I started using the Timeless Coenzyme Q10 Serum because I used to use (and love) Timeless’ 20% Vitamin C+ E serum. I no longer use their Vitamin C serum (now I spend $$$$ to use Skinceuticals CE Ferulic) but I am still using their CoQ10 serum.

Mia’s review: 

Similar to their 20% Vitamin C+E serum, I have not experience any irritation or break outs but was concerned about

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