Can I remove a black flat mole with King bio mole remover from Walmart on bottom lip? (photo)

Mole removal begins with a comprehensive examination and consultation to determine the likelihood of a mole being worrisome. 
Excisional and incisional biopsies are reserved for suspicious moles.
But its good news that most moles are not problematic and are only
cosmetic, thus leading to the option of scarless or non-surgical mole
removal with lasers and RF and plasma. 
Our office specializes in non-surgical mole removal. 
Best, 
Dr. Karamanoukian
Realself100 Surgeon

Thank you for your question and photograph. It's difficult to evaluate your skin through this type of forum because an in-person evaluation is needed to assess the spot on your lip. Dark lesions may look like moles but can often be something else. I highly recommend you consult with a board certified dermatologist to have your lip evaluated and to discuss removal options that are safe and effective. Take care and good luck.