Yes, lube expires - and using it past its date is more of a problem than most people realise. Old lubricant can irritate sensitive tissue, disrupt your body's natural balance, and even cause a condom to tear. This guide covers how to check whether yours is still good, what the symbols on the packaging actually mean, and how to store it so it lasts as long as possible.
Contents
- What is lube?
- What ingredients make up lube?
- Does lube expire?
- What do the symbols on lube packaging mean?
- How long does lube last?
- How does lube help reduce infection risk?
- How to store lube properly
- What can you use if a silicone or water-based lube is not available?
- FAQ
What is lube?
Lubricant is a product applied to the skin or to a condom to reduce friction during sex. Less friction means more comfort, less chance of tearing or irritation, and a more reliable condom. It is used by people of all genders and orientations, with or without condoms, and for vaginal or anal sex. Anal sex in particular produces no natural lubrication, making lube effectively essential rather than optional.
Lube is also used medically - vaginal dryness caused by hormonal changes, medication, or health conditions is a common reason people use lubricant outside of a specifically sexual context. The same products apply in both cases.
What ingredients make up lube?
The ingredients in a lubricant determine its texture, longevity, and compatibility with condoms and the body. There are three main types:
Water-based lubricants are the most common and the most versatile. The base is water, thickened with agents such as hydroxyethylcellulose or glycerin. They are compatible with all condom materials and with silicone sex toys. Because water evaporates, they can dry out during use and need reapplying - but they wash off easily and are generally the gentlest option for sensitive skin. Some contain glycerin, which can promote yeast growth in people prone to infections; glycerin-free formulas are available if that's a concern.
Silicone-based lubricants use polydimethylsiloxane (PDMS) as the active ingredient - the same compound used to lubricate latex condoms during manufacture. Silicone is highly stable, doesn't dry out, and lasts much longer per application than water-based options. Compatible with latex and polyisoprene condoms, but not with silicone sex toys (silicone degrades silicone). Not water-soluble, so harder to wash off.
Oil-based lubricants - including natural oils such as coconut oil - are long-lasting and very moisturising. They are not compatible with latex or polyisoprene condoms: oil degrades the material rapidly, increasing the risk of the condom breaking. Safe to use with polyurethane condoms. See our guide to using coconut oil as lube for more detail on this.
Most lubricants also contain preservatives - commonly parabens or phenoxyethanol - which extend shelf life by preventing bacterial and fungal growth in the formula. These preservatives are what make lube safe to store and use over time, but they do break down eventually, which is why expiry dates exist.
Does lube expire?
Yes. The preservatives that keep lube stable and hygienic degrade over time. Once they break down, the formula can no longer reliably prevent bacterial or fungal contamination. In oil-in-water formulas, the emulsion can separate. In water-based lubes, the thickening agents break down and the texture changes. In oil-based products, the oil itself can go rancid.
Using lube after this point is not just a matter of reduced performance - it can introduce bacteria to sensitive tissue, disrupt the natural pH of the vagina, and cause irritation, burning, or infection.
How do you tell if your lubricant has expired?
Check the packaging first - see the section below on expiry symbols. If the date has passed, discard it. If you're not sure of the date, check the product itself for these signs:
- Change in colour or smell - lube should be colourless or the expected colour for flavoured products, and should be odourless or mildly scented. A sour, rancid, or chemical smell is a clear sign of degradation.
- Change in consistency - if it has become noticeably thicker, thinner, clumpy, or stringy compared to when you first opened it, the formula has broken down.
- Separation - water-based lubes should be uniform. If the formula has split into distinct layers, it has reached the end of its usable life.
- Crystallisation - visible crystals or grainy particles in a water-based lube indicate that the glycerin or other ingredients have crystallised, which happens as the formula degrades.
If any of these are present, discard the product regardless of what the date on the packaging says. The date is a guideline, not a guarantee - storage conditions affect how quickly a product degrades.
What do the symbols on lube packaging mean?
There are two different indicators you may find on a lubricant bottle or tube, and they mean different things:
Expiry date (Exp / Best Before) - a printed date, usually in month/year format. This is the date before which the manufacturer guarantees the product is safe and effective if stored correctly. Using the product after this date means the preservative system can no longer be relied on.
PAO symbol (Period After Opening) - a small icon of an open jar with a number and "M" printed inside it (for example, 12M or 24M). PAO stands for Period After Opening. It tells you how many months the product is safe to use after you first open it. A product marked 12M should be discarded 12 months after you first opened it, regardless of the printed expiry date.
