How do you guys check if the skincare you buy is fake or real online?

If you buy from Amazon you should only buy thing that have been posted on Amazon from te actual real retailer, YesStyle and stylevana are the real deal

Purchasing skincare from reputable websites or authorized retailers reduces the risk of buying fake products. Look for official brand websites, authorized sellers, check customer reviews, and scrutinize packaging and product details for authenticity indicators, like holograms or unique serial numbers.I usually buy from Stylekorean and Stylevana

I avoid buying from Amazon since my last bad experience with CeraVe moisturiser. Always suggest buying from authorized retailers.

I shop from authorized retailers like Stylekorean, Stylevana, Olive Young ect

I try and buy directly from the brand itself. It is best way to ensure your products are authentic.