Dads money!!

If you have to ask, then you have your own doubts.

Let your conscience be your guide.

What are your parents going without to give you this education.
Would they go without it for you to have the skin treatment.

Conversely, are you going without basic things like food to get the money to have the skin treatment that is so important to you?
only you can answer those questions.

Can you earn the money yourself for the treatment?

I didn’t understand your first two points. Please could you rephrase?

No not at the moment as I’m in full time education

It's fine to spend some of the money that your father has given to you on your skin treatment.

When my best friend was at uni her parents gave her a very generous monthly allowance & paid for her rental accomodation, mobile phone contract and car insurance.
She spent the allowance on books, groceries, clothes, perfume, beauty treatments, restaurant meals, socialising, art and cookery classes.

So if have £2300 monthly allowance for 6-7 months and I spend £1350 out of it on hair prp. Is it alright to do so without telling my parents? I’m asking if it’s alright morally otherwise in terms of managing other expenses I can manage that all in the remaining amount.