What Amazon requires to sell dietary supplements in 2026, from third-party cGMP verification through approved TIC providers to compliant labels and documentation.
Capsule Size Chart: 00 vs 0 vs 1 vs 2 (and How to Choose)
Capsule size chart with volume, fill capacity and dimensions for sizes 000 to 4, plus how to choose between sizes 00, 0, 1 and 2 for your supplement.
How to Start a Supplement Company: A Step-by-Step Guide
A practical, step-by-step guide to starting a supplement company: choosing a format, building your formula, FDA rules, labels, testing, picking a contract manufacturer and planning your first production run.