Great for over 40s
This is definitely the boost in Retinol that this product says.
In my 40s and have been using other cosmeceutical Vit A serums for the last 7 years which have been maintaining but I wanted something more powerful for cell renewal, resurfacing, and anti-aging.
This product has definitely done this trick, as I can see and feel a huge difference already and I feel will get better with continued use.
It is strong so I only use 2-3 x per week. Love it!