Packing protects the tablets
NOW’s packaging explanation identifies cotton as an insert used to protect tablet integrity. That supports a physical cushioning role, not a claim that cotton activates melatonin, increases potency or is required in all brands. Different dosage forms can use different packaging. [1]
Other inserts do different jobs
The manufacturer distinguishes cotton from desiccants that attract water, oxygen-control packets and charcoal used with strong-smelling ingredients. Their appearance and purpose differ. Do not treat every item inside the bottle as loose cotton or as an ingredient to swallow. [1]
Use product-specific handling instructions
If the label does not explain an insert, ask the manufacturer or pharmacist to identify it before discarding a sealed packet. Keep the original container and storage instructions together. The source does not supply a universal cotton-removal rule for every melatonin product. [1]
Packaging is not a potency test
Imagine two bottles differ only in whether visible cotton is present. That observation does not show that one has a more accurate dose. Ingredient content and suitability still require the label and quality information; keep sleep supplements out of children’s reach. [2]
| Item | Typical purpose |
|---|---|
| Cotton packing | Tablet protection |
| Desiccant packet | Moisture control |
| Oxygen absorber | Oxidation control |
| Melatonin tablet | The labeled dose form |

Sources for this article
- How Packaging Contributes to Product Quality - NOW
Source consulted: 2026-09-21. This is a reference resource, not a claim that we conducted the studies or tested a product. - Melatonin: What You Need To Know | NCCIH
Source consulted: 2026-09-21. This is a reference resource, not a claim that we conducted the studies or tested a product.