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Dr. Mercola

Quercetin and Pterostilbene, Advanced, 180 Capsules

4.8 · 910 reviews
9,462 ₽

Dietary Supplement Brain & Cognitive Function Immune Support Antioxidant Providing Quality Products Since 2001 Support your seasonal and respiratory health with our advanced duo formula. Quercetin and Pterostilbene Advanced combines two potent antioxidants to support heart and mitochondrial health as well as mental focus, brain and cognitive function, exercise performance and much more.

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Dietary Supplement Brain & Cognitive Function Immune Support Antioxidant Providing Quality Products Since 2001 Support your seasonal and respiratory health with our advanced duo formula. Quercetin and Pterostilbene Advanced combines two potent antioxidants to support heart and mitochondrial health as well as mental focus, brain and cognitive function, exercise performance and much more.

Customer reviews

5.0
verified purchase
Subtle and Powerful

I suffered from loss of energy for years. This antioxidant was prescribed by a nutritionist. After some months of taking, I feel my coginitive function and memory improved. I also feel more energy on the whole so I belive my mitochondians improved as well. Actually, it takes me indeed faster to recover after intense exercise. No smell, easy to swallow, no taste, medium size. Their performance and quality is exemplary as it is Dr. Mercola.

1/7/2024
5.0
verified purchase

Easy to swallow and effective. I believe that the zink capsules that I am taking daily in combination with Dr. Mercola's Quercetin are more easily absorbed by my body, which is extremely important since I suffer from diabetes 1. My immunity has improved, throughout the year I was ill only once from Rotavirus, which I beat in 3 days.

8/3/2024
5.0
verified purchase
3 months of use

One of the most effective immune-support combos I’ve tried. Took it for 3 months during allergy season and noticed reduced sneezing and nasal congestion. The quercetin + pterostilbene mix really works. Perfect for seasonal support. It is an antioxidant and anti inflammation. It has a lot of benefits. The size and taste are fine.

7/26/2025
4.0
verified purchase
Great but it’s too expensive

I’ve been taking this pill for the last 2 months and my CRO level have been maintaining well in the normal level. I have a lot of protein since I am working out and I did have a lot of worries about it. However, I think it is still too expensive to purchase regularly although that’s what I’ve been doing it.

2/19/2024
5.0
verified purchase
Love Mercola stuff, good products

Pure ingredients, top quality, benefits my colds, improve immunity, good size capsule. Antioxidant n anti inflammation. With it was cheaper no taste. Quercetin is importantly for me daily. High performance. Respiratory was protected, wish it was cheaper. Good la k big bottle. I will always buy. Been using it for few years and seen benefits of it. Well done. Big bottle is more worth it! With discounts for Black Friday even better! Must have this in supplements.

9/30/2024
4.0
verified purchase
4 stars because it’s expensive Quercetin and Pterostybene: A Potent Antioxidant Duo

Tried and trusted brand Quercetin and pterostybene are two phytochemicals, or plant-based compounds, that have garnered attention for their potential health benefits, particularly in relation to antioxidant activity and heart health. Quercetin Powerful Antioxidant: Quercetin is a flavonoid found in many fruits, vegetables, and tea. It is a potent antioxidant that helps protect cells from damage caused by free radicals. Heart Health Benefits: Quercetin has been studied for its potential to reduce inflammation, lower blood pressure, and improve blood flow. This may help reduce the risk of heart disease, stroke, and other cardiovascular problems. Other Potential Benefits: Quercetin has also been investigated for its potential to support immune function, reduce allergies, and improve cognitive health. Pterostybene Resveratrol Analogue: Pterostybene is a stilbene compound similar to resveratrol, found in grapes and red wine. It is a potent antioxidant with potential heart health benefits. Anti-inflammatory Effects: Pterostybene has been shown to have anti-inflammatory properties, which may help reduce the risk of chronic diseases. Cholesterol Reduction: Some studies suggest that pterostybene may help lower cholesterol levels, potentially reducing the risk of heart disease.

9/23/2024
5.0
verified purchase
Прекрасно!

Thank you very much for this product, it suited me, I like the packaging, comfortable and stylish, I will order more of these products, and recommend them to all my friends and relatives! good!!

1/21/2026
5.0
verified purchase
최고!

Quality is super! The ingredients are great! Size arranged! What you need! Performance is felt! the product arranged, perfectly packed, the effect is definitely there! I will order more! Just as quickly delivered

11/26/2025
5.0
verified purchase
High quality, though expensive

I've bought several items of thie brand. seems of a high quality, however there is no way to compare the effectiveness with similar brands, as this is much much more expensive usually.

10/27/2025
5.0
verified purchase
Прекрасно!

Super product, I will definitely order it again, I recommend it to everyone, the packaging is of high quality, and the ingredients are excellent. Fast delivery, everything arrived in good condition and was well packaged !!!

9/27/2025