Expedition: general discussions.

Well, think about the situation.
Just basic self-care doesn't give you anything.
Basic self-care using paid cosmetics from a specific company slightly reduces penalties to your stipend and self-esteem.
But if you engage in self-care that is not basic, but rather quite diligent, so diligent that it directly interferes with your studies, taking up too much time for it, it reduces the penalties to zero, but there is no talk of any bonuses.
All this is for the default appearance, of course, but if it is true for one case, then your thesis is obviously incorrect. Therefore, simply:

No.