I am a 20 year old male with no visible upper lip and a long philtrum. Would a lip lift fix this issue? (photo)

The lip lift can produce increased vermillion show. There are special techniques that I use to enhance this process further.

There are surgical and non-surgical approaches to lip augmentation. Non-surgical approaches include botox (slight lift, reducing gum show) and filler (volume restoration). Surgically, you can have two separate incisions under the nose (italian), one incision under the nose (bull horn), one incision at the red/white upper lip junction (gull wing) or two separate incision at the corners, or a combination, depending on your desired look and anatomy. My preferred surgical technique is called the Elelyft, which is a version of the bullhorn approach.
The ideal candidate for the Elelyft, or upper lip lift, is someone with a philtral length of 15mm or longer, no upper dental show, and/or a thin upper lip. The nasal base to mouth width ratio needs to be taken into consideration to avoid leaving the lip corners down.
You seem like a good candidate for the procedure, but a few additional angles would be important. 
Gary Linkov, MD
Lip Specialist
Manhattan

Hi there, thank you for your question.
According to your photo the distance between your nose and your upper lip is elongated. Performing an upper lip lift will certainly improve the proportions of your lips. Shortening this distance by removing a strip of skin and lifting the upper lip towards your nose will create a more balanced appearance of your lips, add extra volume and redness to your upper lip. 
Do find a plastic surgeon who is well experienced with lip surgery in order to have an in-person consultation and discuss achievable results. Good luck!
Kind regards,
GB