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"Today, bodybuilders often stack several different steroids, layering and overlapping them in cycles that focus on competitions and stretch as long as a year." Anabolic steroids function similarly to testosterone: They bind to your androgen receptors to help regulate libido, sperm production, bone building, and muscle growth

Contact your GP if: You have been found to have elevated B12 levels and have not received an explanation or follow-up plan You are taking high-dose B12 supplements without medical supervision You develop new symptoms whilst taking B12 supplements, particularly skin changes, persistent headaches, or gastrointestinal symptoms You have risk factors for liver disease (alcohol excess, viral hepatitis, obesity) and have elevated B12 You experience unexplained weight loss, night sweats, or persistent fatigue alongside elevated B12 Seek urgent medical attention if you experience: Jaundice (yellowing of skin or eyes) Severe abdominal pain or swelling Unexplained bruising or bleeding Confusion or altered consciousness Severe, persistent vomiting These symptoms may indicate serious underlying conditions such as acute liver failure, haematological emergencies, or other critical illness requiring immediate assessment

It is used to treat a variety of conditions, including muscle damage, inflammation, and gastrointestinal disorders

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Who should be cautious GHK-Cu has a strong safety profile, but it is not for everyone