ANTI-AGING · PEPTIDE BLEND
What is KLOW?
Medically reviewed by the G1 Peptides clinical team · Updated October 1, 2026
THE SHORT ANSWER
KLOW is a compounded blend of four peptides: GHK-Cu, BPC-157, TB-500 and KPV. It is the GLOW blend with KPV added, a peptide fragment studied for its anti-inflammatory effects in the gut and skin.
KLOW at a glance
- Type
- Peptide blend
- Also known as
- KLOW blend, GLOW + KPV
- Mechanism
- GLOW blend + KPV (anti-inflammatory α-MSH fragment)
- Status
- Compounded (Rx)
- Half-life
- Minutes to hours (by component)
- Route
- Subcutaneous
- Dosing range in the literature
- 1–4 mg total per dose
- Onset
- 2–6 weeks
- Storage
- Refrigerated (2–8 °C); use within the pharmacy beyond-use date; blue tint is normal
How KLOW works
GHK-Cu signals collagen production, BPC-157 and TB-500 act on tissue repair, and KPV is the active end of the hormone alpha-MSH, which reduces inflammatory signalling inside cells.
What KLOW is studied for
- Skin & collagen
- Tissue repair
- Gut & skin inflammation
Each ingredient has laboratory and animal evidence of its own. The four-peptide combination has not been tested in controlled human trials.
Being studied for something is not proof that it works. Results in individuals vary.
KLOW dosing
Published protocols describe 1–4 mg total per dose, daily or several times weekly, given subcutaneous. Onset is typically reported at 2–6 weeks.
These figures are context from the literature, not instructions. A licensed provider sets the dose and schedule for each patient.
KLOW side effects and risks
- Stinging on injection
- Injection-site reactions
Tell your provider about every medication and condition before starting, and report anything unexpected. See peptide side effects and safety and who should not use peptides.
Is KLOW FDA approved?
A compounded preparation. None of the components is FDA-approved as an injectable.
Approval and trial status change. This page was last reviewed on October 1, 2026.
KLOW at G1 Peptides
G1 Peptides supplies KLOW as vials (80 mg blend) and in pens (KLOW). Prescription products ship only after a licensed provider has reviewed the order.
KLOW questions
- What is KLOW?
- KLOW is a compounded blend of four peptides: GHK-Cu, BPC-157, TB-500 and KPV. It is the GLOW blend with KPV added, a peptide fragment studied for its anti-inflammatory effects in the gut and skin.
- What is KLOW used for?
- KLOW is studied for skin & collagen, tissue repair, and gut & skin inflammation. Each ingredient has laboratory and animal evidence of its own. The four-peptide combination has not been tested in controlled human trials.
- How does KLOW work?
- GHK-Cu signals collagen production, BPC-157 and TB-500 act on tissue repair, and KPV is the active end of the hormone alpha-MSH, which reduces inflammatory signalling inside cells.
- Is KLOW FDA approved?
- A compounded preparation. None of the components is FDA-approved as an injectable.
- What is the typical KLOW dosage?
- Published protocols describe 1–4 mg total per dose, given subcutaneous. This is context from the literature, not a recommendation: a licensed provider sets the dose.
- What are the side effects of KLOW?
- Risks noted for KLOW include stinging on injection and injection-site reactions. Tell your provider about your medications and conditions before starting.
- How long do the peptides in KLOW last in the body?
- The reported half-life is minutes to hours (by component). Onset is typically reported at 2–6 weeks.
- How should KLOW be stored?
- Refrigerated (2–8 °C); use within the pharmacy beyond-use date; blue tint is normal.
For educational purposes only, and not medical advice. These statements have not been evaluated by the FDA. Nothing on this page is intended to diagnose, treat, cure, or prevent any disease. Use any compound only under the guidance of a licensed provider.