Understanding the interactions, benefits, and safety of combining these two powerful supplements.
We found no documented interaction between Green coffee extract and Melatonin 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: An extract of unroasted coffee beans, rich in chlorogenic acid.
What the research says: Small, short trials found modest drops in body weight (about 1 kg), blood pressure, cholesterol and fasting blood sugar.
In Holitro: Green Coffee Extract (500 mg per capsule)
Sources: PubMed review: Chlorogenic acid in green coffee on body weight: meta-analysis (2023) (updated September 2023); PubMed review: Green coffee bean extract and cardiovascular risk factors: meta-analysis (2021) (updated October 2026)
What it is: A hormone the brain makes in the dark that helps set your sleep-wake clock.
What the research says: It 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. Taking too much of one can blunt the absorption of the other.
Holitro completely solves this. We combine synergistic ingredients into one perfectly dosed daily pack, scientifically formulated for maximum absorption.
