This is an unopened package of 2.0 mL tube of RevitaLash Advanced Eyelash Conditioner. I can't find expiration date but I think it's expired. But it was never opened so I read it could be good for 3+ years after expiration date. That's why I priced it so low. The product is designed to fortify lashes, improve flexibility, and protect against breakage.It is generally formulated to be hypoallergenic, non-irritating, and safe for use with eyelash extensions.Key ingredients often include peptides, lipids, biotin, and green tea extract to condition and strengthen lashes.