Aluminum
AlAluminum SaltAluminum Sulfate
Preservative
Aluminum is a metal that is often used to prevent food from spoiling or to make it look nicer. It's also used in some medicines and cosmetics to help them work better.
Moderate Concern
Source: FDA GRAS list
The concern with aluminum is that high levels of it can build up in the body and potentially cause health problems, but the FDA has set limits on how much can be used in food and cosmetics.

I put metal in my microwave 🙃
Samuel Whitlock
r/Ultralight
359
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Aluminum Chloride-Driven Neurodegeneration: Interlinking Redox Imbalance, Inflammation Cascade, and Excitotoxic Damage Across Molecular and Behavioral Domains.
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Last updated: May 16, 2026