Winny 25 - Gen-Shi Laboratories

Sterling's licensing of Stanozolol in the U.S. in 1962 marked a major expansion in anabolic therapy options. Originally developed by Winthrop Laboratories in the U.K., it was sold as Winstrol and used to combat severe muscle loss and endocrine deficiencies. The compound’s pyrazole-ring alteration made it resistant to estrogenic side effects and suitable for lean tissue support. While no longer sold in the U.S., Winstrol is still legally produced in certain countries, where it's used in both human and animal medical frameworks.

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For detailed information about Winny 25 by Gen-Shi Laboratories, consult with your doctor or healthcare professional.