In muscle, IGF-1 accelerates repair after atrophy or damage, reducing muscle injury markers and boosting regeneration through increased MyoD expression and satellite cell activation (3)
Once reconstituted from its lyophilised form, the peptide becomes vulnerable to hydrolysis, oxidation, aggregation, and microbial contamination making correct storage, handling, and adherence to sponsor-validated stability data essential for safety
The constipation mechanism is transit slowing and reduced bulk, not enzymatic insufficiency, so enzyme supplementation is mechanistically off-target for this specific problem
The most common side effects of NAC include: Upset stomach Nausea or throwing up Diarrhea Fatigue Eye irritation Itching or rash Skin swelling Wheezing Less commonly, NAC may cause: Low blood pressure Increased asthma symptoms Chest tightness or numbness around your mouth (if you inhale it) Headache Life-threatening allergic reaction (anaphylactic shock) Other considerations for N-acetylcysteine NAC may also: Slow blood clotting
This leads to a very common query: Can I take B12 tablets as well as injections