Longevity · Articles & Guides

LongevityArticles & Guides

RENVA covers longevity telehealth providers with independent pricing research and comparison guides. All affiliate relationships are disclosed. No medical advice.

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Longevity

Peptide Therapy 101: A Beginner's Guide to Longevity Peptides

What a peptide actually is, the major categories you'll encounter, and the three questions worth asking about any specific peptide before you research further.

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Longevity

Are Longevity Peptides FDA-Approved? What You Need to Know Before Starting

A July 2026 FDA advisory vote is reshaping this landscape in real time. Here's what's actually approved, what isn't, and what that vote does and doesn't mean today.

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Longevity

How Telehealth Longevity Clinics Work: What to Expect From Your First Visit

From intake to e-prescribing to your medication shipping out — here's what actually happens behind the scenes of a telehealth longevity visit.

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Longevity

What Labs Should You Get Before Starting Longevity Treatment?

For testosterone therapy specifically, a real, established monitoring protocol exists. Here's what a well-run longevity program should actually be checking, and when.

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Longevity

Compounded vs. Brand-Name Longevity Medications: What's the Difference?

Most longevity treatments are compounded, not FDA-approved. Here's what that actually means legally, what oversight looks like, and what questions to ask before starting.

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Longevity

How to Choose a Longevity Telehealth Provider: What to Look For

Licensing, prescribing rules, and consumer protections a legitimate longevity telehealth provider should already have in place — illustrated by a real 2025 FTC enforcement case.

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Longevity

Sermorelin vs. Tesamorelin: What's the Difference?

Both are GHRH analogs that stimulate your own growth hormone — but their regulatory status and evidence base are genuinely different. Here's the real comparison.

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Longevity

NAD+ Injections vs. IV Therapy vs. Nasal Spray: Pros, Cons, and Differences

NAD+ delivery routes aren't interchangeable. Here's what's actually been studied in humans for injection, IV, and nasal spray — and where the evidence runs out.

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Longevity

How Much Does NAD+ Therapy Cost? A 2026 Price Breakdown

No official source tracks NAD+ pricing, and it changes often. Here's what actually drives the cost difference between providers — plus a live, current comparison.

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Longevity

NAD+ vs. Sermorelin: Which Longevity Treatment Is Right for You?

NAD+ and sermorelin support two different biological systems, not two competing treatments. Here's how to think about which one fits what you're actually trying to support.

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Longevity

5-Amino-1MQ: What It Is and Whether It Actually Works

A mechanistically novel compound with consistently positive animal research behind it — here's what the science shows and where human research currently stands.

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Longevity

Vitamin B12 Injections: Do They Actually Boost Energy?

B12 injections are safe and genuinely effective for people with a real deficiency. Here's the honest, NIH-backed answer on what they do for everyone else.

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Longevity

Metformin for Longevity: Why Some Doctors Prescribe It Off-Label

The trial designed to test whether metformin extends healthy human lifespan has been ready since 2016 and still hasn't enrolled a single participant. Here's what the evidence actually shows.

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Longevity

Is Rapamycin Safe for Longevity? What the Research Says

Rapamycin has the strongest animal lifespan evidence of any longevity compound — but the human evidence is limited to one 48-week safety trial. Here's the honest gap between the two.

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Longevity

Methylene Blue for Brain Health: What the Research Actually Shows

Methylene blue's mitochondrial mechanism and early cognition research, plus the FDA boxed-warning drug interaction that matters more than the marketing suggests.

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Longevity

Low Dose Naltrexone (LDN): Uses, Benefits, and What to Expect

LDN's fibromyalgia evidence has gotten weaker as the trials have gotten bigger — including a major 2026 study that found no benefit over placebo. Here's the full trajectory.

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Longevity

Tesamorelin: Uses, Benefits, and Who It's FDA-Approved For

Tesamorelin's actual FDA approval is much narrower than how it's marketed for longevity — here's what's approved, what's been studied for cognition, and what's still genuinely uncertain.

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Longevity

Sermorelin: What It Is, How It Works, and What to Expect

What sermorelin actually does, its real FDA history, and an honest look at the body-composition and sleep evidence — including a finding that contradicts common marketing claims.

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Longevity

What Is NAD+ Therapy? Benefits, Cost, and How It Works

A plain-language guide to NAD+ therapy — what the research actually shows, how the delivery formats differ, and what to know before you pay for it.

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Affiliate disclosure: RENVA may earn affiliate commissions from some provider links. Affiliate relationships do not influence provider scoring or editorial conclusions. Full disclosure →

Medical disclaimer: RENVA is not a healthcare provider. Content is informational and educational only. Always consult a licensed healthcare professional before making health decisions. Full disclaimer →