Related Topics: Bioidentical Hormones, Menopause, Natural Progesterone

Do You Know The 4 Key Differences Between Progesterone and Progestins?

Do you know the difference between a synthetic progestin and the natural hormone, or why it’s important for your health that you do?

AnnA Rushton

There really should be no confusion; but pick up any mainstream article about HRT and you will see the immediate problem. There is an assumption in the media – and often by doctors themselves – that they are interchangeable and mean the same thing.

They seem to believe that it does not matter which one you use but they are wrong. The synthetic forms are normally called progestins or progestogens, it differs from country to country, but they are exactly the same thing.

Difference No 1

This is the easiest, most obvious and the simplest. One is natural the other is a chemical synthetic. The natural hormone is progesterone and the manufactured progestins/progestogens that appear in hormone therapy are chemicals.

Difference No 2

Progesterone is the hormone naturally produced by women in the ovaries. Progestins/progestogens mimic the effect of the natural hormone, but they are not identical to that produced in the body and so not recognised by it as such.

It is a little bit like a key that has been copied from the original but when you put it in the lock does not quite fit or turn.

Progesterone is immediately identified by the body as natural to it, as the right fit so to speak, but the synthetics are not.

Difference No 3

This is a crucially important one. Natural progesterone has not been identified with any side effects, but the synthetics have a whole host that are associated with them.

They are known to increase risks in hormonally related cancer such as in the breast, uterus and ovary, disorders of blood clotting. They have been linked to strokes, heart problems and deep vein thrombosis, and can worsen mood, PMS and depression in vulnerable women.

Difference No 4

Progestins/progestogens cannot reproduce exactly the effect of progesterone in the body, but a bio-identical natural progesterone cream can. Although not manufactured in the body it is recognised by it as being absolutely bioidentical to the real hormone.

A hormone may be claimed to be natural, such as the oestrogen in the HRT product Premarin, but that is derived from the urine of pregnant mares. It natural to horses not humans.

Helpful information:

However you choose to journey through the menopause, whether with HRT, a coil or the Pill to help with some of the symptoms such as heavy bleeding it is good to know you do have a choice.

Bioidentical  hormones are safe and effective but without the side effects or health risks associated with their synthetic equivalents. You may wish to supplement with bioidentical progesterone, or a combination cream with bioidentical oestrogen as well if you have symptoms that need that extra help for conditions such as vaginal dryness.

It helps to know just what your options are and exactly what is in the formulation you are using.


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Please feel free to discuss this article in the comments section below, but note that the author cannot respond to queries made there.
Comments 3
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AnnA Rushton | 6:11 pm, February 21st, 2016

Dr Bond is still practicing so you can contact her via this link:

AnnA Rushton | 6:55 pm, February 20th, 2016

Dr Bond is still seeing patients and you can contact her via this link:

Brownie | 5:31 pm, February 19th, 2016

I have been seeing the wonderful Dr Dame Shirley Bond, but she is now semi retired from her Harley Street practice, where else will I be able to obtain Pro Juven the Progesterone cream, and from whom?I am running out and so need it….together with the oestrogen inserts it has amazing results.
Would be most grateful , I’m in London

Thank you


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