The Peptide AppField Guide · Metabolic SeriesField Specimen

Metabolic Category

Testagen

Q: What dose does The Peptide App Clinical Team recommend for Testagen?

Dose: 1 mg subcutaneously daily (community-reported). Schedule: daily. Cycle: 4 weeks on, 12 weeks off. This is clinical-team guidance for reference and does not replace individualized instructions from a licensed clinician.

THE HORMONAL OPTIMIZER

KEDG; Anterior Pituitary Peptide

Testagen is a synthetic tetrapeptide that targets the anterior pituitary gland. It enhances secretion of TSH (thyroid stimulating hormone), LH (luteinizing hormone), and FSH (follicle stimulating hormone), thereby supporting both thyroid function and testosterone production. It's used for andropause, low testosterone, thyroid support, and general hormonal optimization.

Testagen

Testagen Evidence Snapshot

How these guides are reviewed

Regulatory status: Not FDA approved · research use only
Dosing guidance: Reviewed by our clinical team
Linked evidence: Sources pending
Content updated: Sep 15, 2026

Dose and schedule recommendations shown below come from The Peptide App Clinical Team. Research links are provided so readers can inspect the supporting evidence directly.

Quick Answers About Testagen

Is Testagen FDA approved?

No. This profile records Testagen as not FDA approved and for research use only.

More context

Review the regulatory and source details on this page for the current context.

What dose does The Peptide App Clinical Team recommend for Testagen?

Dose: 1 mg subcutaneously daily (community-reported).

More context

Schedule: daily. Cycle: 4 weeks on, 12 weeks off. This is clinical-team guidance for reference and does not replace individualized instructions from a licensed clinician.

What research supports this Testagen guide?

No linked research sources are currently available on this guide.

More context

Treat the profile as provisional until supporting sources are published.

What are the side effects of Testagen?

Reported side effects of Testagen include Rare injection site redness, Rare headache, and Possible water retention.

More context

They are reported or occasional reactions, not a prediction of what any one person will experience.

Is Testagen safe?

Testagen has an editorial safety grade of A (Excellent Safety).

More context

Generally well tolerated with minimal side effects. Safety depends on dose, sourcing, health history and medical supervision, so this page does not call it safe for personal use.

Studied Effects & Mechanisms

TSH Stimulation

Upregulates thyroid hormone synthesis genes

LH/FSH Release

Stimulates gonadotropin production

Testosterone Support

Promotes Leydig cell testosterone synthesis

Immune Modulation

Enhances immune regulation via epigenetic effects

Who is this for

Men with low testosterone

Those with sluggish thyroid function

Anyone experiencing andropause symptoms

Those interested in pituitary support

Testagen Dosing

Dosage

1 mg subcutaneously daily (community-reported)

Schedule

daily

Cycle

4 weeks on, 12 weeks off

Clinical Team Note

Anecdotal regimen, not a validated human dose. Human safety and effectiveness have not been established.

Get your exact syringe units with the reconstitution calculator

Clinical Team Dosing Guidance

Reported Timeline

Week 1-2

Nothing you'll notice yet. The peptide is starting to act on the pituitary.

Week 2-3

Improved energy and metabolism

Week 4

Hormone levels settle at their new baseline.

Hormonal changes may be measurable within 2-4 weeks.

Timelines summarize reported or expected patterns and are not guaranteed individual outcomes.

Testagen side effects and safety

Excellent Safety

Editorial grade A · Excellent

SafetyAExcellent

FDA approval statusNo · research use only

Generally well tolerated with minimal side effects.

May affect hormone levels. Not for use in hormone-sensitive cancers.

Possible side effects

Rare injection site redness · Rare headache · Possible water retention

How to interpret safety grades

The Peptide App

Set up your Testagen schedule

Dose reminders and your schedule, ready the moment you open the app.

Testagen price snapshot

In-stock prices from 21 vendors, checked Oct 14, 2026.

Vendors: 21
Listings: 21
Observed range: $36–$175

Compare all Testagen prices →

Market evidence

Testagen product testing and COAs

We found certificates from some of the Testagen vendors we track. Based on the certificates our crawler found; vendors may publish more than we index. Research on this page describes the molecule. Vendor certificates concern particular market samples or batches; they do not change the research evidence or establish clinical safety, sterility, or suitability for use.

View vendor COAs and pricing →Testing database How to read a COA

The clinic network

Want a clinician's view on Testagen?

Request a free connection to a peptide clinic, by telehealth or in person. A licensed clinician decides whether any treatment is right for you. What peptide therapy involves

Find a peptide clinic