Quercetin – 60 Capsules extract of Japanese pagoda tree • at least 98% quercetin in the extract • vitamin B1 contributes to the normal function of the heart • food supplement

Description

About L Cell

Ingredients

FAQs

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What makes the capsule format different?

Compare the preparation, daily dose and number of days per pack. Pack weight or capsule count alone won't tell you how two products differ.

• Japanese pagoda tree. The botanical source of the extract in this formula.
• 525 mg of extract, providing 500 mg of quercetin. In two capsules: the full daily dose.
• Zinc. Contributes to the protection of cells from oxidative stress.
• Vitamin B1. Contributes to the normal function of the heart and nervous system.
• Vitamin D. Contributes to the normal function of the immune system.
• Pre-measured contents. Take two capsules with breakfast and swallow with water.
• HPMC shell. Hypromellose capsules contain no gelatine.
• Approximately 30 days per pack. At the recommended daily dose.
• Independent laboratory testing. Check which sample was tested and what the report actually covers.

Prefer an alternative to swallowing capsules? Explore quercetin powder, which mixes into food. The 30 g pack lasts approximately 55–60 days when taken as directed, compared with around 30 days for the capsules.

What is quercetin, and where does this extract come from?

Quercetin is a flavonol, a type of plant flavonoid. It occurs naturally in foods such as apples and onions. This supplement uses Japanese pagoda tree, botanically known as Sophora japonica, as its source.

An extract is a material obtained from a plant. Here, the daily dose contains 525 mg of extract, of which 500 mg is quercetin. One figure measures the entire extract; the other measures a particular substance within it.

This is not 525 mg of quercetin alone. Equally, the 500 mg figure does not represent the weight of every ingredient in the finished supplement. Zinc and vitamins B1 and D3 have their own entries in the table.

When comparing supplements, look at the amount of quercetin in the recommended daily dose, rather than just the largest number beside the extract name. The amount present does not, by itself, tell you how much will be absorbed or guarantee a health outcome.

Why does the formula include zinc and vitamins B1 and D3?

• Quercetin is the botanical component; the added vitamins and mineral have their own authorised functions. Zinc contributes to the protection of cells from oxidative stress. Both zinc and vitamin D contribute to the normal function of the immune system.
• Vitamin B1 contributes to the normal function of the heart and nervous system. It also contributes to normal energy-yielding metabolism. These functions belong to vitamin B1; they cannot automatically be attributed to quercetin.
• Vitamin D: bones and muscles. It contributes to the maintenance of normal bones and normal muscle function. This formula uses vitamin D3. These functions belong to vitamin D and cannot automatically be attributed to the supplement’s main ingredient.
• A daily dose provides 1.5 mg of zinc, 0.165 mg of vitamin B1 and 0.75 µg of vitamin D3. Each supplies 15% of its nutrient reference value (NRV). Reference values differ between nutrients, so an identical percentage does not mean an identical weight.
• The table shows two capsules: the full recommended daily dose. One capsule provides half the listed amounts. Include zinc and vitamins from any other supplements when checking your total intake.
• If zinc is your main reason for choosing a supplement, explore our zinc supplements too. These allow you to compare the mineral's form and amount directly; the principal ingredient here is a quercetin-containing plant extract. This is a way to choose a suitable formula, rather than a recommendation to add more zinc.

Biohacking: food, movement and daily habits

Biohacking uses science, technology and changes to everyday habits to explore how the body and mind function. It can include adjustments to diet, sleep and exercise, meditation, breathing exercises or tracking selected measurements. Supplements are only one part of that wider picture.

What does biohacking involve?

• Food: a varied diet, regular eating habits and an understanding of nutrient intake.
• Sleep and rest: keeping track of sleep duration, bedtimes and time to rest during the day.
• Movement: regular activity that suits your fitness and circumstances.
• Tracking: a diary, app or wearable device to record habits and how they change.

Keeping a record helps you see what has changed in your routine. Alter your diet, exercise and several supplements at once, and it becomes harder to identify what made a difference. Consistency and a clear record of what you take are useful starting points.

Where do supplements fit in?

Compare ingredients, quantities and directions, rather than relying on a product name alone. With L Cell supplements, look at the main ingredients, added vitamins and minerals, powder or capsule format, and laboratory documentation. A varied, balanced diet and a healthy lifestyle remain the foundation.

PraveBio also stocks brands with different specialisms. NoordCode offers functional foods and supplements, including MCT oils, collagen and electrolytes.

Jigsaw Health is an American family business founded in 2005 by Pat Sullivan and his son, Patrick Sullivan Jr. Magnesium and other mineral supplements feature prominently in its range.

BiOptimizers makes food supplements, including enzyme formulas such as the MassZymes digestive enzyme range. Each brand and product has its own composition, so compare the specific formula you are considering.

L Cell develops and manufactures food supplements. The brand identifies its own laboratory in Vilnius, Lithuania, as the place where its formulas are made. That gives customers a traceable production location and a clearer picture of the company behind the range.

The range includes glycine with NAC, botanical extracts containing quercetin or resveratrol, and mineral supplements. Many products come as both powders and capsules. Choose the format that suits your routine, while checking the specific ingredients and daily dose for each pack.

