Last updated: · Originally published August 16, 2026 · Published by Eternal Elixir
Edited by Elaine Fletcher, Researcher
Disclosure: Eternal Elixir makes supplements that compete with Quicksilver Scientific, including a glutathione capsule and an NMN capsule we compare below. Eternal Elixir makes Reduced L-Glutathione 2000mg, and it is our pick for buyers who want glutathione in capsule form. This review is based on Quicksilver Scientific’s own labels, product pages and policies, read in September 2026, and on published research. We did not test Quicksilver products ourselves. Here is how we write and review content.
This Quicksilver Scientific review answers the questions people ask before they spend $45 on a small pump bottle: is the company reputable, what is actually in the bottle, is the liposomal liquid worth the price against a capsule, and what happens if it arrives warm or you want your money back? We worked through the labels, the prices, the shipping and return rules and the research on liposomal delivery.
Quick answer
Quicksilver Scientific is a long-running liposomal supplement company in Louisville, Colorado, selling since 2006 and led by its founder, Christopher Shade, PhD. Its best-known product, Liposomal Glutathione, gives 100 mg of glutathione per 1 mL serving at $45 for 50 servings. It is a well-made liquid, but it costs $0.90 per 100 mg of glutathione, needs refrigeration, and cannot be returned once shipped.
If you want glutathione by the milligram, our pick is Eternal Elixir Reduced L-Glutathione 2000mg: 2,000 mg per two-capsule serving, 60 capsules for $39.99, about $0.07 per 100 mg, stored at room temperature. Its serving is twice the highest daily amount used in the oral glutathione trials below.
Quicksilver Scientific review 2026: the short version
- Company: Quicksilver Scientific, Inc., Louisville, Colorado. Its site says it has made liposomal supplements since 2006 and names Christopher Shade, PhD, as founder and CEO.
- Format: mostly pump-dosed liposomal liquids held in the mouth before swallowing, plus capsules, protocol bundles and Quinton mineral products.
- Flagship: Liposomal Glutathione, $45.00, 50 servings of 1 mL (2 pumps), each with 100 mg of glutathione and 75 mg of phosphatidylcholine.
- Customer rating: 4.6 out of 5 from 185 reviews on the Liposomal Glutathione page when we checked in September 2026.
- Testing: the FAQ says every product goes through third-party testing for pesticides, herbicides, solvents and heavy metals. Public certificates are posted only for its hemp line.
- Catch: refrigerated products cannot be returned and are excluded from the 45-day satisfaction guarantee.
Who is Quicksilver Scientific, and who owns it?
Quicksilver Scientific grew out of its founder’s own work. The company’s story page says Christopher Shade, PhD, started making liposomes to improve glutathione absorption for his own health, and that the company has been selling liposomal supplements since 2006. His biography on the site lists a 2005 PhD in environmental science and aquatic chemistry from the University of Illinois at Urbana-Champaign, and a career focused on mercury chemistry and glutathione.
The site names Dr. Shade as founder and CEO and lists the company as Quicksilver Scientific, Inc., based in Louisville, Colorado. We found no statement of outside ownership on its site. Its newsroom says it received an NSF/ANSI 455-2 dietary supplement GMP certificate in June 2025 and was named a 2026 Inc. 5000 honoree. Much of its business runs through health practitioners, who order its products and protocols for their patients.
If you are comparing several premium brands, the same method appears in our Codeage review, our Thorne review and our Life Extension review.
What Quicksilver Scientific sells
Its US store listed 153 products when we checked. They fall into four groups:
- Single-ingredient liposomal liquids such as Liposomal Glutathione ($45.00), NAD+ Gold with NMN ($45.00 for 30 mL, $68.50 for 50 mL) and Vitamin C ($33.50).
- Capsules that use what the company calls a self-emulsifying delivery system.
- Protocol bundles, led by the two-step PushCatch liver bundle at $133.00, which pairs its Liver Sauce bitters blend with Ultra Binder. The advanced PushCatch systems cost $590.50 to $950.00.
- Quinton marine mineral products, which sit apart from the rest of the range.
Because so much of the range is sold as protocols, the realistic spend for many buyers is a bundle, not one $45 bottle.
