You may know some products that are supposed to tighten skin, but that don't really work on their own. Many of them have a small chance of being ineffective. There are so many different products, I am going to include a link to all the best ones. I'll also link you to the Amazon reviews to give you some more insight on the products and give you an idea of what you can expect.
You can check out our review of Clarisonic for tighter skin on this page. Do not use products that contain alcohol! This is a serious concern for me, as many of these products are made with alcohol. I'm not talking about alcohol-based moisturizers, but alcohol-based products that have been diluted with other products, or even alcohol-based sunscreens (or similar products). This is a good rule to follow when buying anything that you are concerned about. Don't trust what you see on Amazon, as this is where most of the products you purchase are made. If you get an item that does not have alcohol in it, it's probably not safe. You can get products that are alcohol-free, which are not as bad as some of the other types of alcohol-based products, but still have some of the same issues as the others.