Sometimes, you just want a really good deal. The cost of beauty products can add up, but luckily, there are some great alternatives for cult favorites that work just as well. We found tons of genius makeup and skin-care dupes on TikTok that will save you money and blow your mind. Shop all these best-kept secrets, and snag yourself some awesome beauty essentials with low price tags. Who knew TikTok is the ultimate shopping guide?