Boldenone Undecylenate 300 – Proper Labs


Boldenone Undecylenate 1ml/300mg
10ml vial

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Proper Bold 300 – Proper Labs / Boldenone Undecylenate

Buy Boldenone Undecylenate 300 by Proper Labs through Steroids UK, your trusted source for premium quality supplements. With our commitment to safe shopping and fast shipping, and the reliability of Proper Labs, you’re one step ahead in the performance stakes.

Overview of Boldenone Undecylenate

Boldenone Undecylenate, also known as Equipoise, is an anabolic androgenic steroid (AAS) that activates androgen receptors to boost protein synthesis and nitrogen retention. This  leads to improved muscle mass and endurance. 

Equipoise is often used in cutting cycles to help preserve lean muscle mass while reducing body fat. Its slow-acting nature, due to the long undecylenate ester, provides a steady and gradual release of the hormone, making it a go-to injectable steroid for many bodybuilders.

How Boldenone Undecylenate Works

Boldenone Undecylenate binds to androgen receptors, stimulating protein synthesis and nitrogen retention within muscle cells, enhancing muscle growth, and improving athletic performance. Due to its balanced anabolic and androgenic properties, Boldenone Undecylenate is an ideal choice for those looking for moderate muscle gains, increased strength, and improved endurance without the risk of severe side effects.

Benefits When You Buy Proper Labs Boldenone Undecylenate 300

  • Steady Muscle Gains: Experience reliable muscle growth without the worry of excessive water retention.
  • Increased Strength and Endurance: Push your limits with enhanced physical performance.
  • Improved Vascularity: Achieve a more defined, vascular appearance.
  • Appetite Stimulation: Support your mass-building efforts with increased nutritional intake.

Side Effects

  • Acne and skin changes
  • Potential hair thinning or loss
  • Mild virilisation symptoms in women
  • Heightened appetite

Follow a responsible cycle, including an effective post-cycle therapy (PCT), to maximise your gains while maintaining health and hormonal balance. A typical cycle of Boldenone Undecylenate lasts 12-16 weeks, with users advised to monitor their progress closely and make adjustments as needed.


Consult with a healthcare professional before starting Boldenone Undecylenate 300. Proper Labs ensures quality and safety, providing products with laboratory verification for authenticity. However, individual responses may vary.