Some products carry both. If yours only has a PAO symbol and no printed expiry date, write the date you first opened it on the bottle so you can track when it needs replacing. Many people skip this and end up using lube well past its safe window without realising.
| Symbol | What it looks like | What it means |
|---|---|---|
| Expiry date | Exp 06/2027 or Best Before 06/2027 | Use before this date (applies from manufacture) |
| PAO symbol | Open jar icon with "12M" or "24M" inside | Discard this many months after first opening |
How long does lube last?
Most lubricants have a shelf life of one to three years from the date of manufacture when stored unopened in the right conditions. The exact figure varies by formula type - silicone and oil-based lubes are more chemically stable and tend to last longer; water-based lubes contain water which makes the formula more susceptible to microbial growth over time.
| Lube type | Typical shelf life (unopened) | Notes |
|---|---|---|
| Water-based | 1-3 years | Most common type; shorter shelf life than silicone or oil-based |
| Silicone-based | 1-3 years | Chemically stable; preservatives still degrade over time |
| Oil-based | Up to 5 years | Most stable; can go rancid if stored poorly or exposed to air |
| Flavoured / edible | 1-2 years | Food-grade ingredients degrade faster; check taste as an additional indicator |
Always check the specific date on your product rather than relying on these ranges - formulations vary, and some products have preservative systems that extend or reduce these windows.
How long does lube last after opening?
Once you open a lubricant, the clock starts. Air exposure, temperature changes, and any contamination from fingers or skin introduce variables the unopened formula was protected from. As a general rule, use an opened lubricant within 12 months - some products specify 6 months depending on their formula. Check your product's PAO symbol for the manufacturer's specific guidance.
Contamination is a particular concern with pump or squeeze bottles: if you touch the nozzle, or use a finger to apply from a pot-style container, you can introduce bacteria directly into the product. Pumps and airless dispensers reduce this risk compared to open pots.
Is expired lube bad for you?
Yes, for several reasons. The primary concern is microbial contamination: once the preservatives have broken down, bacteria and fungi can grow inside the formula. Applying this to sensitive tissue - vaginal or anal - can cause bacterial vaginosis, yeast infections, or more generalised irritation. The skin and mucous membranes in these areas are particularly vulnerable to disruption of their natural pH and microbial balance.
Expired lube can also cause contact dermatitis - an inflammatory skin reaction - particularly in people with sensitive skin or a tendency toward allergic responses. Symptoms include localised redness, itching, burning, and swelling.
There is also a risk to condom integrity. Lubricant that has dried out or degraded loses its lubricating properties. Used with a condom, this means increased friction rather than reduced friction - which can cause the condom to tear. This is especially relevant for ultra-thin condoms and during anal sex, where friction is higher.
How does lube help reduce infection risk?
The connection between lube and infection risk runs in two directions: good lube reduces risk; bad lube can increase it.
Fresh, properly formulated lubricant reduces friction during sex. Less friction means less micro-tearing of the delicate tissue lining the vagina and rectum. Those micro-tears are entry points for bacteria and viruses - including STIs. By keeping tissue intact, lube reduces the likelihood of transmission during sex. This is one of the reasons lube is recommended as standard during anal sex, where the tissue is more fragile and produces no natural lubrication.
Some lubricants contain antimicrobial agents. The most common is Nonoxynol-9, a spermicide also used for its antimicrobial properties. However, Nonoxynol-9 is an irritant - regular use can damage the very tissue it's supposed to protect, and it degrades faster than the rest of the formula. Products containing it should not be used past their expiry date, and frequent use is not recommended for people with sensitive tissue.
For more on which lube to choose for different situations, see our water-based vs silicone lube guide.
How to store lube properly
How you store lube directly affects how long it lasts. Poor storage can degrade a formula months before its printed expiry date; good storage keeps it stable for its full shelf life.
- Keep it away from heat. Heat accelerates the breakdown of preservatives and destabilises emulsions. Bathrooms, cars, and windowsills are all poor storage locations. A bedroom drawer or cupboard at consistent room temperature is ideal.
- Keep it away from direct sunlight. UV exposure degrades active ingredients and can alter the formula even through opaque packaging.
- Keep the cap closed. Air exposure introduces oxygen and potential contaminants. Replace the cap firmly after every use.
- Don't double-dip. If you use a finger to apply from a pot or tube, wash your hands first. Introducing bacteria to the product from contaminated fingers shortens its safe life.
