Understanding the interactions, benefits, and safety of combining these two powerful supplements.
We found no documented interaction between Elderberry and Tribulus terrestris 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: The dark purple berry of the black elder tree, traditionally used for colds and flu.
What the research says: Preliminary research suggests it may ease cold or flu symptoms. There's no good evidence for other uses.
In Holitro: Elderberry (475 mg per capsule)
Source: NIH National Center for Complementary and Integrative Health: Elderberry: Usefulness and Safety (updated November 2024)
What it is: A plant sold with claims that it raises testosterone.
What the research says: The few studies on strength or muscle found no benefit.
In Holitro: Tribulus (500 mg per capsule)
Source: 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. 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.
