Compounded vs. FDA-Approved Hormones
Direct Evidence Answer
FDA-approved hormones are mass-produced in regulated laboratories with guaranteed purity and potency. Compounded hormones are custom-mixed in pharmacies and lack federal oversight for safety, purity, or consistency. While compounding offers "custom" doses, many medical societies favor regulated options due to the risk of dose variability.
Side-by-Side Comparison
Explanation
The choice between compounded and FDA-approved hormones often comes down to a balance between "customization" and "certainty." FDA-approved bioidentical hormones are manufactured under stringent conditions. If your patch says 0.05mg of estradiol, you can be certain that every patch in that box delivers exactly that amount. This consistency is vital for maintaining steady hormone levels and protecting your uterine lining.
Compounded bioidentical hormones (cBHT) are often marketed as a more "natural" or "personalized" path. Proponents claim that because the dose is mixed specifically for you based on a saliva or blood test, it is safer. However, menopause experts point out that hormone levels fluctuate hourly in perimenopause, making a single "custom" dose based on a snapshot statistically unreliable.
The biggest risk with compounded versions is the "unseen" variability. If a compounded progesterone cream is under-dosed or not absorbed well, it fails to protect the uterus from estrogen's effects, potentially increasing the risk of uterine cancer. Because of this, medical societies like NAMS and the Endocrine Society recommend regulated bioidenticals for the vast majority of women, reserving compounding only for those with specific allergies to standard medication ingredients.
When Each Applies
FDA-approved hormones are the first-line recommendation for safety and reliability. Compounded hormones may be appropriate in rare cases where a patient is allergic to the binders or fillers used in all mass-produced versions.
Evidence & Clinical Context
The 2020 NASEM report (National Academies of Sciences, Engineering, and Medicine) concluded that there is insufficient evidence to support the safety or effectiveness of compounded bioidentical hormones for general menopause management.