Chemical name: (17β)-3-Oxoandrosta-1,4-dien-17-yl undec-10-enoate
Formula: C30H44O3
Anabolic activity index: 100%
Androgenic activity index: 50%
BOLDENONE 500 10ml VIAL – SIS LABS
Product Description:
Boldenone 500, produced by SIS Labs, is a potent anabolic steroid solution formulated for performance enhancement and muscle growth. Here’s an in-depth overview of this product:
1. Active Substance: Boldenone Undecylenate
- Boldenone 500 contains Boldenone Undecylenate as its active substance. Boldenone Undecylenate is an anabolic androgenic steroid derived from testosterone. It is known for its ability to promote significant muscle growth, increase strength, and improve endurance by enhancing protein synthesis and nitrogen retention in the muscles.
2. Medical and Performance Indications:
- While Boldenone Undecylenate is used in veterinary medicine to improve weight gain and muscle mass in animals, it is also popular in the bodybuilding and athletic community for its anabolic properties. It helps athletes and bodybuilders increase muscle mass, enhance strength, and improve overall physical performance. Additionally, it is valued for its ability to promote a steady and sustained increase in lean muscle mass with fewer side effects compared to other anabolic steroids.
3. Strength and Dosage:
- Boldenone 500 is available in a vial containing 10 ml of solution, with a concentration of 500 mg/ml of Boldenone Undecylenate. The typical dosage for athletes and bodybuilders ranges from 200 mg to 600 mg per week, administered via intramuscular injection. Due to its long-acting nature, Boldenone is usually injected once or twice a week. The exact dosage and duration of use should be determined by a healthcare professional based on individual goals and response.
4. Formulation and Administration:
- Boldenone 500 is formulated as an injectable solution. The solution should be administered via intramuscular injection, typically into large muscle groups such as the glutes or thighs. Proper aseptic techniques should be followed to ensure safe and effective administration.
5. Manufacturer: SIS Labs
- Boldenone 500 is manufactured by SIS Labs, a reputable company known for its high-quality anabolic steroid products. SIS Labs adheres to stringent manufacturing standards and quality control measures to ensure the safety, purity, and potency of its products, including Boldenone 500.
6. Benefits:
- Boldenone 500 offers numerous benefits for athletes and bodybuilders, including significant muscle growth, increased strength, improved endurance, and enhanced recovery. Its anabolic effects help users achieve a more defined and muscular physique. Additionally, Boldenone is associated with fewer estrogenic side effects, making it a preferred choice for many.
Boldenone 500 by SIS Labs, containing Boldenone Undecylenate at a concentration of 500 mg/ml, is a highly effective anabolic steroid for those seeking enhanced muscle growth and performance. With its reliable formulation and high-quality manufacturing, Boldenone 500 provides a valuable option for athletes and bodybuilders aiming to achieve their physical and performance goals.










Magnus Alderwick –
Boldenone 500 delivered exactly the level of quality I was looking for. The oil was exceptionally smooth, the vial was easy to use, and the overall presentation reflected premium manufacturing standards. Combined with my disciplined training and nutrition program, I was pleased with the consistency of the product throughout the entire vial. Based on my experience, I would confidently purchase Boldenone 500 from SIS Labs again.
Elowen Ravenscroft –
My experience with Boldenone 500 has been excellent. The vial was professionally sealed, the oil remained clear and consistent throughout the cycle, and every injection went smoothly. I appreciated the reliable quality and attention to detail in the manufacturing process. Following my structured training plan, I found this product to be dependable from beginning to end. SIS Labs continues to produce products I trust.
Benedict Fairhurst –
I’ve used products from several manufacturers over the years, and Boldenone 500 from SIS Labs stands out because of its outstanding consistency. The oil injected smoothly every time, and every dose reflected excellent manufacturing quality. Combined with proper nutrition and a disciplined workout plan, I was very satisfied with my overall experience. I would happily choose this product again for future training programs.
Vivienne Ashcroft –
Boldenone 500 exceeded my expectations from start to finish. The vial arrived securely packaged, the oil appeared exceptionally clean, and every injection was comfortable. I appreciated the consistent quality from the first dose to the last, which gave me confidence in the product. Alongside my regular fitness routine, I was satisfied with the steady progress I experienced. SIS Labs has delivered another dependable product.
Caelan Whitcombe –
I recently added Boldenone 500 from SIS Labs to my training program, and I was genuinely impressed with the product quality. The oil was clear, every injection was smooth, and the consistency remained excellent throughout the entire 10 ml vial. Combined with disciplined nutrition and a structured workout routine, I was pleased with my overall experience. The professional packaging and dependable manufacturing standards make this a product I would confidently purchase again.