About MONO MOON

MONO MOON is a private tattoo studio founded in 2020. The studio is co-owned by two talented artists, Sai Li and Mariel Bayona, and focuses on creating a safe and welcoming space for all clients. They specialize in fine line tattoos and aim to make the tattoo experience comfortable and enjoyable. Clients praise the clean, cozy, and calming atmosphere of the studio, as well as the artists' talent, professionalism, and dedication to their craft. Mariel is known for her beautiful, detailed tattoos done quickly with a light hand, and her work is highly regarded for its quality and staying power. Sai is appreciated for her exceptional precision, professionalism, and ability to make clients feel welcome, even after long drives. The booking process is described as easy and convenient.

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Reviews for MONO MOON

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  • May 2025

    Mariel is a true artist. Not only are her tattoos absolutely beautiful and incredibly detailed, but she works SUPER fast with a light hand. I am on my second piece (I have 5 total tattoos)with her and I truly would not go to another artist. The quality and staying power of her work is incredibly high and worth every penny (and the pain!). As a bonus, the studio is super welcoming, warm, and calming. Mariel is an absolute gem and a privilege to work with h

  • Aug 2024

    Sai was exceptionally polite and professional throughout the entire process. She made me feel instantly welcome, which put me at ease from the start. The environment was also very calming. Sai’s precision and artistry truly stand out, and the quality of work is exceptional.

  • Apr 2024

    I had the pleasure of being tattooed by Mariel Bayona, and I can confidently say that their skill is unparalleled. Their attention to detail is truly remarkable, ensuring that every line and shade is executed with precision. What sets Mariel Bayona apart is their ability to not just ink a design, but to infuse it with emotion and meaning, resulting in a piece of art that speaks volumes.

Hours

Monday: ClosedTuesday: 12 - 7PM
Wednesday: 12 - 7PM
Thursday: 12 - 7PM
Friday: 12 - 7PM
Saturday: 10AM - 7PM
Sunday: Closed

Tips

 on-site services by appointment only wheelchair accessible street parking free wi-fi women-owned gender-neutral restrooms

Location

1200 Union St, San Francisco

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