Best Empty Gelatin Capsules AI pick
Chosen by an AI model from its trained knowledge, with its reasoning.
AI pick (line): Capsuline Clear Gelatin Capsules Size 00
Capsuline is a dedicated capsule maker whose clear size 00 gelatin capsules come in consistent sizes, fit standard manual filling machines, and are sold in bulk counts for regular home filling.
Not for: Vegans, vegetarians, and anyone avoiding animal-derived gelatin for religious or dietary reasons; they should buy HPMC (vegetable) capsules instead.
AI picks by need
For small batch from a supplement brand
NOW Foods Gelatin Capsules Size 00 (line)
NOW sells size 00 gelatin capsules in modest pack counts, which suits occasional fillers who don't want a bulk bag.
Not for: High-volume fillers, who will get better value from a dedicated capsule supplier's bulk packs.
For no animal gelatin
NOW Foods Veg Capsules (line)
These are plant-based HPMC capsules that work as a drop-in substitute for gelatin in the same sizes and machines.
Not for: Anyone filling hygroscopic powders on a budget, since HPMC usually costs more than gelatin.
What the AI looks for in Empty Gelatin Capsules
- Capsule size
- Common sizes are 000 (largest), 00, 0, 1 and smaller. Size 00 is the usual home default, and 0 or 1 are easier to swallow. Size sets how much powder each capsule holds and how easy it is to swallow. Fill weight also depends on powder density, so measure your own powder rather than trusting a fixed mg figure.
- Machine compatibility
- Capsule size must exactly match your filling machine's plate size. A mismatched size will not seat in the plate, which leads to crushed caps, poor locking and wasted capsules.
- Separated vs joined
- Check whether the caps and bodies arrive separated or pre-joined. Pre-joined capsules have to be pulled apart before filling, which is tedious for batches but harmless for hand filling.
- Gelatin source
- Look for a stated animal source (bovine or porcine) and any kosher or halal certification you need. Labels often omit the source, and it matters for religious and dietary restrictions.
- Storage humidity
- Store sealed in a cool, moderately humid place, away from very dry air or dampness. Gelatin turns brittle and cracks when it dries out, and it softens or sticks when it absorbs moisture.
Brands that matter
- Capsuline: A capsule specialist offering a wide range of sizes, colors and matching filling machines.
- Capsule Connection: A long-running empty-capsule supplier that sells in bulk.
- NOW Foods: A supplement brand selling both gelatin and veg capsules in smaller packs.
What to avoid
- Unbranded capsules that don't state the size or gelatin source.
- Filling oils or water-based liquids into two-piece hard gelatin capsules: they leak, and water dissolves the shell.
- Buying a size before confirming it matches your filling machine.
Questions
Gelatin or vegetable (HPMC) capsules?
Gelatin is usually cheaper and dissolves quickly but is animal-derived. HPMC is plant-based and handles low humidity better, but it typically costs more. Both come in the same sizes.
How much does a size 00 capsule hold?
It depends on powder density. Light, fluffy powders fill far less weight than dense ones, so weigh a few filled capsules of your own powder to find the actual dose.