Hi Bella247!
"Traditional menopausal hormone therapy or MHT is only effective about 50 percent of the time for GUSM as the resulting levels of estrogen are often not high enough in the vaginal and vulvar tissues."
If you want to read more, these are excerpts from The Menopause Manifesto by Dr. Jen Gunter:
"Vaginal estrogen is considered the gold standard for GUSM, meaning that of all the pharmaceutical and over-the-counter options, it’s by far the most well-studied and effective. Another hormone called dehydroepiandrosterone or DHEA is a recent addition to prescription vaginal therapies for GUSM. DHEA is one of the hormones in the process that converts cholesterol to estradiol (see chapter 3). DHEA doesn’t have any direct effect on tissues itself; it’s useful because it’s converted inside the cells into testosterone and estrogen. Vaginal estrogens and DHEA increase blood flow, reverse tissue fragility, restore lubrication, and repopulate the vaginal microbiome with beneficial bacteria. They’re effective at treating vaginal dryness, vaginal itching, pain with sex, and may help with changes in odor.
Traditional menopausal hormone therapy or MHT is only effective about 50 percent of the time for GUSM as the resulting levels of estrogen are often not high enough in the vaginal and vulvar tissues. As there are greater risks with MHT (albeit those risks are small) compared with vaginal therapy and MHT is only helpful approximately half the time, MHT is not recommended for the sole purpose of treating GUSM. However, a woman starting MHT for other reasons, for example hot flushes, may wish to wait two to three months to see how that therapy helps her vagina and vulva before deciding on adding other approaches."
"Vaginal estrogen comes in a wide range of doses as well as methods of application, including creams, a vaginal ring, vaginal tablets, and vaginal suppositories, so customization to an individual woman’s needs is possible. Vaginal DHEA is a vaginal suppository and is available in one dose."
"Vaginal hormones haven’t been studied head to head (or perhaps vagina to vagina?), so it isn’t possible to say product A is superior to product B. Pharmaceutical companies rarely put their product on the line with a direct comparison to a competitor—what if their product comes out the same or inferior? Consequently, we typically only see studies from drug companies that compare their results with placebo, and almost always these results show benefit. When independent researchers with funding from non-Pharma sources look at pharmaceuticals, their results are not always as impressive. For example, when the 10 mcg estradiol tablet was studied by independent researchers, it didn’t perform any better than the placebo moisturizer. It’s unknown if this is formulation-specific (some women report the tablets don’t always dissolve well) or if there is another reason."
Hope you find something that works for you soon.