Clarins Hand and Nail Treatment is a rich moisturizing cream that softens hands and strengthens nails. Clarins Clarins is a French luxury cosmetics company, which manufactures prestige skincare, makeup and fragrances products. The family company was founded in 1954 by the medical student Jacques Courtin-Clarins, who died in 2007. The son of the company founder, Christian Courtin-Clarins, has been the chairman of Clarins since 2000. At the heart of every Clarins product is a potent cocktail of time-proven plant extracts and some exceptional science. Because plants and herbs contain the most effective yet gentle skin re-balancing properties and create uniquely sensory textures and fragrances.