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Pearl Powder, Shilajit, and Hormones After Menopause, What Two Small Human Trials Found

August 22, 2026 · Optimum Research Team
Pearl Powder, Shilajit, and Hormones After Menopause, What Two Small Human Trials Found

Most of what gets written about menopause and supplements centers on a single hormone, estrogen. Two small human trials, run years apart on opposite sides of the world, quietly tracked something broader. A 2015 Chinese trial gave women oral pearl powder and measured a full hormone panel, not just estrogen. A 2025 Iranian study did roughly the same thing with shilajit. Neither trial proves a supplement fixes menopause. Both are real, both are honestly caveated below, and together they describe a wider hormonal picture than the estrogen-only story usually told.

Why does menopause research usually stop at estrogen?

Estrogen gets most of the attention in menopause research for a practical reason. It is the hormone with the clearest, best-funded decline curve, and it is the one most directly tied to hot flashes, bone loss, and vaginal changes. That focus is defensible, but it leaves out most of the rest of the story. The ovaries do not make estrogen alone. They also produce progesterone and a real share of a woman's circulating testosterone, and follicle-stimulating hormone and luteinizing hormone both rise as the ovaries stop responding to them the way they used to.

The hormones that decline together

A short list of what actually shifts during the menopause transition, beyond the one everyone names first.

  • Estrogen falls, the hormone most commonly discussed
  • Progesterone falls, often earlier and faster than estrogen during perimenopause
  • Testosterone falls gradually, since the ovaries are a meaningful source in women too
  • FSH and LH rise, the pituitary signals working harder to reach ovaries that are no longer answering

Almost nothing written for a general audience tracks all four at once. That is what makes the two trials below worth a closer look, whatever their limits turn out to be.

What did the pearl powder trial actually measure?

What did the pearl powder trial actually measure?

A 2015 randomized controlled trial out of China, reported in Hunan Journal of Traditional Chinese Medicine and later reproduced in full in a 2022 Frontiers in Pharmacology umbrella review of the pearl clinical literature, enrolled 66 women. Half took an oral pearl powder capsule twice daily alongside vitamin C and E for 8 weeks. Half took the vitamins alone. The trial's own primary purpose was a skin-pigmentation outcome, which is not a claim this article makes or needs. The detail worth pulling out is a secondary measurement most coverage of pearl powder skips entirely.

The finding, stated plainly

The trial's own report puts it plainly. Recovery of testosterone, estradiol, progesterone, follicle-stimulating hormone, luteinizing hormone, and prolactin levels was more pronounced in the group taking pearl powder than in the group taking vitamins alone. That is six hormone measures moving together, in one all-female trial, not a single estrogen number in isolation.

Three limits belong right next to that finding, not buried in a footnote. The primary paper is Chinese-language and not indexed with a PubMed identifier, so what is cited here comes from a secondary review's extraction table rather than an independently checked original. The pearl capsule tested was a specific Chinese commercial product, not Optimum's own pearl powder. And the trial was not run in postmenopausal women specifically, so its population is adjacent to our audience rather than identical to it.

What does shilajit's own hormone research show?

What does shilajit's own hormone research show?

Shilajit's largest and best-verified human trial, a 48-week randomized controlled study in postmenopausal women, measured bone density and bone turnover markers, not hormones directly. Separately, a small 2025 study out of Karbala, Iran gave 40 women roughly 200 milligrams of shilajit over three months and compared their estrogen and progesterone levels after treatment against their own levels before treatment began.

What that study can and cannot support

The Karbala results reported estrogen and progesterone measurably higher after treatment than before it. That is a real, human, hormone-panel finding, and it deserves to be stated as one.

  • No placebo group. Every participant is compared only to her own starting point, so time, season, and simple measurement variation cannot be ruled out.
  • Small sample. Forty women is enough to notice a pattern, not enough to call it settled.
  • Low-tier by design, not by dishonesty. The researchers ran an open before-and-after study, a reasonable first step, not a randomized trial.

Say what the study found, and say what it did not prove, in the same breath. It found a measurable shift. It did not prove shilajit caused it beyond the possibility of chance, and it should never be quoted as though it did.

How do the two trials compare, side by side?

Neither trial alone would carry much weight. Set next to each other, the pattern is at least worth noticing.

Pearl powder (Jing 2015) Shilajit (Karbala 2025)
Design Randomized, controlled, 2 arms Before-and-after, no control group
Participants 66 women 40 women
Duration 8 weeks 3 months
Hormones tracked Testosterone, estradiol, progesterone, FSH, LH, prolactin Estrogen, progesterone
Primary source access Chinese-language, reproduced in a 2022 secondary review Iranian journal, 2025
Evidence tier Real RCT design, secondary-source only Weak design, primary source available

Read the table for what it is, not more. It shows two different research groups, in two different countries, independently choosing to measure a hormone panel around an ingredient class rather than estrogen alone. It does not show that either result would replicate in a larger, blinded, placebo-controlled trial, and no honest reading of either paper claims that it would.

