I've posted this numerous times before, but I find that there is a misunderstanding in the UK about what other countries consider as "bioidentical". The UK is one of the few countries that actually uses the term to describe "regulated" HRT. Personally I wish the term wouldn't be used at all on MM because it just confuses a lot of people who aren't from the UK. When I first came here I was confused and alarmed by all these people advocating compounded hormones (or so I thought). Perhaps "natural regulated" HRT would be a better term to use here.
The important thing to remember is that in most countries "Bioidentical" is actually just a marketing term coined by the people who advocate and prescribe compounded hormones. It is
not a scientific term, so its use really should be avoided on MM. There is a lot of nonsense posted on the internet promoting compounded (bioidentical) hormones, but all you have to do is look at reputable sites like the Australian Menopause Society, North American Menopause Society, anything written by Prof Studd and Dr Vliet, and this very site, to find that most doctors are not in favour of compounded (bioidentical) hormones.
There are a lot of reasons for this. The one very big reason is that there still isn't any evidence that progesterone used externally (ie as a cream) is strong enough to oppose estrogen. There are also a lot of other negatives like there not being enough control over how the compounded hormones are manufactured by the pharmacists, and the fact that there have been cases where doctors have been found to get kickbacks from the pharmacists for prescribing the compounded hormones, or the doctors have actually had a conflict of interest by owning the compounding pharmacy.
I personally know people who use compounded hormones, and they are quite happy with them. I personally wouldn't take the risk, but it gets down to personal choice.
Here are a couple of links for you. These will be far better for you to read that anything someone posts on the internet (who usually has a vested interest in selling/prescribing this stuff).
http://www.menopause.org/publications/clinical-practice-materials/bioidentical-hormone-therapy/compounded-bioidentical-hormones-what%27s-the-harm-http://www.menopause.org.au/for-women/information-sheets/34-bioidentical-hormones-for-menopausal-symptoms