Understanding the interactions, benefits, and safety of combining these two powerful supplements.
We found no documented interaction between Melatonin and Quercetin in the sources below. That isn't proof the combination is right for you: check each one's cautions, and ask your pharmacist if you take medication.
What it is: A slow-release form of melatonin, the hormone the brain makes in the dark to set your sleep-wake clock.
What the research says: Melatonin may help with jet lag and some circadian sleep problems. Sleep-medicine guidelines say there isn't enough evidence to recommend it for chronic insomnia.
Source: NIH National Center for Complementary and Integrative Health: Melatonin: What You Need To Know (updated May 2024)
What it is: A plant compound found in apples, onions and tea; the most common flavonoid in the diet.
What the research says: It hasn't been shown to treat any disease. Its anti-inflammatory effects come from lab studies; in athletes, any performance benefits were small.
In Holitro: Quercetin (500 mg per capsule)
Sources: Memorial Sloan Kettering Cancer Center, About Herbs: Quercetin (updated October 2023); NIH Office of Dietary Supplements: Dietary Supplements for Exercise and Athletic Performance (updated March 2021)
Check with your doctor or pharmacist, especially if you take medication.
Check your stack — freeEducational information only, not medical advice. This reflects general ingredient overlap, not a personalized safety review. Always check with your doctor or pharmacist before combining supplements, especially if you take medication, are pregnant or nursing, or manage a health condition. These statements have not been evaluated by the FDA.
Balancing dosages across multiple different bottles is risky, inefficient, and expensive. Melatonin SR is already lab-dosed in our Sleep Pack, and Quercetin is in our Antioxidant Pack — either way, that’s one less bottle to manage.
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