Hero Nutrition Mass Stack 60 caps – front product image with bold red label.
Hero Nutrition Mass Stack – Advanced Prohormone Complex for Mass, Strength & Definition (60 Caps)

Hero Nutrition Mass Stack – Advanced Prohormone Complex for Mass, Strength & Definition (60 Caps)

£66.00

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Hero Nutrition Mass Stack is an advanced prohormone blend created to support rapid lean muscle development, hardening, and overall performance enhancement. Containing a potent 75 mg per serving, this formula combines three complementary prohormonal agents that help deliver dry muscle gains and increased vascularity without water retention.

The formula is designed for serious, experienced users seeking to surpass their natural limits and achieve a physique that reflects maximum effort and precision.

Ingredient Breakdown

2a,3a-epithio-17a-methyletioallocholanol – 30 mg
A powerful compound often used for its muscle-hardening and recomposition effects. Known for promoting lean muscle density and a drier appearance, it’s ideal for users looking to enhance aesthetics and performance simultaneously.

Estra-4,9-dien-3,17-dion – 30 mg
A non-methylated prohormone that supports lean muscle gain while helping control estrogen-related side effects. It promotes a dry look and can be highly effective during cutting or recomp phases.

2,17-dimethyl-5-androstan-17-ol-3,3′-azine – 15 mg
A well-known compound used to improve strength, endurance, and lean mass while minimising fluid retention. It contributes to enhanced muscular output and visible definition.

Who Is It For?

Hero Nutrition Mass Stack is formulated exclusively for advanced users who understand prohormone protocols, including cycle support and PCT. It is particularly suitable for:

  • Bodybuilders during lean bulk or recomp phases

  • Athletes targeting strength, vascularity, and definition

  • Experienced users seeking dry mass without excessive bloat

Not recommended for beginners or casual users.

Dosage – Timing – Follow-Up

Suggested Use:
Take one capsule per day with food.
Do not exceed the recommended dose.
Cycle length: Up to 5 weeks.

Cycle Advice:

  • Always use on-cycle support during use

  • Follow up with a Post Cycle Therapy (PCT) protocol to support hormonal balance and protect muscle gains.