Muscle & Recovery · Rx only

KLOW, prescribed — not just shipped.

Skip the gray-market guesswork. A licensed clinician reviews your health history, a licensed U.S. pharmacy compounds your prescription, and a care team stays with you after it ships.

$256.50 / mo$285 as a single month · $684 for a 3-month supply

A licensed clinician reviews every request. If KLOW fits your health history, they write your prescription and your pharmacy takes it from there.

Licensed U.S. providers Licensed U.S. pharmacy All 50 states + D.C.

Requires an online medical evaluation. Prescribed only when a licensed provider determines it's appropriate.

A licensed clinician in a consultation room
KLOW vial and spec card
KLOW · Rx only
1

Share your health history

KLOW has its own online clinical questionnaire — your history, medications, and goals.

2

Your answers get a careful review

A clinician reads your history and takes the time to get it right before anything is prescribed.

3

Your pharmacy ships

Compounded for your prescription and shipped cold-chain, with care-team check-ins after.

The safe way to take KLOW seriously

KLOW is easy to find online and hard to trust there. Promise works the way medicine is supposed to work — a clinician decides, a licensed pharmacy fills, and someone stays accountable to you.

A real prescription

Prescribed for you specifically, after a real look at your health history — never pulled off a shelf.

A real pharmacy

Your prescription is compounded for you by a licensed U.S. pharmacy — not a mystery vial from an unregulated website.

Real oversight

Temperature-safe shipping, follow-up check-ins, and a care team that answers — before and after your medication arrives.

Product details
Form
Injectable vial (subcutaneous)
Supply
30-day supply
Pharmacy
Compounded and dispensed by a licensed U.S. pharmacy
Availability
Ships to all 50 states + D.C.; not all treatments are available in every state

Four peptides, one protocol

BPC-157, TB-500, GHK-Cu and KPV are compounded into a single vial, so one prescription covers the whole blend instead of four separate ones.

Studied for repair signaling

Interest centers on the signals tissue uses to rebuild — cell migration, new blood-vessel formation, collagen structure and inflammatory tone.

Prescribed, never simply supplied

A licensed provider reads your health history first and prescribes only when treatment is appropriate.

In brief.

KLOW is a compounded four-peptide blend — BPC-157, TB-500, GHK-Cu and KPV — prescribed for recovery and tissue-repair support. It is the wider of the two blends Promise offers: the classic pair of repair peptides plus a copper peptide and a short anti-inflammatory fragment, combined in one vial. Every request starts with an online medical evaluation.

What KLOW is

KLOW belongs to the muscle and recovery category — peptides, which are short chains of amino acids the body already uses as signals. Rather than a single compound, KLOW puts four of them in one compounded preparation: BPC-157, a 15-amino-acid synthetic peptide studied for tissue-repair signaling and gut-lining support; TB-500, a synthetic fragment of thymosin beta-4 studied for cell-migration signaling; GHK-Cu, a naturally occurring copper peptide studied for skin health and collagen signaling; and KPV, a three-amino-acid fragment of alpha-MSH studied in inflammatory-signaling pathways.

Interest in repair peptides has grown faster than the clinical evidence. Most of what is known about these four comes from laboratory and animal work, with human data that is early and limited, and none of them has an approved counterpart on the market. That is the honest posture, and it is why Promise offers KLOW one way only: a licensed provider reviews your health history and prescribes it only when treatment is appropriate for you.

If you and your provider would rather keep the protocol narrower, Wolverine is the same two core repair peptides without GHK-Cu and KPV, and each is also available on its own as BPC-157 or TB-500.

How the blend is studied to work

The two repair peptides work on the same problem from different angles. BPC-157 is studied for its influence on the growth-factor signaling behind new blood-vessel formation, which is how tissue gets the supply it needs while it rebuilds; the same signaling is why it is also studied in the gut lining. TB-500 is studied for its effect on actin, the protein scaffolding cells use to change shape and move — the step that lets repair cells reach the place where they are needed.

The other two widen the blend. GHK-Cu carries copper, and research interest centers on its role in collagen and extracellular-matrix signaling in skin. KPV is the tail fragment of alpha-MSH, a hormone the body uses to turn inflammatory signaling down; the fragment is studied for that same calming role without the pigment-related activity of the full molecule.

None of this is a promise of a result. It describes the pathways researchers are looking at, and what your body does with any of it is individual — which is exactly the judgment your provider is there to make.

How KLOW is prescribed

You start with the KLOW intake form, a clinical questionnaire specific to this blend: your health history, current medications, allergies, past reactions, and what you're hoping treatment will support. It takes a few minutes and there is no login or appointment to book.

A licensed provider reviews what you submit. They prescribe KLOW only when they determine it's appropriate for you. Not everyone qualifies — requests are declined on medical eligibility, and a decline is a real clinical outcome, not a formality. If the provider needs more information before deciding, they'll come back to you for it.

What treatment looks like

If you're prescribed KLOW, it is compounded and dispensed by a licensed U.S. pharmacy, and shipped to you in discreet, temperature-safe packaging. Your protocol — how much, how often, and for how long — is set by your provider, not by this page and not by anything you read elsewhere; it is written for your history and your goals.

Follow-up check-ins are part of treatment rather than an add-on. They're where the protocol gets adjusted, or stopped, based on how you're actually doing. A blend like KLOW supports the fundamentals — sleep, nutrition, training load, the time tissue takes to heal — it doesn't replace them. The work of keeping the promise you made to yourself is still yours; this is one piece of clinical support alongside it.

Common questions

What is KLOW?

KLOW is a compounded blend of four peptides — BPC-157, TB-500, GHK-Cu and KPV — prepared in a single injectable vial by a licensed U.S. pharmacy. Peptides are short chains of amino acids that act as signals in the body, and these four are studied for tissue-repair signaling, cell migration, collagen and skin structure, and inflammatory signaling. Interest in repair peptides has grown faster than the clinical evidence, so Promise offers KLOW only through a licensed provider who decides whether it fits your history.

Do I need a prescription for KLOW?

Yes. KLOW is prescription-only, and there is no way to get it from Promise without one. You complete an online intake form, a licensed provider reviews your health history, and they prescribe only when they determine it's appropriate for you.

Is KLOW FDA-approved?

No. KLOW is a compounded medication and is not FDA-approved, and none of the four peptides in it has an FDA-approved counterpart. Compounded medications are prepared by a licensed pharmacy for an individual patient under a prescription and are not reviewed by the FDA for safety, effectiveness, or quality. That is why a licensed provider has to review your history and decide whether treatment is appropriate before anything is dispensed.

How does the online visit work?

You fill out the KLOW intake form — a clinical questionnaire covering your health history, medications, allergies and goals — with no login or appointment needed. A licensed provider reviews it and prescribes only if KLOW is appropriate for you; they may come back with follow-up questions. If you're prescribed, a licensed U.S. pharmacy compounds and dispenses the medication and ships it in temperature-safe packaging, with check-ins to follow.

What is the difference between KLOW and Wolverine?

Both are compounded recovery blends built on the same two core peptides. Wolverine is BPC-157 plus TB-500, the classic two-peptide combination in one vial. KLOW is wider: it adds GHK-Cu, a copper peptide studied for skin health and collagen signaling, and KPV, an alpha-MSH fragment studied for inflammatory signaling. Which one fits — or whether a single peptide such as BPC-157 or TB-500 on its own fits better — is a decision your provider makes with you during the visit.

Related treatments

Other Muscle & Recovery options a provider may consider.