Understanding the interactions, benefits, and safety of combining these two powerful supplements.
We found no direct interaction between Biotin and Melatonin in the sources below, but they share a caution.
Both have a note about anti-seizure medicines.
What it is: A B vitamin that helps turn the food you eat into energy.
What the research says: It's widely sold for hair, skin and nails, but there's little evidence for that. A few small studies found harder nails in people with brittle nails.
In Holitro: Biotin 5000mcg (5000 mcg per capsule)
Source: NIH Office of Dietary Supplements: Biotin: Fact Sheet for Consumers (updated January 2021)
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)
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 and delivered daily in our Sleep Pack — one less bottle to manage.
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