What a 0/5 rating means
On the comedogenic scale, a 0 means it will not clog pores for essentially anyone, including very acne-prone skin. That places Tocopheryl Acetate in the range most people, including many with acne-prone skin, tolerate well.
One thing the number cannot tell you is concentration. Ingredients are listed in descending order, so Tocopheryl Acetate near the end of a label is present in tiny amounts and matters far less than the same ingredient near the top.
About Tocopheryl Acetate
It is an antioxidant added to protect the formula and the skin. The stable acetate ester of vitamin E, rated 0/5 and considered non-comedogenic.
On a label it can read as Tocopheryl Acetate, Vitamin E Acetate, D-Alpha Tocopheryl Acetate — worth knowing when you scan an ingredient deck.
Tocopheryl Acetate in makeup and skincare
It rounds out serums, moisturisers, and some long-wear makeup. Its irritancy is rated separately at 0/5, which is low.