When it comes to cosmetic reviews, what criteria should you use to determine if they're real or not?

With so many new products coming out these days, cosmetic reviews are often the first thing I look for when choosing a product. However, when I see reviews full of similar claims, it's often difficult to know which information to trust. I'm curious to know if there's a difference in the perceived effects between reviews of cosmetics with a short usage period and those of products with consistent use. It's also important to consider that even for the same product, cosmetic reviews can vary depending on skin type, season, and usage environment. I'd like to know how to distinguish reviews that actually help with skincare, rather than those that simply focus on texture or scent. Could you elaborate on the criteria for cosmetic reviews that I can use as a guide to choosing the right product for me?