THE VANGUARD BLOG
Physician-curated deep dives into the science of men's health optimization.
Supplement Guides
At a Glance Rapamycin (sirolimus) is an FDA-approved mTOR inhibitor with some of the most compelling preclinical longevity evidence of any existing compound — it is the best-studied mTOR inhibitor for lifespan extension in multiple mammalian models, including trials where treatment began late…
27 Apr 2026
Supplement Guides
At a Glance Reishi (Ganoderma lucidum) is one of the most extensively researched medicinal mushrooms in traditional and modern pharmacology, used in East Asian medicine for over 2,000 years. Its primary bioactives — triterpenoids and beta-glucan polysaccharides — deliver a well-documented…
27 Apr 2026
Supplement Guides
At a Glance Rhodiola rosea is a Scandinavian and Central Asian adaptogenic herb with one of the strongest clinical evidence bases among botanical adaptogens. Its primary bioactives — rosavins and salidroside — have been studied in over 36 human clinical trials covering stress, fatigue…
27 Apr 2026
Supplement Guides
At a Glance Collagen peptides (hydrolyzed collagen) are short-chain amino acid sequences derived from enzymatic hydrolysis of animal collagen,
27 Apr 2026
Supplement Guides
At a Glance Curcumin is the principal bioactive polyphenol in turmeric (Curcuma longa), responsible for its characteristic yellow color and
27 Apr 2026
Supplement Guides
At a Glance Omega-3 fatty acids — specifically EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) — are long-chain polyunsaturated fatty acids found primarily in marine sources, with the most extensive evidence base of any dietary supplement for cardiovascular health. Triglyceride…
27 Apr 2026
Supplement Guides
At a Glance Resveratrol is a stilbenoid polyphenol found primarily in grape skin, red wine, and Japanese knotweed (the primary
27 Apr 2026
Supplement Guides
At a Glance Vitamin D3 (cholecalciferol) is a fat-soluble prohormone produced in skin upon UVB exposure and found in
27 Apr 2026
Skincare Guides
At a Glance Tranexamic acid (TXA) is a synthetic lysine derivative originally developed as an antifibrinolytic drug for surgical hemostasis. Topically and orally at low doses, it has emerged as one of the better-supported ingredients for treating melasma and hyperpigmentation, acting through…
27 Apr 2026
Skincare Guides
At a Glance Alpha arbutin is a glycosylated derivative of hydroquinone found naturally in bearberry, cranberry, and pear plants. It is a well-tolerated, evidence-supported tyrosinase inhibitor used for brightening hyperpigmentation, melasma, and post-inflammatory dark spots. Its primary…
27 Apr 2026
Skincare Guides
At a Glance Topical peptides are short-chain amino acid sequences designed to signal specific cellular activities in the skin — primarily stimulating collagen and elastin production, reducing dynamic wrinkle depth, or delivering mineral cofactors for structural protein synthesis. The most…
27 Apr 2026
Skincare Guides
At a Glance Melasma is a chronic, relapsing hyperpigmentation disorder characterized by symmetric brown-gray patches on sun-exposed areas, predominantly the face. It is driven by the interaction of UV radiation, genetic susceptibility, and hormonal triggers (particularly estrogen and…
27 Apr 2026
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