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Care Path

Longevity and healthy aging, without the hype.

“Peptides and longevity” is not one category. It combines therapies with very different evidence, regulatory status and intended uses. New or popular does not mean proven, appropriate, or available.
Independent, physician-owned St. Louis men’s health practicePersonal care from a consistent physician-led teamServing St. Louis and the Metro East1062 Old Des Peres Road, St. Louis, MO 63131314-394-1660

Overview

Is this worth evaluating?

Men ask about this area for reasonable reasons. What brings the question up is usually:

  • Wanting to stay strong and capable as the years add up
  • Reading about a therapy and wanting a straight answer about it
  • Questions about hormone signaling alongside an existing plan
  • Wanting to know what is actually established and what is not

The useful conversation here is about evidence and regulatory status, not about what is trending.

Evaluation

A careful evaluation comes first.

Nothing in this area is approached generically. Before any of it is discussed as part of a plan, Dr. Mimlitz reviews:

  • Your symptoms, health history and current medications
  • What you are actually trying to address, in specific terms
  • The evidence behind the therapy being asked about
  • Its regulatory status, and whether the product source can be verified
  • Known safety concerns and what monitoring would be required
  • Whether it fits your individual medical needs at all

Options

How the options differ

The items below are grouped by what they act on. They are not interchangeable with one another, and inclusion here is not a statement that a given therapy is appropriate for you.

MMI follows emerging treatments closely. Before a therapy becomes part of a patient’s plan, Dr. Mimlitz considers the evidence, regulatory status, product source, safety concerns and whether it fits that individual’s medical needs.Current enough to understand what is emerging. Careful enough to separate possibility from proof.

Hormone and reproductive signaling

HCG

Human chorionic gonadotropin

A hormone that acts on the same receptor as luteinizing hormone in men. FDA-approved products have specific indications, and whether it has any role depends on the diagnosis, fertility goals and the complete hormone picture.

Gonadorelin

Synthetic gonadotropin-releasing hormone

A synthetic form of gonadotropin-releasing hormone. Availability and appropriate use depend on the clinical situation and on regulatory status. It is not presented here as a replacement for HCG or for testosterone therapy.

Growth-hormone signaling

Tesamorelin

Growth-hormone-releasing factor analog

Its FDA-approved indication is the reduction of excess abdominal fat in adults with HIV-associated lipodystrophy. That is a specific medical indication — it is not an approval for general weight loss, body composition or longevity.

Sermorelin

Growth-hormone-releasing hormone analog

A growth-hormone-releasing hormone analog used in some compounded-care settings. It is not FDA approved for longevity, muscle gain, sleep, recovery or aging.

Where discussed, it is a compounded preparation.

Supportive compounds

NAD+ and glutathione are not peptides, and they are grouped separately here for that reason.

NAD+

Coenzyme

A coenzyme involved in cellular energy processes. Evidence for injected NAD+ as a general longevity treatment remains limited. Sterile sourcing and compounding quality are central concerns.

Injectable preparations are compounded.

Glutathione

Antioxidant

An antioxidant the body produces on its own. Claims that injected glutathione detoxifies the body, prevents aging or treats disease are not supported. Sterile sourcing and compounding quality are central concerns.

Injectable preparations are compounded.

Safety

Safety, limits and monitoring

This is the part of the longevity market that deserves the most caution, and the most candor.

  • Many preparations discussed in the longevity market are compounded. Compounded medications are not FDA approved. The FDA does not review compounded drugs for safety, effectiveness or quality before they are marketed, and a compounded preparation is not a generic version of, or equivalent to, an FDA-approved product.
  • Source, sterility, handling, patient selection and monitoring all matter, and they are not details you can verify from a website or a social media post.
  • The FDA has reported adverse events following the use of injectable NAD+ products, tied to concerns about ingredients unsuitable for sterile compounding, including endotoxin concerns. It has separately reminded compounders about ingredients used for sterile glutathione compounding.
  • Tesamorelin, sermorelin, NAD+, glutathione, HCG and gonadorelin act differently and are not interchangeable.
  • MMI does not offer early or privileged access to unapproved drugs. What MMI does is review meaningful new treatment options as the evidence and lawful availability develop.

What to expect

What to expect at MMI

Dr. Mimlitz personally conducts every initial evaluation and follow-up visit.

MMI is independent and physician-owned, so the MMI care team coordinating your care knows your plan, communicates clearly and supports consistent follow-through without corporate layers in between. Decisions are individual rather than a standard protocol passed between rotating providers.

  1. 01

    Schedule an evaluation

    Tell us what you are noticing. We schedule a focused visit rather than a rushed one.

  2. 02

    Review symptoms and labs

    Dr. Mimlitz reviews your history, symptoms and lab work with you and explains what they mean.

  3. 03

    Agree on a plan

    If treatment is appropriate, you leave understanding the options, the tradeoffs and the next step.

  4. 04

    Follow through

    Care is adjusted over time based on how you feel and what your follow-up labs show.

Questions to bring to your visit

  • What does the evidence actually show for the therapy I am asking about?
  • Is this FDA approved for anything, and if so, for what?
  • If it is compounded, where does it come from and how is quality handled?
  • Does this fit my medical situation, or is there a better place to start?
  • Testosterone therapy

    The hormone questions in this area usually start here.

  • Weight management

    Where medication fits in a weight plan, and where it does not.

  • Answers Center

    A developing, physician-reviewed library. Articles are published as Dr. Mimlitz reviews them.

Start with an evaluation, not a package.

Call the office to schedule a focused visit with Dr. Mimlitz.

Clinical references

This page is general education, not medical advice, and it is not a substitute for an evaluation. The information here draws on the primary sources below.