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Buying Guide

Supplement Storage and Shelf Life

Storage is the last mile of getting value from a supplement, and it is where bulk orders most often lose it.

Written by the Horsewood Editorial Desk Checked against the current bottle label Updated 6 August 2026 Cited: NIH ODS, NCCIH, FDA, FTC

On this page

  1. The four things that degrade supplements
  2. Why the bathroom cabinet is the worst place
  3. What an expiry date means
  4. Bulk orders specifically
  5. Travel

The four things that degrade supplements

  • Heat — accelerates chemical degradation of botanical actives
  • Humidity — capsules can soften and stick; powders clump
  • Light — particularly UV, which is why many ship in opaque bottles
  • Air — oxidation, which the seal and desiccant packet exist to slow

Why the bathroom cabinet is the worst place

It is the traditional spot and close to the worst available. A daily shower produces exactly the heat-and-humidity cycling that degrades botanical extracts fastest.

A bedroom drawer or a kitchen cupboard away from the hob and kettle is better on every dimension.

What an expiry date means

For most supplements it is a potency guarantee date rather than a safety cliff. The manufacturer is stating the product should contain the labelled amounts to that point when stored correctly.

After it, potency may decline gradually. The exception is any product showing visible change — discolouration, unusual smell, softening or mould — which should be discarded regardless of date.

Bulk orders specifically

A six-bottle order will be open for six months. Check the expiry covers the full period on arrival, leave desiccant packets in, and open bottles sequentially.

Travel

Keep supplements in their original labelled containers when travelling, particularly across borders. A bottle with a legible label and lot number causes fewer questions than an unmarked pill organiser.

Horsewood — official website pricing

Men's vitality capsules with zinc, magnesium, ashwagandha and bacopa. The Horsewood discount runs from $49 per bottle with a 60-day money-back guarantee.

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Disclaimer: this article is general information, not medical advice. Horsewood is a dietary supplement and is not intended to diagnose, treat, cure or prevent any disease. Individual results vary. For adults aged 18 and over. Talk to your doctor before starting any supplement, particularly if you take prescription medication.

Horsewood Editorial Desk

We write from the product label outward, tag each ingredient by evidence strength, and publish the unflattering parts too. See our editorial standards.

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Answers

Frequently asked questions

It is generally a potency date rather than a safety date, but discard anything showing discolouration, unusual smell or texture change.

Somewhere cool, dry and dark. Not the bathroom cabinet, where daily steam cycling is the worst environment in the house.

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No. Horsewood is a dietary supplement and is not intended to diagnose, treat, cure or prevent any disease, including erectile dysfunction or low testosterone.
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