I was unable to really try this product as the product had already oxidized before I opened it. I use it occasionally for my face and back but I haven't noticed any results, however I recognize I am not a consistent user. The packaging is really good tho.
I notice slight tingling on my face when I use this product. I bought all of this in September. I opened the 15% Vitamin C and EGF ($15/1oz/30ml) in January (4.5 months) and the product had already oxidised. The product has a PAO of 6 months, but the fact that it had already gone bad before opening is really irritating. I reached out and they said tbe change of color is normal but I highly doubt it. The oroduct is originally clear but turned yellow when I opened it.