EGF Restore Mist (Professional Grade)EGF Restore Mist is a High Potency EGF Spray 0. 47oz contains ten times the amount of epidermal growth factor compared to our serum, enhancing cell turnover and supporting the skins natural recovery. We use high level, non diluted 4ppm which is 4 parts of EGF per 1,000,000 parts of formula. Thats considered professional grade . if a company claims % thats not how its measured. Also over 5ppm isnt better .. having too high of a level of EGF can be