Is it in poor form to buy supplies on Etsy, make something with them and then sell the resultant craft on Etsy?

I don’t know much about the business side of Etsy. Mostly I browse and on occasion, purchase. However, I’ve become interested in starting my own Etsy business. Since there are a lot of Etsy suppliers who sell things like beads and paper ephemera which I would be using I would be interesting in buying from them. However, since these people are selling their supplies on Etsy, I’m just wondering if it is frowned upon in the Etsy community to sell items made from Etsy supplies.