Flavoured lube expiration question

I recently found some flavoured oral lubes (flavoured gels really, not the kind of thing I'd imagine anyone would use for sex) that I bought from a high street shop about 4/5 years ago. They have no expiration date on the packaging, so could anyone tell me if they'd still be safe to use or should they be headed for the bin? Thanks!

If they have never been opened and the contents looks fine they will be fine to use once opened they will have up to a 24 month shelf life before you should really be binning them

Don't think I'd risk it, I'm not sure if they'd cause any harm, but the flavours may have altered, especially if they have been stored near sunlight or at room temperature for so long.

Don't think I'd want to risk it even if they are unopened! x