Diatomaceous earth is a fine powder made from fossilized algae. Food-grade versions work as a gentle physical exfoliant in skincare and also supply silica when swallowed.
Some people take it to support hair, skin, and nail health. Evidence for these benefits is limited.
Stir a small amount into water and drink on an empty stomach. Do not inhale the dust, even from food-grade powder. Airborne particles can irritate your lungs.
Choose only food-grade diatomaceous earth, not filter-grade. Start with small amounts to see how your body reacts.