Equal mass means one calculation covers both peptides simultaneously
But judging by the various responses on here, it doesn't seem to matter unduly, other than for pain of the needle actually going in

When patients use both treatments concurrently, several precautions are warranted : Injection site management : Rotate sites systematically and avoid administering both injections in the same anatomical area on the same day Gastrointestinal monitoring : Tirzepatide's GI effects may be misattributed to lipotropic injections, potentially leading to inappropriate dose adjustments Hydration emphasis : Ensure adequate fluid intake given tirzepatide's potential to cause dehydration through GI effects Medication adjustments : Consider reducing doses of insulin or sulfonylureas when initiating tirzepatide to mitigate hypoglycemia risk Realistic expectations : Counsel patients that weight loss benefits derive primarily from tirzepatide's pharmacological action Cost considerations : Lipotropic injections represent additional out-of-pocket expense without proven incremental benefit Patients should seek immediate medical attention for severe or persistent abdominal pain (possible pancreatitis), right upper quadrant pain with fever or jaundice (gallbladder disease), signs of allergic reaction, persistent vomiting leading to dehydration, or symptomatic hypoglycemia if on insulin/sulfonylureas

Fast-Acting: Unlike oral supplements, which must be digested and absorbed through the intestines, B12 injections provide a rapid boost to B12 levels in the body
Stunning place where you feel immediately welcomed and comfortable when walking in
Pairing B12-rich foods, like meats, fish, and dairy, with your injections can enhance their impact