Clean is an American fragrance company that develops perfumes based on pleasant, natural scents. The company offers a range of fragrances for both men and women, including colognes and perfumes. While colognes are considered lighter and more subtle, perfumes are stronger and longer lasting due to their higher concentration of fragrant oils. The differences between cologne and perfume include strength, ingredients, price, intensity, and staying power. Ultimately, the choice between cologne and perfume comes down to personal preference.