Quick answer

A change in smell is often from natural oil oxidation or ingredient variation, but it can also signal spoilage. Check the supplement's appearance, texture, and expiry date to decide if it's still safe.

Natural vs. spoilage odors

ProCaps Laboratories supplements, especially those containing oils like evening primrose or black currant seed, can develop a slightly rancid smell over time due to natural oxidation. This is not always a sign of spoilage, but a strong, sour, or fishy odor usually indicates the oils have gone bad. Always check the supplement's appearance and texture first.

If the softgels are sticky, leaking, or discolored, discard them immediately. A slight change in smell within the first few months of opening is normal for oil-based supplements; a sudden strong odor after long storage is not.

Does your supplement smell off? Follow this diagnosis

  • Symptom: You notice a strong, unusual, or rancid smell from your ProCaps Laboratories softgels.
  • Likely cause: Natural oxidation of oils (e.g., evening primrose or black currant seed oil) over time, or exposure to heat, light, or moisture that accelerated spoilage. Check the expiry date and storage conditions.
  • Corrective action: Inspect the softgels: are they intact, uniform in color, and free from stickiness? If yes and the smell is mild, they are likely still safe. If the smell is strong or the softgels are damaged, discard the bottle. If in doubt, contact the manufacturer or retailer.
  • Stop or choose another option: If the smell is strong, the softgels are sticky or leaking, or the expiry date has passed, do not consume. Buy a fresh bottle and store it in a cool, dark place. Always store oil-based supplements away from heat and light.

Product facts

  • ProCaps Laboratories: ProCaps Laboratories Evening Primrose and Black Currant Seed Oil softgels contain 500 mg evening primrose oil and 900 mg black currant seed oil per serving, both rich in omega-6 fatty acids. These oils are prone to oxidation, which can cause a change in smell. Knowing this helps you distinguish normal aging from spoilage.

    ProCaps Laboratories

    ProCaps Laboratories