Why would the fuller hormone picture matter?

Why would the fuller hormone picture matter?

A woman going through menopause is not just losing one hormone. She is losing several at once, on different timelines, and the symptoms she notices, disrupted sleep, mood swings, low libido, do not map cleanly onto estrogen alone. Progesterone decline in particular is tied closely to sleep quality in the research literature, and testosterone's slow decline is tied to energy and libido. A supplement conversation built entirely around estrogen is answering only part of the question she is actually asking.

The honest version of why this is interesting

This is not a claim that shilajit or pearl powder rebalances all four hormones on command. It is a narrower, still meaningful observation.

  • Two separate research teams measured more than estrogen
  • Both found movement across several hormones, not one
  • Neither trial is strong enough to build a guarantee on
  • Both point toward the same broader mechanism this article is describing, worth continued research rather than a finished case

Is this evidence strong enough to act on?

No, and the honest answer stays no even though the pattern is genuinely interesting. Neither trial would clear the bar of the 48-week, placebo-controlled, bone-density trial that anchors Optimum's strongest published shilajit claim. They are smaller, shorter, and in the pearl trial's case, accessible only through a secondary source rather than an independently verified original paper.

What can be said honestly is this. Two different ingredients, tested by two different research groups on two different continents, both moved a broader hormone panel in a favorable direction in a small human study. That is early evidence pointing at a mechanism worth more research, not a settled result, and not a promise this article is willing to make on your behalf.

Common questions about pearl powder, shilajit, and hormones

Do pearl powder and shilajit increase estrogen levels?

Neither is a hormone, and neither should be described as raising estrogen the way a prescription would. What the two small human trials described here found is a pattern, hormone panels moving more favorably in the treatment groups than in the comparison groups. That is not the same claim as a drug that adds hormone to the body, and this article does not blur the two.

Are these trials strong enough to prove anything?

No, and this article says so directly rather than letting the numbers speak for themselves. The pearl powder trial is a randomized, controlled 66-woman study, which is a real design, but it survives in English only through a secondary review of the Chinese literature, without an independently verifiable primary paper. The shilajit trial has no placebo group and only 40 participants. Both are worth knowing about. Neither is proof.

Is this the same pearl powder and shilajit in the Optimum Trifecta?

No. The pearl powder trial used a different commercial capsule made in China, and the shilajit study used a different regional source than the Altai mountain resin in Optimum Shilajit. Citing a trial on an ingredient class is standard practice in supplement research, but it is never the same as saying our exact product was tested.

Why does progesterone and testosterone matter to a menopause supplement, not just estrogen?

Most menopause content, including a lot of what Optimum has published, centers on estrogen because it is the best-studied hormone in the transition. But the ovaries produce progesterone and a meaningful share of a woman's testosterone too, and all of it declines together. A hormone panel that moves on more than one axis is a more complete picture than an estrogen number alone, even when the evidence behind it is still early.

Is it safe to take pearl powder and shilajit together?

Across every human clinical study conducted on shilajit, zero serious adverse events have been reported. The pearl powder trial referenced here also reported no serious adverse events over its 8-week course. That is a safety record, not a guarantee for every individual circumstance, and this article is educational rather than medical guidance for your specific case.

Optimum Shilajit box

Optimum Shilajit Trifecta

Shilajit and pearl powder work alongside bamboo silica in this formula, sourced from the Altai mountains and third-party lab tested for purity on every batch.

See See the full Optimum Shilajit Trifecta

Sources

  1. Jing, et al. Clinical study of Luhui Zhenzhu capsules on chloasma and hormone levels. Hunan Journal of Traditional Chinese Medicine, 2015. Reproduced in Song et al., Pearls in traditional Chinese medicine, Frontiers in Pharmacology, 2022. https://pmc.ncbi.nlm.nih.gov/articles/PMC9445187/
  2. Karbala shilajit hormone study. Journal of Advance Multidisciplinary Research, 2025. ISSN 2583-6854.
  3. Pingali U, Nutalapati C. Effect of an aqueous extract of shilajit on bone mineral density and bone turnover markers in postmenopausal women with osteopenia. Phytomedicine, 2022. https://pubmed.ncbi.nlm.nih.gov/35933897/
  4. Stohs SJ. Safety and efficacy of shilajit (mumie, moomiyo). Phytotherapy Research, 2014. https://pubmed.ncbi.nlm.nih.gov/23733436/