4 Both total B12, i.e
Oxidative stress reduction: It may reduce oxidative stress burden in injured tissues, which helps maintain a pro-repair environment

Some notable safety-related conclusions from scientific materials include: A 2016 review of TB4 for dermal healing: The safety profile is excellent, and no preclinical toxicology has been found.22 A 2016 clinical trial on patients with STEMI: Our pilot study suggested that T4-optimized EPC transplantation appeared to be feasible and safe.34 A 2021 review of TB4 research: It was well tolerated and safe in healthy people and suitable for use in a clinical study.21 Though the compound itself may be generally safe for adults to use, some common side effects from TB4 injections reported by patients and doctors include: Injection site reactions (e.g., redness, mild swelling, or pain) Mild gastrointestinal symptoms Headaches and dizziness Rare but more serious side effects can include fever, blistering at the injection site, muscle aches, skin rash, vomiting, severe itching, or hives
And as I mentioned, some people are taking cispeptin antagonists
All needles are manufactured to strict quality standards using computerized grinding and 100% visual camera inspection to promote sharp, consistent, and high-quality needles in FDA-inspected ISO 13485 certified facilities which utilize good manufacturing practices per USFDA standards