Liposomal Glutathione: what is in the bottle
The supplement facts panel lists 100 mg of Opitac glutathione and 75 mg of phosphatidylcholine from sunflower lecithin per 1 mL serving (2 pumps), with 50 servings in the bottle. The other ingredients are glycerin, water, ethanol, tocofersolan, medium-chain triglycerides, natural flavorings and mint oil. It comes in lemon mint and cacao mint, both $45.00. The company’s FAQ says ethanol is present in all of its products at less than 25%.
The directions say to hold 2 to 4 pumps in the mouth for 30 to 90 seconds before swallowing, on an empty stomach at least 10 minutes before meals, repeating to the desired amount. The bottle ships with ice packs, should be refrigerated on arrival and used within 30 days of opening.
That 100 mg figure surprises people used to 500 mg or 1,000 mg capsules. Quicksilver’s position is that absorption starts in the mouth, so fewer milligrams are needed. That claim is the center of the value question, so the next two sections test it with arithmetic and with research.
Liposomal liquid vs capsules: the cost comparison
The table puts two Quicksilver liquids next to our two capsules, as of Sep 2026. Cost is shown per label serving and per 100 mg of the active ingredient, because each tells a different story.
| Product | Format | Active per serving | Servings | Price | Cost per serving | Cost per 100 mg of active |
|---|---|---|---|---|---|---|
| Eternal Elixir Reduced L-Glutathione 2000mg | Capsules, room temperature | 2,000 mg glutathione (2 capsules) | 30 | $39.99 | $1.33 | $0.07 |
| Quicksilver Liposomal Glutathione | Liposomal liquid, refrigerated | 100 mg glutathione (1 mL) | 50 | $45.00 | $0.90 | $0.90 |
| Eternal Elixir NMN 500mg | Capsules, room temperature | 500 mg NMN (1 capsule) | 90 | $49.99 | $0.56 | $0.11 |
| Quicksilver NAD+ Gold (30 mL) | Liposomal liquid, refrigerated | 50 mg NMN plus 50 mg TMG (1 mL) | 30 | $45.00 | $1.50 | $3.00 |
Read the columns together. Per label serving, Quicksilver’s glutathione is cheaper than ours ($0.90 against $1.33) because its serving is so small. Per 100 mg of glutathione, our capsule costs about a thirteenth as much. For NMN the gap is wider: NAD+ Gold costs $3.00 per 100 mg of NMN against $0.11 for our capsule, which holds ten times more NMN per serving. Whether the liquid’s premium is worth paying depends on how much better it is absorbed, and that is what the research has to answer.
Add Reduced L-Glutathione 2000mg to cart · $39.99
What the research says about liposomal and oral glutathione
Four human studies frame the question. None of them tested Quicksilver’s own product, and we found no published trial that did.
| Study | Who took part | What they took | What happened |
|---|---|---|---|
| Richie 2015, European Journal of Nutrition | 54 non-smoking adults | Standard oral glutathione, 250 mg or 1,000 mg a day, or placebo, for 6 months | Blood glutathione rose at both doses. At 1,000 mg, levels in red cells, plasma and lymphocytes were 30 to 35% higher at 6 months, and fell back after a month off. |
| Sinha 2018, European Journal of Clinical Nutrition | 12 healthy adults | Liposomal glutathione, 500 mg or 1,000 mg a day, for 1 month (pilot, no placebo) | Whole-blood glutathione rose up to 40% by 2 weeks. The authors noted the small sample limited any comparison between doses. |
| Solnier 2026, Antioxidants | 14 healthy adults | Single doses of standard (500 mg), liposomal and micellar (300 mg) glutathione, crossover | The micellar form gave about 2.49 times the blood exposure of standard glutathione. The advantage belonged to the micellar form, not the liposomal one. Several authors work for the maker of the micellar formula. |
| Purpura 2024, European Journal of Nutrition | 27 adults | 500 mg of liposomal or standard vitamin C, or placebo, single doses | Liposomal vitamin C gave 21% more plasma exposure than standard vitamin C. This was vitamin C, not glutathione. |
Evidence level: moderate that oral glutathione, standard or liposomal, can raise blood glutathione over weeks to months at 250 to 1,000 mg a day. Early for liposomal delivery giving a large advantage for glutathione specifically. What has not been shown: that 100 to 200 mg of glutathione held in the mouth matches a larger swallowed dose, or any health outcome from either format.
