What Are Bioidentical Hormones?

Bioidentical hormone replacement therapy (BHRT) is a type of hormone therapy that uses hormones that are structurally identical to those produced naturally in the body. The following hormones are typically candidates for BHRT:

  1. Oestrogens: BHRT can be used to replace the hormones oestriol and oestradiol, which are produced by the ovaries and play a role in regulating the menstrual cycle, maintaining bone density, and promoting healthy skin and hair.
  2. Progesterone: BHRT can be used to replace the hormone progesterone, which is produced by the ovaries and helps regulate the menstrual cycle, maintain  a calm mood and promote healthy sleep.
  3. Testosterone: BHRT can be used to replace the hormone testosterone, which is produced by the testicles and plays a role in muscle strength, energy levels, muscle mass and sexual function.
  4. Thyroid hormones: BHRT can be used to replace the hormones triiodothyronine (T3) and thyroxine (T4), which are produced by the thyroid gland and regulate metabolism.

Bioidentical hormones are identical in structure to your body's own, which is how they differ from synthetic hormone-like drugs. This means that your body knows how to use and metabolise them and so they do not have many of the side effects that come with synthetic hormones. 

In addition, there are many studies over the last 30 years that have shown BHRT as a safe and effective strategy for treating hormone imbalances. We use appropriate hormone testing to individualise your dose to your specific needs.

In addition, because you're supplementing the natural hormone levels with the identical hormones, we are able to properly monitor hormone levels through standard lab tests measuring progesterone, oestrogen, testosterone, DHEA and T3/T4 thyroid hormones.

Are You Suffering From Hormone Imbalances?

As we age, our hormones naturally decline – which can cause symptoms that are obviously hormonal while other symptoms may be falsely attributed to other causes.

Often, your doctor may not connect the dots of certain symptoms (like muscle pain, anxiety, insomnia or weight gain) with hormonal imbalances.

They may prescribe painkillers or antidepressants, or simply tell you to put up with it, when none of those recommendations will actually address the underlying issues.

They may also tell you “it’s just a sign of getting older”! Actually we don't have to accept poor health as an inevitable part of getting older: there is a lot you can do to age powerfully, from limiting sugar intake, regulating your nervous system, incorporating good amounts of protein in your diet and ensuring optimal digestion, performing regular resistance exercise with weight training and  - a huge one - developing a positive mindset! 

At London Bioidentical Hormones we excel at testing your hormone levels to better understand which symptoms might actually be hormone-related and crafting a treatment plan that addresses your unique needs.  

BHRT vs Traditional HRT

 Bioidentical hormone replacement therapy uses hormones that are structurally identical to those produced naturally in the body.Traditional hormone replacement therapy (HRT) relies on synthetic hormone-like drugs, for example medroxyprogesterone, which is not identical in structure to your body's own progesterone and has been shown to have unwanted risks that bioidentical progesterone does not have. 

BHRT recognises the uniqueness of each individual. Traditional hormone replacement therapy tends to consider a woman as 'either in menopause or not'. In traditional hormone replacement therapy, commonly a premenopausal woman with hormonal symptoms is not offered any hormone testing and is instead offered the contraceptive pill  even if she does not need contraception. A bioidentical hormone approach would be to test her hormones and just give her what she needs, without resorting to a drug that suppresses her natural ovaries or that can cause a host of side effects.  In traditional hormone replacement therapy,  a woman in perimenopause or a woman with premature ovarian resistance may be given a 'standard menopause treatment' and may not receive ongoing hormone testing. A bioidentical hormone approach would be to take into account her unique situation, tailor her treatment plan accordingly and adjust her treatment as her situation changes. Traditional hormone replacement therapy all too often ignores men completely, whereas a bioidentical hormone approach recognises the wide reaching effects that andropause can have and treats accordingly. 

How Is BHRT Administered?


Creams, gels and patches are a very popular form of hormone delivery. These topical treatments allow for easy absorption through the skin. Creams or gels are applied daily, providing greater opportunity for fine tuning whereas patches are typically applied twice per week.

There are numerous reasons for choosing a transdermal route, including the fact that this route delivers hormones directly to the systemic circulation, whereas orally administered hormones are first metabolised by the liver before entering the systemic circulation. 

Different hormones absorb differently through the skin.  Also different people absorb transdermal hormones more or less effectively, and the efficacy of absorption of any hormone may reduce over time. Symptoms and blood tests will show if someone is not absorbing their hormones as well as they should be. 

An individualised approach is key and its important to work with a qualified BHRT practitioner who is an expert in hormones  and knows the best dose and route of administration for each hormone for your unique situation.  

Once we do the correct testing, we craft a precise BHRT plan so you can live an energised, confident life feeling and looking your best… especially if you feel unheard and literally don’t know what to do next.


Another way to deliver hormone replacement is sublingually, using lozenges which are placed in the mouth and dissolve into the buccal mucosa.Sublingual administration of hormones improves symptoms extensively, rapidly and consistently. 

The disadvantage of lozenges is that they can take time to dissolve. 

Another way to deliver hormones is orally. Some hormones such as DHEA and progesterone work well delivered orally. For oestrogen however other routes are preferable. 

Finding the right form of BHRT delivery is a case-by-case consideration and many clients who are struggling with symptoms see excellent results with sublingual hormones.


Another way to deliver hormones is using pessaries inserted vaginally.

Vaginal changes, which may cause symptoms such as dryness, itchiness and pain during sexual intercourse, can be one of the first symptoms of low oestrogen.

Oestrogen delivered via vaginal pessary can be an excellent route to address vaginal dryness, bladder symptoms or pain on sex.   

Once we do the correct testing, we craft a precise BHRT plan so you can live an energised, confident life feeling and looking your best… especially if you feel unheard and literally don’t know what to do next.

Next Steps and Free Discovery Call

If this resonates and you'd like to get started, please call the clinic on +44203 303 0237 to book in for your initial visit (£699 including comprehensive blood tests).

After your initial visit, if you would be a good candidate for our three month mastery programme you can request a complimentary discovery call to learn more about this. 


Areas Served

London Bioidentical Hormones is a Virtual Practice in the United Kingdom and serves patients throughout the United Kingdom.

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