The Triple Bottom Line is a product development philosophy that takes into account not just the financial bottom line, but also the social and environmental impact of a product. In other words, it's not enough for a product to be profitable - it also needs to be socially responsible and environmentally sustainable. The Triple Bottom Line is sometimes also referred to as the "People, Planet, Profit" philosophy. Supporters of the Triple Bottom Line believe that companies need to take into account all three bottom lines in order to be truly successful in the long term. By taking into account the social and environmental impact of their products, they argue, companies can create products that are not only profitable, but also have a positive impact on the world.