Quick answer: glutathione is one of the best cases for a liposomal supplement, because regular oral glutathione is poorly absorbed in some studies, while a 2018 pilot study found that liposomal glutathione raised body stores within a month. When shopping in Canada, look for an NPN, a clear dose of reduced glutathione per serving (studies used 500 to 1,000 mg a day), the phospholipid source and the price per serving. Talk to a health professional before starting, especially if you take medication.
What is glutathione?
Glutathione is a small molecule made of three amino acids: glutamate, cysteine and glycine. Your body makes it in almost every cell, with especially high levels in the liver. It is often called the body’s “master antioxidant” because it neutralises free radicals, helps recycle vitamins C and E, and takes part in detoxification reactions in the liver.
Glutathione levels tend to be lower with ageing, smoking, heavy alcohol use and some chronic illnesses. Whether supplementing improves health outcomes in these situations is still being studied.
Why the liposomal form matters for glutathione
Glutathione is a peptide, and digestive enzymes can break peptides apart before they are absorbed. The research on regular oral glutathione is mixed:
- Allen and Bradley, 2011 (Journal of Alternative and Complementary Medicine): 1,000 mg a day of regular oral glutathione for four weeks did not change markers of oxidative stress in healthy adults.
- Richie and colleagues, 2015 (European Journal of Nutrition): 250 or 1,000 mg a day for six months did increase body glutathione stores, suggesting that longer use of regular glutathione may work.
- Sinha and colleagues, 2018 (European Journal of Clinical Nutrition): in a Penn State pilot study, liposomal glutathione at 500 or 1,000 mg a day raised glutathione levels in blood within one to two weeks and improved some markers of immune function over one month.
The takeaway: liposomal glutathione appears to work faster than regular glutathione, but the studies are small. For the general science, read Liposomal Absorption Explained.
What to look for in a liposomal glutathione
1. An NPN from Health Canada
Every natural health product legally sold in Canada must carry an eight-digit Natural Product Number. Search it in the Licensed Natural Health Products Database (LNHPD) to check the approved dose and warnings. Products shipped directly from overseas sellers often have no NPN.
2. Reduced glutathione (GSH) and a clear dose
Look for “reduced glutathione” or “L-glutathione (reduced)” and the amount per serving. Studies used 250 to 1,000 mg a day. Some products quote “liposomal complex” weight instead of the actual glutathione content, which makes the dose look larger than it is.
3. Format
- Liquids and gel sachets are the formats used in most liposomal research. Glutathione has a sulphur taste, so flavouring matters.
- Capsules are easier to take and travel well, but check that the brand explains how liposomes are formed and protected in a dry capsule.
4. Phospholipid source
Sunflower lecithin is common and suits people avoiding soy. Soy lecithin is cheaper but is a priority allergen in Canada.
5. Testing and transparency
A certificate of analysis or third-party testing for content and contaminants is a good sign.
6. Price per serving
Divide the price by the number of servings at the dose you plan to take. Premium liquid products can cost more than $3 a day.
Liposomal glutathione options sold in Canada
The following are examples of glutathione products available through Canadian retailers and brand websites in 2026. Inclusion is not an endorsement; check the NPN, current price and label yourself before buying.
| Product | Format | Notes |
|---|---|---|
| Cymbiotika Liposomal Glutathione | Liquid gel sachets | Premium price (around $100 to $115 per month on cymbiotika.ca); subscription discounts; flavoured |
| Codeage Liposomal Glutathione | Vegetable capsules, 250 mg per capsule | Sold on iHerb Canada; capsule convenience |
| Natural Factors Glutathione LipoMicel Matrix | Softgels | Canadian brand; uses a micellar delivery system (LipoMicel), which is related to but not the same as liposomes |
Not sure you need glutathione specifically? Compare other options in Best Liposomal Supplements in Canada.
Alternatives to liposomal glutathione
- N-acetylcysteine (NAC): provides cysteine, the building block that most limits how much glutathione your body makes. It is inexpensive and well studied, but has its own precautions; ask a pharmacist.
- Food: sulphur-rich foods such as garlic, onions and cruciferous vegetables, and adequate protein, support the body’s own glutathione production.
- Lifestyle: not smoking, limiting alcohol, regular exercise and enough sleep support normal antioxidant defences.
Safety
- Oral glutathione was well tolerated in the studies above, with occasional bloating or loose stools.
- People with asthma should talk to a doctor first: inhaled glutathione has triggered bronchospasm in some asthma patients.
- There is little safety data for pregnancy and breastfeeding.
- Ask your oncologist before taking antioxidants during chemotherapy or radiation.
- Glutathione is widely marketed for skin lightening. Health Canada has warned consumers about unauthorised injectable skin-lightening products, some of which contain glutathione. Avoid injectables that are not administered by a licensed health professional.
Frequently asked questions
How long does liposomal glutathione take to work?
In the 2018 pilot study, blood glutathione levels rose within one to two weeks. Whether you notice any difference in how you feel is another matter; there is little evidence for noticeable effects in healthy people.
Should I take it on an empty stomach?
Many brands suggest an empty stomach, but follow the label of your product.
Does glutathione lighten skin?
Evidence for oral glutathione and skin tone is limited and inconsistent. In Canada, skin-lightening claims are not part of standard approved claims for oral glutathione products.
Sources
- Sinha R, et al. Oral supplementation with liposomal glutathione elevates body stores of glutathione and markers of immune function. European Journal of Clinical Nutrition, 2018.
- Richie JP Jr, et al. Randomized controlled trial of oral glutathione supplementation on body stores of glutathione. European Journal of Nutrition, 2015.
- Allen J, Bradley RD. Effects of oral glutathione supplementation on systemic oxidative stress biomarkers in human volunteers. Journal of Alternative and Complementary Medicine, 2011.
- Health Canada. Licensed Natural Health Products Database; consumer advisories on unauthorised skin-lightening products.
Disclosure: some links on Liposomal.ca may become affiliate links, which means we may earn a commission at no extra cost to you. See our affiliate disclosure. This article is for general information only and is not medical advice. See our medical disclaimer.
