kosterina.com Reviews
What Shoppers Say About kosterina.com
Based on recent kosterina.com reviews, shopper sentiment is mixed. Many customers highlight the product range, fair pricing and working promo codes, while a smaller group points to slower support or a returns process that could be smoother.
Most reviewers describe a straightforward checkout and reliable delivery. Read the full reviews below to weigh the feedback before you buy.
Customer Reviews (2)
Sorted by: Most recentI consumed a Kosterina Olive Oil Shot on 01.23.2026 and immediately detected glass fragments in my throat. After spitting out the product, I could clearly see glass pieces. The bottle itself appeared intact, so the glass seemed to originate from inside or the bottom. This led to an emergency ENT appointment and an MRI to check for damage, plus I lost an entire day of work. When I contacted Kosterina, they asked me to send back the bottles and cover shipping costs with ground delivery. Rather than handling this directly, they pushed me toward their insurance company, The Hartford. Their response so far has been that they're still investigating how glass ended up in a sealed bottle. This looks like a real manufacturing problem with serious health impacts. I haven't seen much urgency or direct communication from the company about what went wrong. I've kept everything organized - the bottles, all my medical paperwork, and every email exchange. To anyone buying Kosterina Olive Oil Shots, please check your bottles thoroughly before opening them. I gave Kosterina weeks to work this out behind the scenes, but they basically went silent.
I'm really disappointed with this company overall. Their products are just okay at best, and the customer service is pretty terrible. I spoke with someone in management and honestly expected better from what's supposed to be a family operation. They're giving Long Island a bad name. Here's my situation: I have an oregano allergy, which is serious. They shipped me a dozen jars of their olive product that contains oregano. Seriously? I spent my own time carefully going through the ingredient list, taking photos of the packaging and the wrong items I received, and sending everything to their support team. The response I got was dismissive, and they wanted me to take more photos of their products. Come on, you're selling olive oil, not luxury audio gear. Stop treating customers like suspects every time your warehousing partner makes a mistake or mixes up an order. This is unacceptable.