Best Reptile & Amphibian Health Supplies AI pick

Chosen by an AI model from its trained knowledge, with its reasoning.

AI pick (line): Zoo Med Repti Calcium

This fine calcium carbonate powder, sold with and without D3, is the standard insect-dusting supplement for preventing metabolic bone disease.

Not for: Keepers who want a single all-in-one powder and won't manage separate calcium and multivitamin schedules.

Repashy Calcium Plus (line)

This combines calcium, D3 and vitamins in one dusting powder, which is popular for leopard geckos and other insect-eating geckos.

Not for: Keepers already using a separate multivitamin, because doubling up risks oversupplementing.

Zoo Med Reptivite (line)

This multivitamin is used a few times a week alongside plain calcium dusting.

Not for: Owners whose animals already get a complete powdered diet.

D3 vs UVB: Animals with proper UVB mostly get calcium without D3. Animals without UVB need calcium with D3. Excess D3 alongside strong UVB can cause oversupplementation.
Phosphorus-free calcium: Use calcium powders that contain no phosphorus. Feeder insects already carry too much phosphorus.
Preformed vs beta-carotene vitamin A: Many keepers prefer multivitamins with preformed vitamin A for insect-eaters, especially amphibians. Some species convert beta-carotene poorly, which leads to vitamin A deficiency.
Dosing schedule: Follow a set dusting schedule by age, with juveniles dusted more often than adults. Both under- and over-supplementation cause disease.

Yes. UVB lets the animal make D3, but feeder insects still lack calcium, so dusting with calcium is still needed.