Onto or To in this Statement

Hello, zacK, and welcome to the Grammar Exchange.

@zacK posted:

Me and my friend, are having a grammar debate currently.

In standard English, we do not use objective-case pronouns (such as me) in subject position; we use subjective-case pronouns (such as I). In addition, in modern English, subject and predicate should not be separated by a comma:

• revised: "My friend and I are having a grammar debate currently."

Notice that I have also reversed the position of the first-person pronoun and the noun phrase "my friend."

@zacK posted:

Is it:

X. Has an excessive quantity of make-up applied to his/her/their face

Or:

X. Has an excessive quantity of make-up applied onto his/her/their face

The normal preposition to use there is "on," not "onto."

I'd like to add, if I may, that "to" and "onto" could be used to refer to the action of applying makeup, not to the state of having makeup already applied.

- She applied an excessive quantity of makeup to / onto her face.

- She has an excessive quantity of makeup on her face.