N-Acetyl-L-Cysteine 120c by Progressive Labs – Glutathione Support with NAC
N-Acetyl-L-Cysteine capsules by Progressive Labs provide 750 mg of NAC per vegetable capsule, with 120 capsules in the bottle. This single-active-ingredient formula supplies a modified form of the amino acid L-cysteine rather than a blend of antioxidant vitamins or herbs.
Its focus is glutathione support: NAC provides cysteine, a building block your cells use to make their own glutathione. For someone comparing NAC with a glutathione supplement, that distinction matters. This product supplies a precursor, not preformed glutathione, and its ingredient list makes the amount of NAC per serving clear.
Key N-Acetyl-L-Cysteine 120c Benefits
- Provides cysteine for the body's own glutathione-making pathways, supporting a foundational part of normal cellular antioxidant defenses.
- Supports antioxidant defense through glutathione precursor nutrition rather than by supplying a broad mixture of antioxidant nutrients.
- Offers targeted cellular support by providing a building block used in glutathione, which helps cells manage reactive compounds produced during everyday metabolism.
How N-Acetyl-L-Cysteine 120c Works
NAC is short for N-acetyl-L-cysteine. After it is processed in the body, it can supply L-cysteine, one of the three amino acids used to build glutathione. The other two are glutamate and glycine. Glutathione participates in cellular reactions that help handle reactive compounds and maintain the chemical balance needed for normal cell function.
Think of NAC as supplying material for that system, not as replacing the system itself. Cells still need functioning metabolic pathways to make and use glutathione. Taking more NAC does not automatically mean more benefit, especially when glutathione is already adequate. This is why a targeted NAC supplement should be selected for an individual nutritional goal rather than added simply to increase the number of antioxidants in a routine.
Key Functional Ingredients Include:
- N-Acetyl-L-Cysteine: Supplies cysteine for glutathione production, helping provide a building block for the body's own antioxidant system. Glutathione helps cells process reactive compounds generated during normal metabolism. NAC is a precursor rather than glutathione itself; its use depends on the body's ability and need to make glutathione.
N-Acetyl-L-Cysteine 120c Is Formulated For
- Adults considering focused NAC precursor nutrition with their healthcare professional.
- People comparing a single-ingredient NAC formula with multi-ingredient antioxidant blends.
- Those who prefer vegetable capsules and want the NAC amount stated separately from the inactive ingredients.
Supplements support your health but do not replace a balanced diet. Always check with your healthcare practitioner if you have doubts about a new supplement. Or you may book a FREE product consultation with Holistic Health Partners, led by Carolyn Mulally BS, RN, HN-BC. You may also wish to explore our other NAC and Glutathione, Anti-Oxidants Supplements, and Amino Acids Supplements collections.
Recommendation: One vegetable capsule per serving, up to four capsules per day
Serving Size: 1 Vegetable Capsule
Servings Per Container: Not stated on the manufacturer's label
N-Acetyl-L-Cysteine ... 750 mg*
*Daily Value not established.
Other Ingredients: hydroxypropyl methylcellulose (vegetable capsule), magnesium stearate.
Frequently Asked Questions About N-Acetyl-L-Cysteine 120c
What are the benefits of N-Acetyl-L-Cysteine 120c?
N-Acetyl-L-Cysteine 120c supplies NAC as a source of cysteine for the body’s own glutathione production. Glutathione is part of the cellular system that handles reactive compounds generated during normal metabolism. Each vegetable capsule contains 750 mg of NAC, with no other active ingredients listed. It is a focused precursor formula, not a glutathione capsule or a multivitamin. Its purpose is nutritional support for that pathway, not a promise that everyone needs additional antioxidants.
Who should take N-Acetyl-L-Cysteine 120c?
This Progressive Labs formula is an option for adults considering targeted NAC nutrition with a healthcare professional. It may suit someone who wants a single active ingredient instead of a combination antioxidant formula. The bottle contains 120 vegetable capsules, and the manufacturer directs one vegetable capsule per serving, up to four capsules per day. That upper amount is not a requirement to take four capsules. Pregnancy, lactation, medication use or a health condition calls for a provider discussion before use.
Are there any side effects of taking N-Acetyl-L-Cysteine 120c?
NAC can cause stomach upset, nausea, vomiting or diarrhea. Do not take it with nitroglycerin: the combination can further lower blood pressure and cause severe headaches. Manufacturer warning: If you are pregnant or lactating woman, have any health conditions, or are taking any medication, make sure to consult your healthcare provider prior to use. People receiving cancer treatment should also discuss NAC with their oncology team because antioxidant supplements may interfere with some therapies. These cautions matter even though this is a single-ingredient formula; a short ingredient list does not establish suitability for everyone.
How does N-Acetyl-L-Cysteine 120c support overall health?
N-Acetyl-L-Cysteine supports the supply of cysteine used to make glutathione, an important component of normal cellular antioxidant defenses. This connection explains the formula’s focus on precursor nutrition rather than a broad range of vitamins and minerals. NAC does not supply every nutrient needed for overall health, and taking it is not a substitute for food or individualized medical care. Consider the 750 mg capsule alongside the rest of your supplement routine so your practitioner can identify overlap and assess whether NAC fits your needs.
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
