Hemp seed lip balms generally last about 12 months from the time they are opened, though some high-quality formulations can remain fresh for up to 18 to 24 months if stored properly. However, they can spoil faster than wax-based or butter-heavy balms because hemp seed oil is naturally more prone to oxidation. The shelf life depends largely on the product’s ingredients, packaging, and how it is stored.

Why Hemp Makes Shelf Life Tricky

Hemp seed oil, derived from Cannabis sativa seeds, is rich in polyunsaturated fatty acids (PUFAs). These beneficial fats nourish and soften the lips but oxidize quickly when exposed to air, light, or heat. Once oxidized, the oil can develop an unpleasant scent, a change in color, and a sticky texture. This instability occurs because the same fatty acids that provide moisture and nutrients also make the oil more reactive to environmental stress.

What Expiration Means for Lip Balms

Cosmetics like lip balms are not required by law to include an expiration date in the United States, but reputable brands perform stability testing to ensure product safety and quality. This testing helps determine how long a formula remains stable before it begins to degrade. While some companies include a small “open jar” symbol indicating how many months the balm is good after opening, others rely on customers to monitor the balm’s appearance, scent, and feel over time.

Packaging and Storage Make All the Difference

Air, light, and heat are the main factors that shorten a hemp lip balm’s lifespan. Opaque packaging and airtight designs—such as twist-up tubes instead of open tins—help preserve the balm by limiting exposure. Keeping the balm in a cool, dark place, such as a drawer or bag instead of a hot car or sunny windowsill, also prevents the oil from breaking down prematurely. Even small details like replacing the cap tightly after use can make a big difference.

Practical Shelf Life Estimates

• Unopened: A well-formulated hemp seed lip balm stored properly can last up to 18–24 months.
• Opened: Once opened, most balms should be used within 6–12 months for optimal freshness. Balms that contain antioxidants like vitamin E or rosemary extract may last longer, while those made primarily from hemp seed oil without stabilizers may degrade sooner.

How to Tell When It’s Gone Bad

Signs of an expired balm include a sour or “crayon-like” smell, a darker or yellowed tint, or a sticky, gritty texture. If the balm causes irritation or no longer applies smoothly, it should be discarded. These are typical signs that the oils have oxidized and lost their integrity.

How to Extend the Life of Your Balm

• Choose products packaged in opaque, airtight containers.
• Store in a cool, dark environment.
• Avoid leaving the balm in hot or sunny places.
• Always secure the cap after use.
• Label the opening date if you rotate multiple balms.

The Takeaway

Hemp seed lip balms can remain safe and effective for around a year if they are stored properly and protected from heat and light. Their shelf life isn’t dramatically shorter than traditional balms, but because hemp oil is more delicate, mindful storage is key to keeping them fresh.