I don't use much in the way of natural products except raw organic extra virgin coconut oil for dry skin and any skin irritations, raw unfiltered apple cider vinegar for bee stings and spider bites. All my other natural beauty and anti-aging treatments go inside, not outside.
I honestly don't think any beauty product works, whether homemade or store-bought. Anti-wrinkle creams do not get rid of wrinkles, anti-ageing products do not stop you ageing, and teeth-whitening toothpaste does not make teeth white. These products are a way for big business to make money from people's need to stay young and beautiful. Although those of us who were never beautiful to begin with, have a definite advantage. And, there is a reason why the men and women advertising these products, are in their early 20s. If they were to use 90 year olds, no one would buy into their products. But a 90 year old is not going to look like a 20 year old, no matter how much anti-wrinkle creams they use. With the possible exception of Joan Collins of course. For a 103 year old, she only has one wrinkle, and she is sitting on that.
The cosmetic industries have obviously made vast sums from peoples vanity and insecurities. I don't believe that there is any such thing as a "miracle cream" I, personally, just use a good moisturizer with a high SPF. This should slow down the ageing of my skin, not because it's a miracle cream, but because it offers my skin some protection from the damaging effects of the suns rays. As for home remedies, I think there's something in it , depending on the remedy eg. If I have puffy eyes I'll put pieces of cucumber on them. It helps.
I think natural products and remedies can be very effective. It makes more sense to put something like a cucumber or vitamin e oil on your skin than some of the chemicals I cannot even pronounce which are found in prescription and store bought remedies.
I think it depends on what you're trying to do. If you're looking to have a miraculous change overnight, nothing can do that. But reducing eye puffiness with cucumber (like Hollie Thomas said) or applying extra virgin coconut oil to dry skin (like couturepopcafe said) works and it's cheaper than buying a beautiful product just to do that. My daughter made me a wonderful body scrub out of kosher salt, soap flakes, and loose tea which helps with dry skin in the winter. I'd say that it works better than the sea salt bath scrub I used to buy (and is so much nicer smelling).