Most of the products are made from synthetic materials and will have a few ingredients such as mineral oil, butylated hydroxyanisole (BHA) and hydroquinone. In my opinion, cosmetic companies use these substances because the chemical is inexpensive and safe. However, I will be reviewing a few of the products to see how they perform, and if they are worth the money they are. Please bear in mind I am not an expert and can only review the product on its own merit. If you have any questions about any of the products, please feel free to contact me. I would be happy to discuss them with you and let you know if any products are right for you. Please note I will review a wide range of products. Some are natural, some are synthetic and some have added ingredients. I have included links to several of the products. 1. Vitamin C Serum This serum is a perfect example of a vitamin C serum. It contains both organic and non-organic ingredients. It is free of animal products and preservatives. I like this serum because it has a high level of antioxidants in it that can help to protect your skin from harmful UV rays.