Entries by Dr. Matt Olesiak

Best Postbiotic Supplements of 2026: 10 Products Ranked by Science and Value

Best Postbiotic Supplements of 2026: 10 Products Ranked by Science and Value Postbiotics are the bioactive compounds your gut bacteria produce when they break down fiber, and they may matter more than the probiotics themselves. The most studied postbiotic, butyrate, fuels the cells lining your colon, supports gut barrier function, and helps regulate immune response. […]

Viscera-3 vs Bio Complete 3: Which Gut Supplement Wins?

Viscera-3 and Gundry MD Bio Complete 3 both contain CoreBiome tributyrin at 1,000 mg per serving. But Viscera-3 is a focused postbiotic built around a single active ingredient, while Bio Complete 3 combines a prebiotic, probiotic, and postbiotic in one capsule. The right pick depends on whether you want targeted tributyrin support or a broader […]

Viscera-3 vs Ritual Synbiotic+: Postbiotic Supplement Comparison

Viscera-3 and Ritual Synbiotic+ both contain CoreBiome tributyrin, the same patented postbiotic ingredient. But they take very different approaches to gut health. Viscera-3 delivers a concentrated 1,000 mg tributyrin dose focused entirely on colon and gut lining support. Ritual Synbiotic+ spreads its formula across prebiotics, probiotics, and 300 mg of tributyrin in a single daily […]

Tributyrin vs Sodium Butyrate: Which Form of Butyrate Is Better?

Tributyrin and sodium butyrate both deliver butyric acid to your gut, but they do it in very different ways. After years of recommending butyrate supplements to patients and reviewing the published pharmacokinetic data, I can tell you the form you choose matters more than most people realize. This article breaks down exactly how each form […]

Best Postbiotic Supplements (2026): 7 Products Reviewed

After researching and comparing 7 postbiotic supplements across ingredient quality, clinical evidence, dosage, third-party testing, and price per serving, our top pick for 2026 is SANE MD Viscera-3 for its patented CoreBiome tributyrin formula. Viscera-3 delivers tributyrin in a form that resists stomach acid, so more butyrate reaches the colon where your gut actually needs […]

Best Supplements for Aging Skin After 60 (What Science Says)

If you’re over 60 and noticing more wrinkles, dryness, or sagging, you’re not imagining it. Collagen production drops by roughly 1% each year after age 20, and by 60, your skin has lost a significant share of the structural proteins that keep it firm and hydrated. The right supplements can help slow that decline from […]

Does Collagen Really Work for Wrinkles After 60? (What Studies Say)

Short answer: yes, collagen supplements can help reduce wrinkles after 60, but the evidence comes with serious caveats you should know about before spending your money. I’ve spent weeks reading through the actual clinical trials, and the picture is more complicated than supplement companies want you to believe. Here’s what I found: the studies showing […]

Collagen Peptides for Seniors: Benefits, Dosage, and What to Look For

After age 60, your body produces roughly 50% less collagen than it did in your 20s. That steady decline affects your skin, joints, bones, and muscles all at once. Collagen peptides, a hydrolyzed (pre-broken-down) form of collagen protein, can help fill that gap when taken as a daily supplement. This guide covers what the clinical […]

Skincare Routine for 60-Year-Old Woman (Step-by-Step)

A good skincare routine for a 60-year-old woman starts with a gentle cleanser, followed by a hydrating serum, targeted treatment (like retinol), rich moisturizer, and daily SPF 30+ sunscreen. At night, swap the sunscreen for a repair cream or eye treatment. Below, I walk through each step with specific product picks and the science behind […]