- Store at a consistent temperature. Repeated temperature cycling (warm during day, cold at night) stresses the formula. A consistent 15-25°C is ideal for most products.
- Keep it separate from condoms. Storing lube in direct contact with condom wrappers is fine, but avoid storing oil-based products loose with latex condoms - even trace amounts of oil on the outside of packaging can degrade latex over time.
What can you use if a silicone or water-based lube is not available?
If you don't have a dedicated lubricant, a small number of natural oils work reasonably well in specific circumstances. The important caveats are compatibility with condoms and the potential for irritation.
Coconut oil is the most commonly used natural alternative. It is moisturising, long-lasting, and generally well-tolerated by sensitive skin. However, it is an oil, which means it degrades latex and polyisoprene condoms - it should only be used with polyurethane condoms or without a condom. It can also disrupt the vaginal microbiome in some people. Our guide to using coconut oil as lube covers this in full.
Sweet almond oil is a similarly gentle option for external use only - again, not compatible with latex condoms. Fractionated coconut oil (processed to remain liquid) behaves the same way.
What not to use as a substitute
Several household products are commonly used as lube substitutes despite being genuinely unsafe to do so:
- Saliva - dries out almost immediately and provides very little lubrication. More importantly, saliva contains bacteria that are harmless in the mouth but can cause infections in vaginal or anal tissue. It also has a pH that disrupts the vaginal environment.
- Vaseline / petroleum jelly - degrades latex condoms rapidly and has been associated with increased rates of bacterial vaginosis in studies. Not suitable for internal use.
- Body lotion or moisturiser - typically contains fragrances, preservatives, and pH-adjusting agents that irritate mucous membranes. Not designed for internal use and can cause significant localised irritation.
- Baby oil - oil-based and degrades latex condoms. Also difficult to remove from skin and can interfere with the vaginal environment.
- Cooking oils (olive oil, vegetable oil) - can be used externally in some circumstances but are not suitable for vaginal use and degrade latex condoms. Go rancid faster than dedicated oil-based lubricants.
If you regularly need a latex-compatible lubricant, water-based is the most accessible option and is available inexpensively in most supermarkets and pharmacies.
FAQ
Does Durex lube expire?
Yes. Durex lubricants carry a printed expiry date on the bottle or packaging, usually on the base or back label. Once past this date, the preservative system can no longer be relied on to keep the formula safe. Durex also prints the PAO symbol on some products, indicating how long the product is safe to use after opening. Check both when assessing whether a product is still good.
Can expired lube damage a condom?
Yes, in two ways. First, if the expired lube contains degraded oil components, these can weaken latex. Second, lube that has lost its lubricating properties through degradation will increase rather than reduce friction - placing additional stress on the condom material during use. Ultra-thin condoms are particularly vulnerable to this. Use fresh lube with every condom.
Can you use saliva as lube?
Not safely. Saliva dries out very quickly, providing minimal lubrication for any length of time. More significantly, the bacteria naturally present in saliva are not suited to vaginal or anal environments and can cause infections. It also has an acidic pH that can disrupt vaginal flora. It is not a reliable or safe substitute for dedicated lubricant.
What happens if you use expired lube?
The most common outcomes are localised irritation, itching, or burning - particularly in people with sensitive skin. More serious consequences include bacterial vaginosis (a bacterial imbalance in the vaginal environment) or a yeast infection (candidiasis), caused by microbial contamination in the degraded formula. In cases where there is an allergic component, contact dermatitis can occur. Stop use immediately if you experience any of these symptoms and see a GP if they persist.
Does flavoured lube expire faster than regular lube?
Generally, yes. Flavoured lubes use food-grade flavourings and sweeteners that have a shorter stable life than standard lubricant ingredients. Many flavoured lubes have a shelf life of one to two years rather than three. Taste is also a useful additional check: if a flavoured lube tastes sour, bitter, or off compared to when you first opened it, treat that as a sign it has degraded regardless of the date on the packaging.
Can I use lube past its expiry date if it looks and smells fine?
We wouldn't recommend it. The visible and sensory signs of degradation - colour change, separation, unusual smell - indicate that the formula has already broken down significantly. But preservative breakdown happens before those signs appear. A product can look and smell fine while no longer being microbiologically safe. The expiry date exists to mark the point at which this transition can no longer be predicted. If in doubt, replace it - a new bottle of water-based lube is inexpensive relative to the potential for irritation or infection.
