GlyNAC

Key Benefits

• Provides 350 mg glycine and 350 mg N-acetylcysteine per capsule.

• Combines two amino acids in a single formulation.

• Suitable for vegan diets.

• Free from GMOs, common allergens and artificial additives.

GlyNAC combines glycine and N-acetylcysteine (NAC) in a single capsule, delivering a total of 700 mg per serving. These two amino acids are naturally present in the body and are involved in a range of biochemical processes.

Suitable for vegan diets and free from GMOs, allergens, artificial colours, preservatives, and flavours, this formulation keeps its ingredient profile straightforward while maintaining clarity on composition.

vitality PRO places strict quality control at the centre of every product. Each batch undergoes third-party testing to confirm purity, safety, and consistency before it moves into production. When raw ingredients arrive, the brand takes two samples and sends them to Certified Laboratories, an ISO 17025-accredited facility in the United States. One sample is analysed for purity and heavy metals, while the other is assessed for microbiological safety. Only ingredients that meet these defined standards proceed to manufacturing. This rigorous testing process gives you greater confidence in the quality and reliability of every batch.

vitality PRO, founded in 2019 in the North of England by Mike Sherwood, was created to cut through the noise of overhyped supplementation. With more than a decade immersed in health and business, the team saw marketing outpace quality and transparency — and chose a different path. vitality PRO formulates purity-led, longevity-focused supplements, manufactured to high standards and rigorously third-party tested for quality, heavy metals and microbiological safety. Every batch undergoes structured checks to ensure consistency, reliability and traceability. Rather than promise quick fixes, the brand provides clear, research-informed information alongside clean, dependable formulations. Guided by continuous improvement and ISO-accredited processes, vitality PRO acts as a trusted partner in your health journey — helping you make informed choices with confidence and focus on long-term progress.

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.

Glycine, N-Acetyl Cysteine (NAC), Microcrystalline Cellulose, Vegetable Cellulose Capsule Shell (HPMC).

For best results, take 2-3 capsules per day, or as directed by your health care professional.

GlyNAC is best taken on an empty stomach, away from meals, to ensure optimal absorption by avoiding competition for uptake with other amino acids from food

GlyNAC is also a potent antioxidant and may blunt some of the positive effects of resistance or weight training exercise, we therefore recommend that you do not take GlyNAC around these sessions.

To maintain the potency and quality of your GlyNAC supplements, store them in a cool (20°C-25°C), dry place and away from light.