That cuts both ways. The trials used 250 to 1,000 mg a day, so 100 mg a day sits below every tested amount unless the liquid is absorbed far better. Our capsule’s 2,000 mg serving sits above every tested amount, at twice the highest trial dose. If you want to match the best-studied range, 1,000 mg a day is the amount the six-month trial tested.
See Reduced L-Glutathione 2000mg · $39.99
Are Quicksilver Scientific supplements third-party tested?
The company’s FAQ says it runs third-party lab testing on all of its products to confirm the absence of pesticides, herbicides, solvents and heavy metals, and that it tests against the European food allergen panel (not corn). Product pages carry badges including “tested gluten free”, “tested allergen-free”, “tested non-GMO” and a GMP facility mark.
What you cannot do is read a lot result for its liposomal liquids. The certificates of analysis page covers its hemp and CBD products only. If lot-level results matter to you, ask the company for the certificate for the lot you receive. That is good advice for any brand, including ours.
What customers say about Quicksilver Liposomal Glutathione
The Liposomal Glutathione page showed 4.6 out of 5 from 185 reviews when we checked. Among the reviews shown on the page, one five-star review praised the pump and the taste and described holding the liquid under the tongue for 90 seconds, while a one-star review objected to the natural flavorings in the ingredients. A rating on the seller’s own site is a useful signal, but it is not an independent test of the product.
Shipping, cold storage and returns
- Shipping: free on consumer orders over $99. Orders can take up to 3 business days to process, and standard delivery takes 3 to 7 business days after that.
- Cold chain: heat-sensitive products, including Liposomal Glutathione and NAD+ Gold, ship with an ice pack. The company says they are stable at room temperature for 5 to 7 days, so a warm arrival does not mean the product is damaged. A spoiled liposomal liquid looks thick, cloudy or separated.
- Returns: new, unused products bought on its site can be returned within 30 days, with the buyer paying return shipping. Refrigerated products, and bundles that contain them, cannot be returned.
- Guarantee: a 45-day satisfaction guarantee covers purchases from its site or authorized US sellers, but it does not apply to refrigerated products.
In practice, the glutathione and NAD+ liquids most people buy first are the products with the least return protection. Factor that in if you are trying one for the first time.
Strengths and trade-offs
What Quicksilver does well: clear supplement facts panels with named ingredients, a founder with a long research focus on glutathione chemistry, a large practitioner network, pleasant flavors for an ingredient that usually tastes of sulfur, and published allergen and contaminant testing policies.
The trade-offs: a high cost per milligram, low milligram amounts per serving compared with the trials, the need to refrigerate and finish a bottle within 30 days, pump dosing that is less exact and less portable than a capsule, no returns on cold products, and no public lot results for the liquids.
Who should buy Quicksilver, and who should buy capsules
Quicksilver makes sense if you cannot swallow capsules, a practitioner has put you on one of its protocols, or you specifically want a sublingual liquid and accept paying for the format.
Capsules make more sense if you want the most milligrams per dollar, travel often, want a bottle that lives in a drawer, or are building a daily routine where per-serving costs add up. That is where our range fits. Reduced L-Glutathione 2000mg lists reduced glutathione, rice flour and a cellulose capsule, nothing else, at 2,000 mg per two-capsule serving for $39.99. Our product page states that this exact product has not been clinically tested, and its serving is twice the highest trial dose, so it is a choice for people who want a high milligram amount rather than a studied one. NMN 500mg gives 500 mg per capsule, 90 capsules for $49.99, against 50 mg per serving in NAD+ Gold.
Buying more than one bottle lowers the price: two save 10%, three save 15% and five save 20%. Orders over $100 ship free in the US, our capsules need no refrigeration, and every order carries a 30-day money-back guarantee.
For the wider category, our glutathione supplement comparison ranks six products by dose and cost, and our liposomal NMN vs capsules comparison runs the same format test for NMN. The NAD+ booster guide covers NMN, NR and NAD+ products, and our TUDCA comparison and liver supplement guide cover the capsule side of liver support. TUDCA 500mg comes in 60-capsule bottles at one capsule per serving.
Frequently asked questions about Quicksilver Scientific
Is Quicksilver Scientific reputable?
By the markers you can check, yes. It has sold liposomal supplements since 2006, publishes full supplement facts panels, states a third-party testing policy for pesticides, herbicides, solvents and heavy metals, and says its manufacturing received an NSF/ANSI 455-2 GMP certificate in June 2025. The debate around the brand is less about quality than about whether small liposomal doses justify the price.
