Featured — Herbs
White, Red and Black Kwao Krua: What’s the Difference?
White, red and black Kwao Krua are three different Thai plants, not three strengths of one herb. Here's how to tell them apart.
Featured — Herbs
Pueraria Mirifica Dosage: How Much & How to Take It
There is no single Pueraria Mirifica dosage. Here is how to read the label, compare forms, and dose safely.
Featured — Research & Studies
Revolutionary Advancements with Nanotechnology in St.Herb’s New Product Development
In 2019, St. Herb Cosmetics partnered with Thailand’s National Nanotechnology Center (NANOTEC) to bring nanotechnology into its product development, leading to the Nano Breast Cream and Nano Breast…
Featured — Herbs
Pueraria Mirifica Side Effects: A Complete Safety Guide
Pueraria Mirifica can cause side effects because it contains biologically active phytoestrogens that interact with estrogen receptors. Reported effects include breast tenderness, vaginal spotting, menstrual changes, and dizziness.…
The Stherb Journal
Stories in Skin, Wellness & Botanicals
Herbal science, rituals and honest guidance from the Stherb team — grounded in Thai botanicals and real research.
Trending This Week
How Herbal Supplement Tolerance Develops and What Cycling Strategies Can Help
Enkleia thorelii and Cellular Energy at the Mitochondrial Level: An In-Depth Look
Pueraria mirifica and Skin Hydration: The Hyaluronan Production Link
Why Fat-Soluble Phytoestrogens Absorb Better When Taken with Dietary Fat
Showing 12 of 260 articles
Herbs
White, Red and Black Kwao Krua: What’s the Difference?
White, red and black Kwao Krua are three different Thai plants, not three strengths of one herb. Here's how to tell them…
Herbs
Pueraria Mirifica Dosage: How Much & How to Take It
There is no single Pueraria Mirifica dosage. Here is how to read the label, compare forms, and dose safely.
Research & Studies
Revolutionary Advancements with Nanotechnology in St.Herb’s New Product Development
In 2019, St. Herb Cosmetics partnered with Thailand’s National Nanotechnology Center (NANOTEC) to bring nanotechnology into its product development, leading to the…
Herbs
Pueraria Mirifica Side Effects: A Complete Safety Guide
Pueraria Mirifica can cause side effects because it contains biologically active phytoestrogens that interact with estrogen receptors. Reported effects include breast tenderness,…
Wellness
How Herbal Supplement Tolerance Develops and What Cycling Strategies Can Help
Quick answer Herbal supplement tolerance can develop when the body adapts to repeated exposure through mechanisms such as receptor downregulation, faster compound…
Herbs
Enkleia thorelii and Cellular Energy at the Mitochondrial Level: An In-Depth Look
Quick answer Enkleia thorelii has traditionally been used in Thailand for vitality, endurance, and resistance to fatigue. Its possible connection to cellular…
Herbs
Pueraria mirifica and Skin Hydration: The Hyaluronan Production Link
Quick answer Pueraria mirifica may support skin hydration through its phytoestrogenic activity. Estrogen signalling can influence hyaluronan synthase enzymes involved in producing…
Herbs
Why Fat-Soluble Phytoestrogens Absorb Better When Taken with Dietary Fat
Quick answer Taking Pueraria mirifica with a meal containing dietary fat may improve absorption of fat-soluble phytoestrogenic compounds by supporting bile release…
Men Series
Butea superba and Testosterone Biosynthesis: The Pathway Step by Step
Quick answer Testosterone biosynthesis is the multi-step process that converts cholesterol into testosterone, primarily in the Leydig cells of the testes. Research…
Herbs
Pueraria mirifica and the Hypothalamic-Pituitary-Ovarian Axis: What It Means
Quick answer The hypothalamic-pituitary-ovarian (HPO) axis coordinates female reproductive hormones through communication between the hypothalamus, pituitary gland, and ovaries. Pueraria mirifica contains…
Herbs
Kaempferia parviflora and Lean Muscle Preservation During Low-Activity Periods
Quick answer Kaempferia parviflora may be relevant to lean muscle preservation during low-activity periods because its polymethoxyflavones have been studied for effects…
Herbs
Circadian Rhythm and Herbal Supplementation: Does the Time of Day Matter?
Quick answer Circadian rhythms influence hormone patterns, sleep, metabolism, and processes involved in how compounds are absorbed and metabolised. Research on the…
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