My eLiquid seems darker then usual, should I be worried?Updated 2 years ago

Darkening of eliquid is normal over time. 

This can happen because of:

• Oxidation
  • Oxidation is when nicotine interacts with and is exposed to oxygen. This "Chemical Reaction" can cause eliquid to darken.  
• Exposure to light and heat
  • Gradually causing the nicotine in e-liquid to change color.
• Flavouring
  • eLiquids use a range of flavours and sweetners so colour shades will naturally vary across brands and variants.