Physician-reviewed on every orderCompounded in the USADispensed by licensed U.S. pharmaciesDiscreet, tracked delivery nationwideOne honest price — evaluation included
PEP RX Oxytocin + Methylene Blue — physician-supervised, U.S.-made peptide therapy
Physician-reviewed
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Oxytocin + Methylene Blue

100 IU / 0.010mg (15mL)Intranasal spray

An intranasal blend combining oxytocin, a naturally occurring nonapeptide, with methylene blue, a redox-active small molecule. It is understood to touch social-affiliative signaling and cellular bioenergetics, and is used under physician supervision as a wellness-oriented preparation.

$442One-time
Physician evaluation included
  • Personalized guidance, one-on-one with your care team.
  • If a physician determines it isn't the right fit, you pay nothing.
Automatic Monthly Refills

$398 / month

Start on refills

Same vial, shipped monthly — a lower rate for staying under continuing physician care. Skip or cancel anytime.

Cancel or pause anytime · Ships only after physician approval

You complete a secure medical intake first. A licensed U.S. physician reviews it — typically within 24 to 48 hours — and you are only charged once a physician approves your protocol. Each completed screening remains valid for 12 months. See how it works · Meet our physicians

MOA

Mechanism of action

How Oxytocin + Methylene Blue works at the receptor, signaling, neural, and regulatory levels — shared to inform, never to promise an outcome. Your physician confirms what is appropriate for you.

Receptor Activation

Oxytocin is understood to act primarily at the oxytocin receptor (OXTR), a Gq/11-coupled G-protein-coupled receptor expressed across hypothalamic, limbic, and peripheral tissues, with modest cross-reactivity at vasopressin receptors. Methylene blue is not thought to act through a classical receptor but instead engages redox-active targets, notably the mitochondrial enzyme cytochrome c oxidase, where it is understood to serve as an alternative electron carrier. The blend pairs a receptor-mediated signaling peptide with a small molecule that acts at the bioenergetic level.

Cell Signaling

At OXTR, downstream activation of phospholipase C generates IP3 and diacylglycerol, which is understood to drive intracellular calcium mobilization and protein kinase C activity. Methylene blue is understood to influence the nitric-oxide/soluble guanylate cyclase/cGMP axis and to support electron flow within the mitochondrial respiratory chain, associations that underpin interest in cellular energy handling and redox balance. These distinct signaling profiles show how a calcium-coupled peptide pathway and a redox-modulating molecule may be combined.

Neural Activity

Oxytocin is understood to contribute to central signaling in regions tied to social recognition, trust, and affiliative behavior, and intranasal delivery is understood to help it reach relevant neural circuits. Methylene blue is associated with neural and cognitive endpoints, with proposed relevance to mitochondrial function in neurons, though such findings remain preliminary. The pairing is considered for combined neural-signaling and bioenergetic relevance rather than any established clinical neural effect.

Regulatory Pathways

Systemically, oxytocin is understood to contribute to autonomic and neuroendocrine signaling, including stress-response modulation and smooth-muscle activity, with additional relevance to immune and metabolic crosstalk. Methylene blue is understood to relate to redox regulation, oxidative-stress balance, and vascular tone via its nitric-oxide-related activity. The combined preparation is considered for how peptide-driven regulatory signaling and small-molecule redox modulation may interact at a systemic level.

What to expect

Built around you, never one-size-fits-all

Who it's for

A physician might consider this preparation for an adult interested in support for emotional connection, mood, and cellular energy, who prefers a supervised, education-first approach rather than a self-directed regimen.

What's included

Includes the compounded intranasal vial preparation, a licensed physician evaluation to assess suitability, and personalized usage guidance with ongoing clinical oversight.

Ongoing care

Your physician stays involved beyond the first order — check-ins, dose guidance, and refills under continuing supervision.

The Rx standard

Prescribed, compounded, supervised.

This is not a research chemical bought from an anonymous importer. Every therapy is prescribed by a licensed physician and compounded for you by a licensed U.S. pharmacy — American-made, on your order.

  • Compounded by licensed U.S. pharmacies to USP standards
  • Compounded by a licensed U.S. pharmacy on your prescription
  • Reviewed and prescribed by U.S.-licensed physicians
  • Cold-chain handling and discreet, tracked delivery

Begin Oxytocin + Methylene Blue with a physician evaluation

One honest price, evaluation included. A licensed physician reviews your case before anything ships — with a full refund if it isn't the right fit.