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FDA Category 2 · restricted from compounding

This compound is on the FDA’s interim Section 503A Category 2 bulks list and cannot be legally compounded by US pharmacies. An HHS announcement in February 2026 signaled intent to restore several peptides to Category 1, but no Federal Register action has been published. Check the FDA PCAC schedule for updates.

Read the full regulatory context
ExperimentalTissue RepairSubQDailyPartial data

KLOW

Compounded extension of GLOW that adds KPV to BPC-157, TB-500, and GHK-Cu for broad repair and anti-inflammatory effects.

§ 01   Overview

Overview

Compounded extension of GLOW that adds KPV to BPC-157, TB-500, and GHK-Cu for broad repair and anti-inflammatory effects.

No controlled data on the blend.

§ 02   Mechanism

Mechanism of action

KLOW adds KPV's NF-κB inhibition to the GLOW blend, providing an additional anti-inflammatory layer alongside the repair and collagen signaling of the base components.

  • 01Broad systemic repair plus anti-inflammatory tone
  • 02Convenience of single-vial stacking

§ 03   Dosing

Dosing protocol

Standard Protocol

Dose Range
12 – 16 units daily
Route
SubQ
Frequency
Daily
Cycle
6–8 weeks

§ 04   Evidence

Evidence & research

Experimental

No controlled data on the blend.

FDA Status

Not FDA-approved.

§ 05   Stacks

Common stacks

§ 06   News

In the news

8 articles from the last 12 months · updates hourly

§ 07   Sourcing

Sourcing & supply

Regulatory status

Restricted from compounding

Placed on the FDA's 503A Category 2 list and cannot be lawfully compounded in the US. No brand pharmacy alternative exists. US buyers encounter only research-use-only (RUO) channels, which the FDA's Intended Use Doctrine treats as unapproved drug sales.

Research-use-only · 1

Research-use-only

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§ 09   Safety

Safety & side effects

Side effects

  • 01As per components

Contraindications

None specified.

§ 10   Questions

KLOW FAQ

What is KLOW?
Compounded extension of GLOW that adds KPV to BPC-157, TB-500, and GHK-Cu for broad repair and anti-inflammatory effects. KLOW adds KPV's NF-κB inhibition to the GLOW blend, providing an additional anti-inflammatory layer alongside the repair and collagen signaling of the base components.
What is KLOW used for?
Reported uses include broad systemic repair plus anti-inflammatory tone and convenience of single-vial stacking. Evidence strength is rated Experimental — see the evidence section for detail.
How is KLOW dosed?
Commonly referenced dosing is 12 – 16 units daily, administered SubQ. This is educational reference only; consult a licensed clinician before use.
What are the side effects of KLOW?
Commonly reported side effects include as per components. This list is not exhaustive.
Is KLOW legal?
Placed on the FDA's 503A Category 2 list and cannot be lawfully compounded in the US. No brand pharmacy alternative exists. US buyers encounter only research-use-only (RUO) channels, which the FDA's Intended Use Doctrine treats as unapproved drug sales. FDA status: Not FDA-approved..

This site is for educational and research purposes only. It does not constitute medical advice. Always consult a qualified healthcare provider before using any peptide or supplement.