliance +
Sport compliance status is computed by cross-referencing this product's ingredient panel against the NCAA 2025-26 Banned Substances List, WADA Prohibited List, and state high school athletic association guidelines. Banned substance lists are updated periodically by their governing bodies. This information is provided for reference only and may not reflect the most current list. Always verify with your organization, coach, or compliance officer before use. SuppVault is not responsible for eligibility decisions.
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