can taking vitamin A reduce oily skin, sebum production and acne?

Vitamin B and skin tablets wil work better.

You can take one a day of each,more than that of vitamin B can give you orangy skin,makes you look terrible

You need to discuss this with your doctor, not a bunch of people who don't know your medical history.

You are correct in saying vitamin A can be dangerous is the wrong amount.

The best thing for you to do would be to ask your physician for a referral to a dermatologist, who can help you form an overall plan to control your skins balance. It takes more than a pill - which could make a lot of things much worse.

In my experience vitamin supplementation like this only ever made my acne worse with the exception of vitamin c and none of it made any difference whatsoever in oil production. This would be because it is hormones that control your oil production and taking vitamins aren't going to make much difference in that. Accutane would be the exception but it's not a vitamin; it's synthetic vitamin a, and massive compared to anything you could buy OTC (you would risk toxicity trying to mimic the effects of accutane with vitamin a is what i'm saying).

Supplementing with too much of any one vitamin can cause imbalances, meaning it can actually disrupt the way your body absorbs other vitamins---which can lead to deficiencies, which can lead to a worsening of acne. If you want to reduce your acne and oil output go to a derm or gp. You will be far better off looking to either hormonal treatments or prescription accutane (though keep in mind, hormonal treatments can be taken indefinitely while the same cannot be said of accutane).

I don't know if they use spironolactone off label for acne in the UK but you might want to ask about it if birth control doesn't work for you (a natural form of spiro would be Saw Palmetto but ask your doctor about it before you go dosing yourself massive amounts of it).

*also, after having read your other questions, maybe you should ask your doctor for a hormone test. Maybe you have PCOS or hirsutism (if that is the case spironolactone might be exactly what you need).

***no way Truth! Excess b vitamins cause acne (look it up if you don't believe me).