Why does aloe vera smell bad?

What does aloe vera smell like?

There is no precise smell description to use here as a freshness test. Aloe gel and aloe extract contain different mixtures of volatile compounds, meaning chemicals that can enter the air and contribute to odor. Describing a sample as sour, grassy or rotten would not, by itself, identify the chemical responsible or tell you whether the product is safe.1

The plant variety, growing conditions, harvesting, processing and storage all influence aloe's composition. A freshly cut leaf and a processed aloe product therefore need to be considered separately. Treat the name 'aloe vera' as the start of identifying a product, not the entire investigation, however convenient that would be for the label.2

Fresh gel, latex and whole leaf are different

• Inner leaf gel is the clear, sticky material inside the leaf.
• Aloe latex is the bitter yellow liquid found beneath the outer skin.
• Whole leaf preparations contain both the inner gel and latex unless processing removes latex components.

Some whole leaf products undergo activated carbon filtration, often called decolorization, to reduce compounds from the latex. This changes the preparation's chemical composition. It does not give you a smell test for identifying which preparation you have.25

What should you do about an unpleasant smell?

For a bottled product, first identify whether it contains inner leaf gel or a whole leaf preparation. If the smell is unexpected, pause use and ask the manufacturer whether it is normal for that specific formula. This is a precaution, not a diagnosis of spoilage. A sniff is an observation, not a quality control department.3

For skin use, aloe gel is generally well tolerated, but burning, itching and rash have been reported. Stop applying aloe if these symptoms occur. Do not use a pleasant smell as a reason to continue using a product that irritates your skin.3

Why does aloe vera taste bad?

The latex is naturally bitter. A preparation containing latex is different from clear inner leaf gel, and whole leaf extract includes both.2

Do not taste a skincare product to check its freshness. Applying aloe gel to skin and swallowing aloe are different uses with different risks. Oral aloe latex can cause abdominal pain, cramps and diarrhea. Aloe taken by mouth may be unsafe during pregnancy and breastfeeding, and herbal products can interact with medicines. If you take medication, speak with your healthcare provider before using oral aloe.34