How Long Does Neem Oil Last?

Neem oil is a highly beneficial and most commonly used oil. This natural oil is pressed from the fruits and seeds of the neem tree (Azadirachta indica), native to India and other parts of Southeast Asia. It is often used in organic farming and traditional medicine because of its insecticidal, medicinal, and anti-fungal properties.

Most people are unaware of its use as an ingredient in our soaps, toothpaste, cosmetics, and dog shampoos. Not only does neem oil help improve your skin, but it is also an effective product to control insects and diseases in your garden. It is the best organic solution that will help manage infestations. However, like any product, the oil has an expiration date.

So, if you want to know how long neem oil lasts, keep reading!

How Long Can You Use Neem Oil for?

Neem oil typically lasts 1 to 3 years when stored properly in an area with dim light and preferably low temperature. However, once opened, the oil should be used within 6 to 12 months to ensure the best quality and effectiveness. It’s always recommended to check the expiration date on the packaging and give the oil a sniff test before using it to ensure it’s still good. The oil should be discarded if you notice a difference in its smell.

What Is the Maximum Life of Neem Oil?

How long a bottle of fresh neem oil lasts depends on the storage conditions, but it typically lasts 1-2 years when stored in an even-temperature room that does not receive direct sunlight. It is best to store it in an airtight container to help preserve its potency. If the oil has been exposed to high temperatures or light, it may degrade more quickly and lose its effectiveness. Before using it, it is always a good idea to check the oil for any signs of spoilage, such as a rotten smell or a color change.

Can Neem Oil Go Bad After a Few Years?

Yes, neem oil can go bad over time. The usefulness of neem oil can vary depending on how well you’ve kept it. If you don’t close the bottle properly or place your neem oil under direct sunlight, it will go bad before its expiration. Once it goes bad, using the oil will be ineffective and can threaten your skin or plant.

Signs of spoilage in neem oil include a tangy/acidic smell, a color change, or a thick consistency. If you see any of these common signs, it is best to discard the oil and purchase a fresh bottle. It’s also a good idea to check the expiration date before using it, as it can expire even under ideal storage conditions.

Individuals who wish to get more use out of their neem oil should store it in an airtight container, preferably where they place all their medicines. It’s also important to keep the container sealed when not in use to prevent contamination.

Does It Come With An Expiration Date?

Yes, neem oil can expire, but it has a relatively long life compared to many other oils. While unrefined neem oil can last up to three years, refined neem oil can benefit you for up to four years.

It is easy to spot if the neem oil has expired. The oil will have a sour scent or will have thickened comparatively. If you can see this happening, it may be best to discard it.

How Can You Extend the Life of Neem Oil?

Generally, neem oil will last a few years when opened. However, there are a few ways to extend its life. The general rule is to refrigerate the oil. So, if an in-use bottle of oil were supposed to last a year and a half, it would stretch to three years.

The best way to ensure your neem oil lasts a couple of years is to buy cold-pressed and pure neem oils. These are readily available in many organic shops nowadays and are typically sold in dark glass bottles to help last longer.

What Is the Life of Neem Oil on Plants?

Neem oil is one of the most excellent natural products for a plant that solves all infestation problems. It interrupts the pests’ hormones that control reproduction, development, and nourishment. It is an instant solution to ensure your plants look glossy and nourished. It is best used in the morning and evening.

Individuals must avoid using neem oil under direct sunlight as that, combined with neem oil, becomes dangerous for the plant and can end up burning your plant altogether. The lasting time for individuals who spray neem oil on their plants is usually two and a half days. The potency will reduce as the hour’s increase. Thus, you need to reapply neem oil every three to four days to ensure your plants are not infected.

Final Thoughts

It may shock some that oils expire, but yes, they, too, have a life of only a few years. Neem oil (homemade, pure, or cold-pressed) all have expiration dates. How long your oil lasts depends on how you keep the oil. If the conditions are extreme, chances are your oil will expire way earlier than you anticipated. Thus, it is important to store the oil under favorable conditions and read the expiry date of the oil before buying it.

While neem oil can control pests on plants and treat various skin conditions in humans and animals, using it when it goes bad or after its expiry date can have adverse side effects on your skin or plant. Stop using neem oil and buy a fresh one as soon as you detect a color change or a different smell.