Independent laboratories regularly check declared content and unwanted substances, including heavy metals and mycotoxins. Content testing measures the substances analysed; contaminant testing looks for unwanted impurities. Results apply to the sample and tests identified in the laboratory report.

The brand’s documentation also includes GMP and ISO 22000:2018 certificates issued to Longevita Lab and H Drop B.V. Their stated scope covers the development and sale of food supplements and snack foods. They document defined procedures and management systems; ingredient quantities require separate analytical testing.

In-house development and manufacture

L Cell identifies its own Vilnius laboratory as the site where it develops and makes supplements. You can trace the range beyond the brand name to a specific production location.

Powders or capsules

Many formulas are available in both formats. Choose between mixing into a drink and swallowing capsules, then check each ingredient amount against the recommended daily dose for that particular product.

Independent laboratory testing

Analysis covers declared ingredients and unwanted impurities. The report identifies what was measured and which sample was tested, giving you specific information about the material examined.

GMP and ISO 22000:2018

The published certificates cover the stated scope of development and sales. ISO 22000:2018 concerns food safety management systems; a laboratory analysis provides the separate evidence for ingredient quantities in a tested product.

Storage

• Store in a cool, dry, dark place, out of the reach of young children.
• Close the container after use and protect the contents from moisture. Check the pack for the best-before date.

Quercetin capsule FAQs

Why aren't health benefits listed for quercetin itself?

A research paper and an authorised health claim serve different purposes. Research examines substances under specific conditions. A claim used to sell a food must meet EU rules; the existence of a study alone does not authorise its use.

We do not have an authorised claim for quercetin itself that we can use on this page. We therefore explain its source, the amount in the formula and how to take it. For zinc and vitamins B1 and D, we describe their permitted functions where the conditions are met. Those benefits belong to the individual nutrients and cannot automatically be extended to quercetin or the entire combination.

Does a daily dose contain 525 mg or 500 mg of quercetin?

The full daily dose contains 525 mg of Japanese pagoda tree extract, providing 500 mg of quercetin. The 525 mg figure refers to the extract; 500 mg is the quercetin within it. These are not two separate amounts to add together.

The table therefore lists quercetin beneath the extract as part of it. Zinc and vitamins B1 and D3 are listed separately. When comparing supplements, check whether the amount on the label refers to an extract, a particular substance or the whole blend.

What is quercetin, and why is Japanese pagoda tree listed?

Quercetin is a flavonol within the wider flavonoid family. It occurs in various foods, but this product uses Japanese pagoda tree extract (Sophora japonica). The botanical name identifies the source, rather than another ingredient added alongside quercetin.

For the actual amount, check the product label. The weight of an apple or onion, or a cup of tea, cannot tell you an equivalent dose of this extract. Follow the supplement's own directions.

When should I take quercetin, and how long does the pack last?

Take two capsules daily with breakfast and swallow with water. The table shows the complete daily dose. One capsule provides half the listed quantities.

The pack lasts approximately 30 days when taken as directed. Compare prices per daily dose: a powder's pack weight and a capsule count are not directly comparable.

What is the capsule shell made from, and does it contain gelatine?

The shell is hypromellose, also known as HPMC, and contains no gelatine. L Cell identifies these capsules as vegan. HPMC forms the shell; it is not an additional quantity of quercetin.

The plant extract, zinc and vitamins are inside the capsule and listed in the ingredient table. Distinguish the shell material from the amounts of these ingredients.

Can I open the capsules and mix the contents into food?

The directions are to swallow the capsules with water. Opening them is not part of the stated method of use.

For mixing into food, choose quercetin powder, which comes with its own scoop. When changing formats, compare the recommended doses and ingredients; do not convert a capsule count into an arbitrary kitchen spoonful.

Should I choose powder or capsules?

Powder needs measuring and mixing into food; capsules contain a pre-measured amount. For these two L Cell products, the recommended daily dose provides the same declared amounts: 525 mg of extract, including 500 mg of quercetin, plus zinc and vitamins.

Pack size and preparation differ. The powder lasts approximately 55–60 days at the recommended dose, compared with 30 days for the capsules. See the powder option and choose the format that suits you.

Why are zinc and vitamins B1 and D3 included?

These vitamins and mineral have their own authorised functions. Zinc contributes to the protection of cells from oxidative stress. Zinc and vitamin D contribute to the normal function of the immune system, while vitamin B1 contributes to the normal function of the heart and nervous system.

The full daily dose supplies 15% NRV for each of these nutrients. This explains their contribution to the formula; it does not establish that they multiply quercetin's effects. Include the same nutrients from any other supplements when checking your intake.

Can I take quercetin alongside medication?

Speak to your doctor or pharmacist before you start. L Cell warns of possible interactions with medicines. Advice depends on the particular medicine, its dose and the complete supplement formula; there is no single recommendation for every combination.

Show them the label and a list of any other supplements you take. Do not alter prescribed treatment because of a supplement. Seek individual medical advice during pregnancy or breastfeeding too.

How should I store quercetin?

Keep it in a cool, dry, dark place, out of the reach of young children. Close the container after each use and protect it from moisture.

For powder, use a dry scoop; for capsules, avoid leaving the container open while preparing food. Check your pack for its best-before date and any additional instructions, rather than assuming another product's storage period applies.