Education only · provider review required
Research pathway · 05
Hormonal & sexual-health peptides, explained
This pathway is unusual: it includes one peptide that is an FDA-approved prescription medicine and several that are not. This page keeps that distinction clear.
Free · about 10 minutes · reviewed by a licensed physician
What people are usually asking
People come here about libido, arousal, and hormone questions that feel awkward to raise. The intake is confidential precisely so they can be raised properly. Before any peptide conversation, a provider will want to rule out the common drivers — medications, mood, relationship factors, cardiovascular and hormonal causes.
Peptides discussed in this context
Listed for education. Inclusion is not a recommendation, and none of these is an FDA-approved treatment for the question above.
PT-141 · Research Overview & Provider Discussion Guide
Bremelanotide · melanocortin research
FDA-approved for one specific indication · other uses off-label
Read the page → 02Melanotan II · Research Overview & Provider Discussion Guide
Melanocortin research
Not approved anywhere · documented safety concerns
Read the page → 03Kisspeptin
Reproductive-axis research
Human physiology studies · not approved
Read the page → 04Oxytocin
Approved for labour · behavioural research
Intranasal use not approved
Read the page → 05Menopausal hormone therapy (oestrogen & progesterone)
Menopausal hormone therapy
FDA-approved products
Read the page → 06Hormone pellet therapy
Hormone pellets
Not FDA-approved (compounded)
Read the page → 07Testosterone therapy
Testosterone therapy
FDA-approved for hypogonadism
Read the page → 08Thyroid basics
Thyroid
Rule out first
Read the page →Where the evidence stands
PT-141 (bremelanotide) is FDA-approved under a brand name for a specific indication in premenopausal women; use outside that indication is off-label. Kisspeptin is studied in reproductive-endocrinology research and is not approved. Melanotan II is not approved anywhere and has documented safety concerns.
Status reflects published research context only and is not a statement of safety, efficacy, or suitability for any person.
Questions worth bringing to a provider
The intake is where individual questions belong. These are the ones that tend to make that conversation useful.
- Could blood pressure, cardiovascular history or current medication rule any of this out for me?
- Is there a hormonal or psychological cause that should be evaluated first?
- For an approved medicine, what is the labelled indication, and does my situation match it?
- What side effects are documented, and how common are they?
What happens if you start an intake
The intake asks about cardiovascular history, blood pressure, medications, hormone history and mood. A licensed provider reviews it and tells you whether an approved medicine, a research context, or a referral is the right next step. Free, about 10 minutes, no obligation.
Frequently asked questions
Is PT-141 approved by the FDA?
Yes — bremelanotide is approved under a brand name for hypoactive sexual desire disorder in premenopausal women. That is a narrow indication; anything outside it is off-label and a provider's decision.
Can men use PT-141?
Use in men is off-label and not part of the approved indication. Whether it is appropriate in any case is a question for a licensed provider, not for this site.
Is this information private?
Vitrex does not collect health information. The intake happens in Doctor G Medical's secure portal, and Vitrex never sees what you enter.
Next step
Next step: a 3-minute confidential intake, reviewed by a licensed provider. No treatment is promised or implied.
Free · about 10 minutes · reviewed by a licensed physician
General education · Not medical advice · Provider approval required