Sephora sheet masks- do they expire?

[lauralou188]

I found several Sephora brand sheet masks under my cabinet that I’d forgotten about. I don’t see an expiration date on them but I’ve had them for at least 3 years. They’re unopened and were stored in a dark cabinet. Are these still safe to use??SEPHORA COLLECTION - Face Mask

[lmaster]

I'm thinking they might @lauralou188 a fellow Bic member used one that smelled like vinegar, and I used the same mask and it smelled lovely, so I think you can tell by the smell for sure

[lauralou188]

Thanks so much for the tip. I’ll definitely trying smelling one before using