LIKE romance, pastries and cobblestone streets; pharmacy skincare is something the French do exceptionally well. For international expats and tourists, stepping foot inside one of the country’s infamous pharmacies is just as exciting as visiting Versailles or...

Is it possible to turn back time? Alas not, and until now, there’s been no proven way of addressing the most intractable signs of aging—sagging around the jawline, loss of cheekbone definition, and, of particular...