I bought these the beginning of March. Its now mid April. Ive worn this pair for several weeks now. All day and night. In the shower and biking. Ive experienced no turning. And no dk8n irritation and the backs remain the same color. I have sensitive skin and wearing costume jewelry makes my lobes swell up and my ear begins to burn and redden. With these I have no negative side effects thus far.  So they are excellent for the price and very cute, minimalist look.