Are Quicksilver supplements third party tested?
The company says it runs third-party lab testing on all of its products for pesticides, herbicides, solvents and heavy metals, and tests against the European allergen panel. It publishes lot certificates only for its hemp and CBD line, so for a liposomal liquid you would need to ask for the certificate for your lot.
Who owns Quicksilver Scientific?
The company’s site names Christopher Shade, PhD, as founder and CEO, and lists the business as Quicksilver Scientific, Inc., in Louisville, Colorado. We found no statement of outside ownership on its site.
What are people saying about Quicksilver Scientific Liposomal Glutathione?
Its product page showed 4.6 out of 5 from 185 reviews when we checked in September 2026. Reviews shown on the page praise the pump and the taste, and at least one objects to the natural flavorings. The practical complaints to expect are the need to refrigerate, the 30-day window after opening and the lack of returns on cold products.
Does Quicksilver Scientific need cold storage?
Several products do, including Liposomal Glutathione and NAD+ Gold. They ship with an ice pack, should be refrigerated on arrival, and the company says they are stable at room temperature for 5 to 7 days. Liposomal Glutathione should be used within 30 days of opening. Capsules avoid this entirely.
Is liposomal glutathione better than capsules?
Not proven. Standard oral glutathione raised blood glutathione in a six-month trial at 250 to 1,000 mg a day, and a small liposomal pilot saw similar rises at 500 to 1,000 mg. No trial we found shows that 100 mg of liposomal glutathione matches a larger capsule dose. Per 100 mg of glutathione, Quicksilver’s liquid costs $0.90 and our capsule about $0.07.
How do you take Quicksilver Liposomal Glutathione?
The label says to hold 2 to 4 pumps in the mouth for 30 to 90 seconds before swallowing, on an empty stomach at least 10 minutes before meals, and to repeat to the desired amount. If you are pregnant, breastfeeding or planning a pregnancy, the label says to consult your physician first, and anyone taking prescription medicines should talk to their doctor before adding a supplement.
Verdict: is Quicksilver Scientific worth it?
Quicksilver Scientific is a legitimate, long-established brand with clear labels and a real focus on liposomal delivery. It is worth it if you need a liquid, want to follow a practitioner’s protocol, or value the taste and format enough to pay about $0.90 per 100 mg of glutathione and keep the bottle in the fridge.
If you want glutathione or NMN by the milligram, capsules give you far more for the money. Our pick for that buyer is Eternal Elixir Reduced L-Glutathione 2000mg: 2,000 mg per serving, 60 capsules for $39.99, room-temperature storage and a 30-day money-back guarantee. Remember that its serving is above the doses the trials tested.
More guides: for how label doses compare with trial doses across the category, see our supplement dose gap report. Our NMN supplement comparison and methylene blue evidence guide apply the same dose-first approach, and our Methylene Blue Capsules 10mg are another capsule option in the range. Browse all our supplement guides, the Eternal Elixir blog or the full shop.
Sources
- Richie JP Jr, Nichenametla S, Neidig W, et al. (2015). Randomized controlled trial of oral glutathione supplementation on body stores of glutathione. European Journal of Nutrition. PMID 24791752
- Sinha R, Sinha I, Calcagnotto A, et al. (2018). Oral supplementation with liposomal glutathione elevates body stores of glutathione and markers of immune function. European Journal of Clinical Nutrition. PMID 28853742
- Solnier J, Du M, Zhang Y, et al. (2026). A targeted metabolomic assessment of oral glutathione bioavailability and safety in humans: a randomized crossover clinical trial. Antioxidants. PMID 41897500
- Purpura M, Jäger R, Godavarthi A, Bhaskarachar D, Tinsley GM. (2024). Liposomal delivery enhances absorption of vitamin C into plasma and leukocytes: a double-blind, placebo-controlled, randomized trial. European Journal of Nutrition. PMID 39237620
- Quicksilver Scientific pages, read September 2026: Liposomal Glutathione, NAD+ Gold, FAQ, shipping, return and guarantee policy, storage guidelines, our story, founder biography and newsroom.
- Eternal Elixir product pages: Reduced L-Glutathione 2000mg and NMN 500mg.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
