Clinically Studied Substantiated DoseDietary Supplement Support: ImmunityCellular HealthAntioxidant Levels Powerful Antioxidant Support Free radicals and oxidants are byproducts of cell metabolism, often worsened by factors such as poor diet, pollution, stress, and even intense exercise. Too many free radicals in your body can build up over time and lead to oxidative stress, which can be harmful to your health. Antioxidants fight oxidative stress. While your body can produce antioxidants naturally, they are ideally supplied by foods and supplements like N-acetyl-L-cysteine (NAC). NAC is a powerful antioxidant and an important amino acid that supports a variety of biological processes. Unlike other antioxidants like vitamins C and E, NAC helps your body replenish glutathione, the most powerful naturally occurring antioxidant. By increasing glutathione levels, NAC helps strengthen your immune system and provides you with greater protection against free radicals and oxidative stress. Every one of these capsules contains 600mg of NAC - the clinically studied dose of this potent compound - designed for maximum impact and real results. Fundamental Stacking All of the Force Factor® Fundamentals formulas were designed to stack together, as well as with any other supplement in our full line of premium health and wellness products. Unleash Your Potential® The fundamental building blocks of superior health and wellbeing are ingredients that deliver exceptional benefits - potent compounds taken alone or in combination that fuel premium nutrition and help us lead more fulfilling lives. Whether addressing a specific concern, targeting a particular deficit, or amplifying an existing attribute, each Force Factor® Fundamentals formula was developed using the same strict standards and threshold for scientific validity as our comprehensive performance supplements. When choosing your supplements, dosage matters. If ingredients are not included at levels backed by science, you are wasting time and money. Force Factor supplements contain substantiated dosages of key constituents that work to produce powerful results, giving you exactly what you want and none of what you don't. Every Fundamentals formula was purposefully designed to pair with the full line of premium Force Factor supplements, helping you tackle your goals and fully Unleash Your Potential®.