Identification and distribution of mRNA encoding the Y1, Y2, Y4, and Y5 receptors for peptides of the PP-fold family in the rat intestine and colon
Some articles to read about N-acetylcysteine and skin picking, nail-biting, and trichotillomania: N-Acetylcysteine in the Treatment of Excoriation Disorder: A Randomized Clinical Trial (NIH National Center for Biotechnology Medicine) Antioxidants (N-acetylcysteine and glutathione) help treat skin-picking disorder in mice, researcher says (Stanford Medicine) N-acetylcysteine for Trichotillomania, Skin Picking, and Nail Biting (The TLC Foundation for Body-Focused Repetitive Behaviors) Clinical Trial: N-Acetyl Cysteine in Pathologic Skin Picking (US National Library of Medicine) N-Acetylcysteine Side Effects (Mayo Clinic) A detailed understanding of NAC and how it works (NCBI) The Health Benefits of N-Acetylcysteine (Verywell Health) Most studies and doctors recommend taking 600mg of NAC twice a day

If side effects are significantly affecting your quality of life, do not stop the medication without consulting your prescriber, as they may be able to adjust your treatment plan or provide supportive measures to help manage symptoms effectively
Protects cell health
(PubMed) Heude B, Ducimetiere P, Berr C
p=0.048)