Black Serum Tattoo is a tattoo shop in San Francisco that offers custom and fine-art tattoo services. They specialize in dot-work and blackwork tattoos. The shop has received positive reviews, with customers praising the talented artists and the high-quality artwork they create. Many customers mentioned their great experience at the shop and how comfortable and welcome they felt during the tattooing process. The shop's ambiance and cool interior design were also appreciated. Customers particularly praised the artists Oro and Mimi-Sama for their exceptional skills and attention to detail. Overall, Black Serum Tattoo is highly recommended for its talented artists, unique designs, and welcoming atmosphere.