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GlyNAC

€29.72
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1

Due to high demand: only limited stock remaining in the EU warehouse

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Product description
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.
Why vitality PRO is Healf
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.
Ingredients
Glycine, N-Acetyl Cysteine (NAC), Microcrystalline Cellulose, Vegetable Cellulose Capsule Shell (HPMC).
Suggested use
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.

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.

Reviews

  • 4 months ago

    A top quality NAC and

    A top quality NAC and glycine product that actually smells how it should, unlike many others that have no odour (poor quality?). I find it very strong and sometimes cycle it.

    MARK S.Verified Buyer

The Healf Promise

Rated 4.8 (Excellent) based on 13,000+ reviews on Trustpilot

Dillon Jagatia

A comprehensive approach to wellbeing

Healf has impressed me with its comprehensive approach to wellbeing. Their commitment to natural ingredients and cutting-edge technology is evident. From vitamins and supplements to healthy snacks and cooking essentials, they've curated a diverse range of options to cater to various health needs.

Jesse Hansen-Bartel

Top-tier products

If you're serious about wellbeing, you need Healf. Their products are top-tier and the customer service team has been super attentive!

Mayah

One of the best wellbeing websites I've come across.

Healf is one of the best wellbeing websites I've come across. It's nice to know that they thoroughly check the products they sell so you know you are getting good quality stuff. Highly recommend.

Lydia Free

The best wellbeing website…

The best health and wellbeing website in the UK. The range of products is fantastic, even on hard to reach USA products. I love the subscription service too. I'd be lost without this website.

Alex

Amazing!

Healf isn't just another wellbeing brand. They really get it. The products are fantastic, and the support is always so personal and genuine!

Janet

Great products, service, and customer support

Healf have a great range of wellbeing products not available elsewhere in the UK. They are competitively priced as one-off, but even better if you take up the 'subscription' which is super flexible too. I'd have no hesitation in recommending Healf.

S Jones

I love Healf

It's the only place I get really decent health and wellbeing brands, particularly US brands. I've bought a Pvolve set, lots of Skinny Confidential stuff, Thorne supplements etc., the really great stuff that's impossible to get otherwise.

Dillon Jagatia

A comprehensive approach to wellbeing

Healf has impressed me with its comprehensive approach to wellbeing. Their commitment to natural ingredients and cutting-edge technology is evident. From vitamins and supplements to healthy snacks and cooking essentials, they've curated a diverse range of options to cater to various health needs.

Jesse Hansen-Bartel

Top-tier products

If you're serious about wellbeing, you need Healf. Their products are top-tier and the customer service team has been super attentive!

Mayah

One of the best wellbeing websites I've come across.

Healf is one of the best wellbeing websites I've come across. It's nice to know that they thoroughly check the products they sell so you know you are getting good quality stuff. Highly recommend.

Lydia Free

The best wellbeing website…

The best health and wellbeing website in the UK. The range of products is fantastic, even on hard to reach USA products. I love the subscription service too. I'd be lost without this website.

Alex

Amazing!

Healf isn't just another wellbeing brand. They really get it. The products are fantastic, and the support is always so personal and genuine!

Janet

Great products, service, and customer support

Healf have a great range of wellbeing products not available elsewhere in the UK. They are competitively priced as one-off, but even better if you take up the 'subscription' which is super flexible too. I'd have no hesitation in recommending Healf.

S Jones

I love Healf

It's the only place I get really decent health and wellbeing brands, particularly US brands. I've bought a Pvolve set, lots of Skinny Confidential stuff, Thorne supplements etc., the really great stuff that's impossible to get otherwise.

Frequently asked questions

How do we curate our products?

Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.

Do you have resources on how to enhance wellbeing?

The Healf Source offers detailed insights into different aspects of wellbeing, as well as guidance, research, recipes, and more to help you invest in your personal wellbeing journey. You can also subscribe to our weekly newsletters for the latest updates at Healf and in the wellbeing industry. Subscribe via the sign-up block at the bottom of this page.


How can I find out more about the ingredients in a product?

We love people who check ingredients as carefully as we do, so you'll find detailed information about the ingredients used on every product page (where applicable). If you see something you'd like to flag with us or have additional questions, please don't hesitate to get in touch—we'd love to hear from you.

Healf Curation Process™

Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.

Our approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.

Each product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.

By collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.