Klow (Acetyl peptide blend) Reconstitution Calculator

KLOW is a four-peptide research blend sold in an 80 mg vial, combining GHK-Cu (50 mg), BPC-157 (10 mg), TB-500 (10 mg), and KPV (10 mg) in a fixed 50:10:10:10 ratio. Each targets a different pathway: GHK-Cu is a copper peptide tied to collagen and skin remodeling, BPC-157 and TB-500 are the tissue-repair backbone studied in tendon, gut, and cell-migration models, and KPV is a small anti-inflammatory fragment of α-MSH. Because there are no trials on the combination itself, everything attributed to it is extrapolated from research on the four components individually.

Add bacteriostatic water slowly down the inside wall of the vial and swirl gently until dissolved — don't spray it directly onto the powder or shake it. As an example, 4 mL of BAC water into the 80 mg vial gives 20 mg/mL of total blend, so a 0.15 mL draw (15 units on a U-100 syringe) delivers about 3 mg of combined peptides. Don't be alarmed if the solution turns blue — that's the copper in GHK-Cu, not contamination. Keep the reconstituted vial refrigerated and use it within roughly 28 days.

The two blends share the same three-peptide core — GHK-Cu, BPC-157, and TB-500 — so the entire difference is one component: KLOW adds KPV, and GLOW doesn't. That makes GLOW a 70 mg, three-peptide blend leaned toward skin and structural repair, while KLOW is the 80 mg, four-peptide version with an added anti-inflammatory angle from KPV, which blocks the NF-κB inflammatory switch. In short, KLOW is essentially GLOW plus KPV, and the choice comes down to whether an inflammatory component matters for what's being studied.

Because all four are pre-mixed in one vial at a fixed ratio, every draw delivers them in the same 50:10:10:10 proportion — you can dial the total volume up or down, but not one peptide independently of the others. That's the tradeoff of any blend: convenient, but you're locked into the ratio. The practical catch is that GHK-Cu makes up most of the mass, so pushing the volume higher to chase more BPC-157 or TB-500 also raises your copper exposure. For dosing each peptide on its own terms, the individual GHK-Cu, BPC-157, TB-500, and KPV pages are the better reference.

None of the four peptides is FDA-approved, and the blend itself has never been through clinical trials, so its safety picture is pieced together from the individual components rather than the mix. Commonly reported effects are mild and local — injection-site redness that fades quickly, and some first-week drowsiness people attribute to GHK-Cu — while the main longer-term watch-item is copper accumulation from the GHK-Cu with extended use. Two frequent misconceptions worth clearing up: KLOW is a recovery-and-repair blend, not a weight-loss product, and the KPV in it doesn't cause tanning despite coming from the same parent hormone as Melanotan.