Dermaplaning is when an aesthetician uses a scalpel blade to physically exfoliate dead skin cells and fine hairs or peach fuzz to improve your skin's texture. It's OK to perform this treatment at home, but you do run the risk of "traumatising and nicking the skin" if done wrong, according to what a dermatologist told us. For safer results, use a small, single-bladed razor that's less harsh on the skin, and shave with the grain to reduce the risk of skin injury.
Head over here for more details on the safest way to dermaplane at home.