is nac the precursor to glutathione mechanism of action of N-acetylcysteine (NAC): The emerging role of H2S and sulfane sulfur species Meno Clinic NAC (N-Acetyl L-Cysteine):

Critical for Pregnancy and Fetal Health Used in prenatal and periconceptional care for high-risk pregnancies or those unable to use oral folic acid

It blends carefully selected herbal extracts, amino acids, and vitamins known to promote healthy libido, hormonal balance, and overall well-beingwithout the need to take pills or capsules

The types of services and procedures performed are annual exams, school and sports physicals, chronic disease management such as high blood pressure, high cholesterol, hypthyroidism, UTI, etc

And, not being a lawyer, I am definitely not the person to grovel through the law as published and case law