Guides & Analysis
Longevity Blog
Plain-English guides to online longevity and healthspan care. NAD+ and sermorelin costs, side effects, comparisons, and how to choose the right clinic.
Best NAD Supplement: NR, NMN and NAD+ Compared
Find the best NAD supplement for your criteria: compare NR and NMN product labels, testing claims, human evidence and buying terms before choosing.
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NMN vs NAD: Supplements, Injections and Evidence
NMN vs NAD: compare the precursor with NAD+ itself, oral supplements with injections, human evidence, plan costs and the claims to question.
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Glutathione Injection Side Effects
What injected glutathione can cause, why the safety data is thin, the 2026 recalls, and what a clinic that publishes its price charges for it.
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Rapamycin Side Effects: What the Label Says
Rapamycin (sirolimus) side effects from the FDA label, why longevity use is off-label, what the PEARL trial found, and who prescribes it online.
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Oral Sermorelin: Tablets, Troches and Evidence
Some clinics sell sermorelin as a tablet or troche instead of an injection. What the evidence says about non-injected sermorelin, and what it costs.
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NAD+ Injection Side Effects: What Is Known
What NAD+ injections can cause, what the human evidence actually covers, and what online clinics charge for them, from prices we verified ourselves.
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Sermorelin vs Ipamorelin: The FDA Difference
Both raise growth hormone, but FDA treats them very differently. What sermorelin and ipamorelin are, and what FDA says about ipamorelin.
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Sermorelin vs Tesamorelin: Key Differences
Both act on the GHRH receptor. Tesamorelin is FDA-approved for one narrow use; sermorelin is compounded. What that difference means for you.
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Methylene Blue Side Effects and Interactions
Methylene blue side effects from the FDA-approved label, led by the serious serotonin syndrome risk with SSRIs and SNRIs, plus who prescribes it online.
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Sermorelin Side Effects: What Studies Report
Side effects reported in published sermorelin studies, what the evidence cannot tell you, and what to ask before an online clinic prescribes it.
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Glutathione Injections Online: Which Longevity Clinics Offer It and at What Cost
Compare published glutathione prices, plan commitments and clinic reviews. See which providers disclose treatment-specific costs before intake.
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How Much Does NAD+ Therapy Cost?
Online NAD+ therapy runs $66 to $369 per supply. We read the pages of 28 NAD+ clinics ourselves. Here is what they publish and why the gap is that wide.
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Three Glutathione Recalls in 2026
Three compounding pharmacies recalled injectable glutathione in 2026 over elevated endotoxins. All traced to a contaminated API source.
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NAD+ Nasal Spray: What It Is, What the Research Shows, and What Clinics Charge vs Injection
Compare NAD+ nasal spray and injection plans, published clinic charges and the limits of evidence for each route.
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Online Sermorelin Cost 2026: Entry Price vs. Ongoing Rate
Compare first-month and ongoing sermorelin costs, plan commitments and clinics that leave renewal prices unpublished.
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NAD+ Supplement vs Clinic Protocol
NMN powder starts at $0.55 per gram. A clinical NAD+ protocol runs $66–$199 a month for most providers. Here is what the price difference actually buys.
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NMN vs NR: Cost Per Gram Compared
NMN powder runs $0.55/g. The leading NR capsule brands run $5.44–$8.67/g. Here is what the price difference actually reflects.
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FDA Warns Peptide Compounders: What to Know
FDA issued warning letters to five peptide and NAD+ compounders in 2026, including a sermorelin recall. And what it means for patients.
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