QUERCETIN 600mg + VITAMIN C + BIOFLAVONOIDS
Three compounds in one capsule: Quercetin + Vitamin C + Bioflavonoids! Suitable for vegan and vegetarian diets.
VITAMIN C 500mg + CITRUS BIOFLAVONOIDS
CITRUS BIOFLAVONOIDS COMPLEX
COENZYME Q10 200mg + BioPerine®
BLACK GARLIC EXTRACT (10:1) 500mg
RESVERATROL 120mg
REDUCED GLUTATHIONE 250mg
SAMe 200mg
R-ALPHA LIPOIC ACID 300mg
- Quercetin from saphorilla extract.
- Bioflavonoids from orange extract.
- High vitamin C content.
- Suitable for vegans.
Table of contents

What is Quercetin 600mg + Vitamin C + Bioflavonoids?
Quercetin 600mg + Vitamin C + Bioflavonoids by EssentialSeries is a food supplement in vegetarian capsules, made from herbal extracts of Sophora japonica and Citrus aurantium, with vitamin C ascorbic acid.
This food supplement is 100% suitable for vegetarians and vegans.
Quercetin 600mg + Vitamin C + Bioflavonoids properties
The product contains a high content of ascorbic acid (Vitamin C).

Vitamin C
- Vitamin C contributes to normal energy metabolism.
- Vitamin C helps to reduce tiredness and fatigue.
- Vitamin C contributes to the protection of cells against oxidative damage.
- Vitamin C contributes to normal collagen formation for normal skin function.
- Vitamin C contributes to the normal functioning of the immune system.
Quercetin + Vitamin C + Bioflavonoids provides 600mg of Vitamin C per serving!
Why buy it in HSN?
Exclusive formula
The product formula has been developed by our Research and Development experts in the field of food supplements.
All the choice of raw materials and quantities has been selected with precision.

Standardised extracts
Standardisation is the precise determination of the major chemical constituents of a particular botanical extract. This is important as it provides information on the concentration of the product.
This is not a widespread practice in the food supplement market, and calls into question the quality of available herbal extracts as their concentrations are not known.
We have standardised the content of the compounds of greatest interest in the raw materials used in our herbal extracts from which we have developed our product:
- Sophora japonica extract → 95% Quercetin.
- Citrus aurantium extract → 60% Bioflavonoids.
What are you waiting for to try the quality of our food supplement?
Bioflavonoids, what are they?

They are a series of products that occur naturally in low concentrations in fruits and vegetables.
The bioflavonoids contained in our product are obtained from a citrus source (Citrus aurantium), where hesperidin, naringin and naringenin predominate (Panche et al., 2016).

Which products combine Quercetin 600mg + Vitamin C + Bioflavonoids combine with?
Combine Quercetin 600mg + Vitamin C + Bioflavonoids with other products: Soy isoflavones and Cocoa powder!
Bibliographical references
- Bazzucchi, I., Patrizio, F., Ceci, R., Duranti, G., Sgrò, P., Sabatini, S., … Felici, F. (2019). The effects of quercetin supplementation on eccentric exercise-induced muscle damage. Nutrients, 11(1).
- Carr, A. C., & Maggini, S. (2017). Vitamin C and immune function. Nutrients, 9(11).
- Li, Y., Yao, J., Han, C., Yang, J., Chaudhry, M. T., Wang, S., … Yin, Y. (2016). Quercetin, inflammation and immunity. Nutrients, 8(3), 167.
- Panche, A. N., Diwan, A. D., & Chandra, S. R. (2016). Flavonoids: An overview. Journal of Nutritional Science, 5, e47.
- Pérez-Cano, F. J., & Castell, M. (2016). Flavonoids, inflammation and immune system. Nutrients, Vol. 8.
Nutritional FactsQUERCETIN 600mg + VITAMIN C + BIOFLAVONOIDS - 120 veg caps |
| daily doseper serving |
| Serving size: 2 veg caps | ||
| daily dose: 2 veg caps | ||
| Servings per container: 60 | ||
| Daily amount | |||
|---|---|---|---|
| Quercetin | 600mg | ||
| Sophora japonica bud extract (20:1) (95% quercetin) | 631.5mg | ||
| Vitamin C (as ascorbic acid) | 600mg | ||
| Bitter orange fruit extract (12:1) (60% citrus bioflavonoids) (Citrus aurantium) | 120mg | ||
| equivalence of fruit | 1440mg | ||
| Citrus Bioflavonoids | 72mg | ||
| NRVs (Nutrient Reference Values) established in Regulation (EU) 1169/2011 of 25 October 2011. †† NRVs are not established on this occasion. |
Ingredients
Quercetin (from bud of Sophora japonica), ascorbic acid (vitamin C), vegetable capsule [glazing agent (hydroxypropyl methyl cellulose)], bitter orange extract (12:1, from Citrus aurantium fruit, 60% bioflavonoids), anti-caking agents (magnesium salts of fatty acids).
Warnings
Store in a cool (below 25°C), dry and dark place. Do not exceed the stated recommended daily dose. Keep out of reach of the smallest children. Nutritional supplements should not be used to replace a balanced diet. It is necessary to maintain a varied and balanced diet and a healthy lifestyle.
How to take QUERCETIN 600mg + VITAMIN C + BIOFLAVONOIDS - 120 veg caps
Take 2 vegetable capsules, 1 time a day, preferably with a meal.
The product reviews and opinions published reflect only the customers’ views and experiences. HSN does not verify or endorse such comments or claims, and is not responsible for the content provided in the reviews. Statements regarding food supplements have not been evaluated by the EFSA (European Food Safety Authority) and are not intended to diagnose, treat, cure, or prevent any disease or medical condition.
The product reviews and opinions published reflect only the customers’ views and experiences. HSN does not verify or endorse such comments or claims, and is not responsible for the content provided in the reviews. Statements regarding food supplements have not been evaluated by the EFSA (European Food Safety Authority) and are not intended to diagnose, treat, cure, or prevent any disease or medical condition.
A satisfied customer says:
Very good
Monypeny 18/04/2022
Quality/price the best... I suffer from many allergies and no longer take any antihistamines, and its high content of bioflavonoids and vitamin C make it an excellent antioxidant, it is also very noticeable on the skin.
Show original languageA critical customer says:
Bad mix
Dudas 04/07/2021
I have taken food and supplements separately to get the same ingredients but putting them all together in one pill is not good for whatever reason, they give gas (I guess because of the flavonoids).
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Very positive.
David González 05/11/2025
Unbeatable value for money, it works very well for me and after a few weeks I already noticed its effect.
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Essential
Andreia 29/09/2025
Very satisfied! Complete formula that supports the body's natural defenses and improves balance.
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Essential
Tiago 29/09/2025
Top quality product! Complete formula that contributes to immunity, cellular health and general balance.
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Quality
Andreia 29/09/2025
Top quality product! Complete formula that contributes to immunity, cellular health and general balance.
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Very good
Tiago 29/09/2025
I recommend it! Effective supplement for immunity, energy and general health. Visible results in just a few weeks.
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