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Guide5 min readFacts checked 26 September 2026

How much bac water for an 80 mg KLOW vial?

There is no standard amount, and the water never changes how much of each peptide is in the vial. It only sets how strong the mix is, which decides how many units hold each amount. What a dose holds comes from your vial's COA, not the name on the label. Divide each peptide's mg by the mL of water, and you have its strength.

Claritide holds a blend as one vial and shows what every draw holds, peptide by peptide.

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What is in a KLOW, GLOW or Wolverine vial?

The names are sellers' labels, not recipes. Most listings describe them like this:

  • KLOW: GHK-Cu, KPV, BPC-157 and TB-500, usually 80 mg in all.
  • GLOW: GHK-Cu, BPC-157 and TB-500, usually 70 mg in all.
  • Wolverine: BPC-157 and TB-500, sold as two vials or blended in one.

The split between the peptides is where sellers differ. One common KLOW recipe has 50 mg of GHK-Cu and 10 mg each of the other three. Another seller lists 30 mg of GHK-Cu, with 20, 20 and 10 mg of the others. So the list that counts is the certificate of analysis, or COA, for your batch.

Claritide's KLOW, GLOW and Wolverine pages show every reading, and what each peptide is there for.

Does more bac water change the dose?

It changes how much each unit holds, never the amount in the vial. The water sets how strong the mix is. Divide the vial's total mg by the mL of water. An 80 mg vial in 2 mL is 40 mg per mL. In 4 mL it is 20 mg per mL.

More water means every unit holds less of every peptide, so the same amount takes more units. Less water means smaller draws, and under 2 units one line on the syringe is a big share of the draw. The split between the peptides stays the same, however much water you add.

People describe using anything from 3 to 10 mL for an 80 mg KLOW vial. None of these is a standard, and we found no study that compared them.

The split, from the COA

  • GHK-Cu 50 mg
  • BPC-157 10 mg
  • TB-500 10 mg
  • KPV 10 mg

Mixed with 2 mL40 mg per mL in all

What one unit holds of each peptide, mixed with 2 mL
PeptideIn each unit
GHK-Cu250 mcg a unit
BPC-15750 mcg a unit
TB-50050 mcg a unit
KPV50 mcg a unit

Mixed with 4 mL20 mg per mL in all

What one unit holds of each peptide, mixed with 4 mL
PeptideIn each unit
GHK-Cu125 mcg a unit
BPC-15725 mcg a unit
TB-50025 mcg a unit
KPV25 mcg a unit
The same 80 mg KLOW vial, mixed with 2 mL and with 4 mL of bac water. At 4 mL, each unit holds half as much of every peptide. The split between them stays the same.

How do I work out each peptide in a dose from the COA?

Do it once for each peptide, with the numbers from your COA:

  1. 1.Write down each peptide's mg.
  2. 2.Divide it by the mL of water you added. That is the peptide's own strength, in mg per mL.
  3. 3.Divide that by 100 to get what one unit holds, since one unit is 0.01 mL.
  4. 4.Multiply by the units in your draw.

For 50 mg of GHK-Cu mixed with 2 mL: 50 ÷ 2 = 25 mg per mL, and 25 ÷ 100 = 0.25 mg, or 250 mcg, in each unit.

Every peptide in the vial comes along in every draw, so twice the units means twice of each. How many units to draw is not a number this page gives. Claritide publishes no dose for any blend.

Why can two KLOW vials give different amounts?

Because the name does not fix the split. Two vials can both say KLOW and both hold 80 mg, yet hold different amounts of each peptide.

Take the two recipes above, each mixed with 2 mL. Each unit from the second vial holds twice the BPC-157 and twice the TB-500 of the first, and 40% less GHK-Cu. The KPV is the same. Nothing on either label says so.

So read the COA with every new vial, and above all when you change sellers. Write each peptide's mg down before you mix, so the math starts from your own vial.

Two KLOW recipes, each mixed with 2 mL: the mg in the vial and what one unit holds
PeptideA common recipe80 mg in allAnother seller's recipe80 mg in all
GHK-Cu250 mcg a unit50 mg in the vial150 mcg a unit30 mg in the vial
BPC-15750 mcg a unit10 mg in the vial100 mcg a unit20 mg in the vial
TB-50050 mcg a unit10 mg in the vial100 mcg a unit20 mg in the vial
KPV50 mcg a unit10 mg in the vial50 mcg a unit10 mg in the vial
Two 80 mg vials sold as KLOW, each mixed with 2 mL. Compared with the first, each unit of the second holds 2 times the BPC-157 and TB-500, 40% less GHK-Cu and the same KPV. Only the COA shows which one you have.

Why do some people use separate vials instead?

To set each amount on its own. In one vial the split is fixed, so drawing more of one peptide draws more of all of them. With separate vials, each peptide gets its own draw.

People weigh this both ways. One person leaned toward KLOW because they "only want to poke myself once". Another said: "I never understood the blend considering the dose and timing are so far different."

A blend also means that if something feels wrong, you cannot stop one peptide without stopping all of them. Separate vials mean separate shots.

We found no study showing that two research peptides are safe to mix in one syringe. The lesson on what never to combine has more.

Questions people ask

What peptides are in KLOW?

Most listings name four: GHK-Cu, KPV, BPC-157 and TB-500. Sellers can change the split between them under the same name. The COA for your batch is the list that counts.

How much GHK-Cu is in KLOW?

It depends on the seller. In the recipes we found, GHK-Cu is the largest part of the vial, but its share differs from seller to seller. Your COA gives the number for your batch.

Is there a peptide calculator for blends?

Claritide's free web calculator works one peptide at a time. The Claritide app holds a blend as one vial: you enter each peptide's mg from the COA and the water you added. It then shows what each draw holds of every peptide.

How long is KLOW good for after reconstitution?

We found no stability study of KLOW once mixed. Vials mixed with bac water get 28 days. That is CDC's limit for keeping an opened vial sterile, not a test of these peptides. Claritide's KPV page also notes that sources disagree on whether KPV belongs in bac water.

Sources

Every fact above comes from one of these, checked on 26 September 2026.

  1. Claritide stacks: KLOW, every composition reported under the nameclaritide.app · read 26 September 2026
  2. Claritide stacks: GLOW, the two compositions reported for a 70 mg vialclaritide.app · read 26 September 2026
  3. Claritide stacks: the Wolverine stack, sold as two vials or oneclaritide.app · read 26 September 2026
  4. Claritide lesson: Reading a blend label, and what the name hidesclaritide.app · read 26 September 2026
  5. Claritide: the free reconstitution calculator and its answersclaritide.app · read 26 September 2026
  6. Claritide library: KPV, including its storage noteclaritide.app · read 26 September 2026
  7. CDC: Preventing unsafe injection practices, the multi-dose vial rule (updated 26 March 2024)cdc.gov · read 26 September 2026
  8. What people describe: "For 80mg of Klow, 50mg is GHK-Cu, we reconstitute with 10ml of BAC, instead of 3ml", r/Peptides, 21 September 2026reddit.com · read 26 September 2026
  9. What people describe: "only want to poke myself once", r/Peptides, 8 September 2026reddit.com · read 26 September 2026
  10. What people describe: "I never understood the blend considering the dose and timing are so far different", r/NTNPerformance, 15 September 2026reddit.com · read 26 September 2026

Every peptide in your blend, worked out from your own COA, in one app: Claritide for iPhone.