Key Benefits 

• Feel ready for anything—Vitamin C, D, and Zinc help maintain the normal function of your immune system.

• 450mg of NAC per serving for everyday antioxidant support.

• EpiCor® dried yeast fermentate complex, inspired by nature and research.

• Elderberry extract and quercetin, carefully chosen for your daily routine.

Start each day with confidence. PureDefense by Pure Encapsulations brings together a thoughtful blend of nutrients and plant extracts, including Vitamin C, Vitamin D, and Zinc—each contributing to the normal function of your immune system.

Every two-capsule serving delivers 450 mg of N-acetylcysteine (NAC), plus EpiCor® dried yeast fermentate complex, Elderberry fruit extract, and quercetin. With 1000 IU (25 µg) of Vitamin D3 in every serving, PureDefense fits seamlessly into your daily wellness routine.

Pure Encapsulations was founded on a commitment to superior quality and integrity, driven by the belief that what’s inside matters most. For over 30 years, they have been at the forefront of the supplement industry, delivering precisely formulated products using the highest-grade ingredients and rigorous scientific validation. Known for their purity, they avoid unnecessary additives and common allergens, earning the trust of healthcare professionals as the #1 recommended brand. Their dedication goes beyond supplements, embracing sustainability through responsible sourcing and reducing environmental impact. Pure Encapsulations is not just about exceptional products, it's about supporting health and the planet with a focus on transparency, quality, and innovation.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

N-Acety-L-Cysteine (Free-Form), Vitamin C (as Ascorbic Acid), Epicor® Dried Yeast Fermentate Complex (from Saccharomyces Cerevisiae), Elderberry (Sambucus nigra) Fruit Extract, Quercetin, Zinc (as Zinc Citrate), Vitamin D3 (as Cholecalciferol) (1000 IU), Antioxidant (Ascorbyl Palmitate), Vegetarian Capsule (Hydroxypropyl Methylcellulose)

As a food supplement, take 2 capsules, twice daily, with meals, or as directed by a healthcare professional.

Additional Information:

Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.

We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.