# Journal: Supplements

- [How to Start a Supplement Brand (2026 Guide)](https://rohankumar.pro/journal/how-to-start-a-supplement-brand-2026) — How to start a supplement brand in the US in 2026: FDA rules, formulation, manufacturing, packaging, testing, costs and a full launch checklist.
- [The Supplement Industry's Second-Order Problems (2026)](https://rohankumar.pro/journal/the-supplement-industrys-second-order-problems-2026) — Why supplement brands struggle in 2026: compliance pressure, fragile supply chains, expensive ads, GLP-1 disruption and a category-wide trust problem.
- [Peptides, Explained: What They Actually Are and What They Do](https://rohankumar.pro/journal/peptides-explained-what-they-actually-are-and-what-they-do) — What peptides actually are, what they do, which are real medicines and which are hype, who regulates them, side effects, and which are banned in sport.
- [FDA Supplement Label Design Requirements (2026 Guide)](https://rohankumar.pro/journal/fda-supplement-label-requirements-2026) — A panel-by-panel guide to FDA supplement label requirements in 2026: required elements, type sizes, the 2025 allergen changes, and claims to avoid.