The catch and this is where honesty matters on a YMYL page is that can survive the gut in principle is not the same as has a proven, quantified oral bioavailability in humans. No such human number exists for this molecule

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
It is BPC-157, not BP-157
Oral Biomarker Changes Randomized human studies show that nicotinamide riboside can raise blood NAD-related levels and that oral glutathione can raise glutathione stores in selected compartments
The hydration and brightening peak in that window