Heavy nicotine use can lead to hair thinning and loss, but quitting can reverse these effects. The user noticed significant hair regrowth after quitting vaping.
The user has been using finasteride and oral minoxidil for hair loss but hasn't seen improvement and is quitting nicotine and caffeine to see if it helps. Some believe quitting nicotine improved their hair health due to better blood flow, while others are skeptical about the impact of blood flow on hair loss.