A manufacturing additive that keeps powder from clumping so each capsule gets an even fill.
Generic label for anti-caking ingredients. Usually silicon dioxide, magnesium stearate, stearic acid, or rice flour. The specific one isn't always disclosed.
No. Despite internet myths, magnesium stearate at supplement levels is safe. Your body handles it without issue. It's in most supplements.
No. Studies show flow agents at standard levels don't meaningfully affect ingredient absorption.
Click through to the studies bar for the evidence base.
See the dosing guide below.
Compare formats before buying.
Some ingredients build up over weeks. Others act fast.
The compound effect of consistent dosing.
Check the cautions section if you have a pre-existing condition.
Some ingredients you feel. Others just work in the background.
Marketing. 'No fillers' is a selling point for some brands. They use other techniques like larger capsules or manual filling.
Yes. You consume far more silica from normal foods (beer, grains, green beans) than from a supplement's flow agent.
Extremely unlikely with standard flow agents. If you react to many different supplements, it's more likely the active ingredients.
Reduces friction between powder particles, improving flow characteristics through manufacturing equipment. Common flow agents include silicon dioxide and magnesium stearate.
Flow Agent has emerging evidence.
Silicon dioxide (from quartz) · Magnesium stearate (from palm/coconut oil) · Rice flour (from rice)
Varies by agent. Silicon dioxide is mined and purified. Magnesium stearate is made by reacting stearic acid with magnesium.
Flow Agent interacts with other supplements and meds. The analyzer flags interactions, dose mismatches, and timing collisions across your whole list.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.