Supertest 375 mg 10 ml Xeno Labs USA

Product Overview

Supertest 375 mg 10 ml Xeno Labs USA is an injectable testosterone mix designed as a Sustanon‑style blend, providing a total of 375 mg testosterone per ml in a 10 ml multi‑dose vial. The formulation combines multiple esters to deliver both fast onset and extended release, positioning it as a versatile option for buyers who understand long‑acting hormone profiles and want smoother testosterone coverage from a single product. Marketed through USA‑domestic channels, Supertest 375 is presented as a commercially available research and performance‑category product for collection, reference, and other lawful uses.​

Brand & Manufacturer Information

Xeno Labs USA is a well‑known underground brand with strong presence in US‑domestic performance markets, offering a broad catalogue of injectables, blends, and base hormones. The brand emphasizes high‑concentration injectables, clear labeling, and USA‑based distribution for reduced delivery times and simpler logistics for American buyers. Within its range, Supertest 375 is positioned as a flagship testosterone blend alongside single‑ester options like Test C and Test E, targeting intermediate to advanced users who already understand testosterone pharmacology.​

Active Compound Information

Supertest 375 is a multi‑ester testosterone blend (often described as a Sustanon‑type or “Testosterone Mix”). Depending on the batch and listing, the ester profile is typically one of two common schemes:​

• Propionate / Phenylpropionate / Isocaproate / Decanoate (classic Sustanon‑style)​

• Propionate / Isocaproate / Enanthate / Cypionate (four‑ester Xeno formulation)​

In both cases, the base hormone is testosterone, an anabolic‑androgenic steroid with chemical formula C27H40O3, esterified to modify release and half‑life. The mix design combines a fast ester for rapid onset with medium and long esters for extended coverage, but no specific medical or performance outcomes are promised or guaranteed.​

Product Specifications

Supertest 375 mg 10 ml Xeno Labs USA is generally specified as:

• Active ingredient: Testosterone blend (multi‑ester)​

• Total strength: 375 mg/ml

• Pack size: 10 ml multi‑dose vial (total 3750 mg per vial)​

• Form: Oil‑based injectable solution for intramuscular use

• Typical ester components (example profile):

  • Testosterone Propionate – fast‑acting ester

  • Testosterone Phenylpropionate or Propionate/Isocaproate – short/medium esters

  • Testosterone Isocaproate – medium‑long ester

  • Testosterone Decanoate or Enanthate/Cypionate – long ester​

The vial is standard injection‑grade glass with rubber stopper and crimped aluminium cap, labeled with product name, strength, brand, and batch/expiry details.​

Quality Control & Testing Standards

Retailers describe Supertest 375 as a sterile, oil‑based injectable manufactured under controlled conditions at Xeno Labs facilities, with focus on maintaining the declared 375 mg/ml concentration and consistent ester ratios. Vendor descriptions highlight internal quality checks, filtration, and batch coding, and sometimes reference user feedback or informal lab reports as indicators of reliability, acknowledging that this is not equivalent to formal regulatory approval. Informed buyers typically combine brand reputation, repeat‑order experience, and any available third‑party assays to assess consistency over time.​

Intended Use & Market Positioning

Supertest 375 mg 10 ml is marketed towards intermediate and advanced adult consumers, researchers, and collectors already familiar with testosterone‑based compounds. The high 375 mg/ml concentration allows users to reduce injection volume compared with lower‑dose blends, making it attractive for those who prefer concentrated multi‑ester products over single‑ester options. Retail descriptions often reference its suitability for both “bulking” and “cutting” research contexts without providing prescriptive cycle design, and emphasize that any practical use should be supervised and compliant with applicable regulations.​

Packaging, Storage & Handling

Supertest 375 mg 10 ml Xeno Labs USA is shipped from domestic US warehouses in discreet outer packaging with tracking, typically via USPS or similar services. The 10 ml vial is protected by inner padding or boxing to minimize breakage and features printed labeling identifying the blend and strength. Vendors recommend storage in a cool, dry place at controlled room temperature, away from direct sunlight and extremes of heat or cold, consistent with standard handling for oil‑based injectables.​

Purchasing & Availability Information

Supertest 375 is widely stocked on US‑domestic performance and “research” eCommerce platforms carrying the Xeno Labs line. Typical purchase flows include secure online checkout with multiple payment options (crypto, Zelle, card, etc.), a fixed domestic shipping fee, and 3–7 business day delivery windows. Many sites highlight live stock status, loyalty points, or discounts and encourage buyers to contact support via chat or messaging apps for product questions.​

Legal & Regulatory Disclaimer

Multi‑ester testosterone products such as Supertest 375 contain anabolic‑androgenic steroids that are controlled or prescription‑only substances in many jurisdictions. Buyers are solely responsible for understanding and complying with all applicable local, state, federal, and international laws regarding the purchase, possession, and any use of such compounds. Retailers typically state that products are sold for research, informational, or collection purposes only, that no medical advice or dosing guidance is provided, and that misuse can carry serious health and legal risks.​