Positives

• A long-term ME/CFS patient described returning to teaching after starting C60, reporting acute mental clarity, alertness, and profoundly refreshing sleep with vivid dreams Phoenix Rising.
  
  
• A patient with chronic muscle aches, cramps, and fatigue described symptom improvement within a few weeks of starting oral C60 Healthline.
  
  

Negatives

• Reviewers note that despite enthusiastic anecdotes, only a handful of human studies have been done and clinical trials have not yet established effectiveness or safety Healthline.
  
  
• Some users report no perceptible energy or sleep change after months of daily dosing, with one patient describing the experience as expensive olive oil Phoenix Rising.
  
  

Hurdles & Side Effects

• Quality control varies dramatically between vendors and rancid solvent oils can carry their own oxidative risks Healthline.
  
  
• C60 has high potential for harm with unknown long-term risks and side effects given the absence of human safety studies Healthline.