Peptide Blend Dosing: How to Calculate Per-Peptide Doses in GLOW, KLOW, and Wolverine Stacks
Pre-mixed peptide blends like GLOW, KLOW, and the Wolverine Stack are everywhere now. One vial, multiple peptides, simpler protocol. But the math is different from single-peptide vials โ and getting it wrong means underdosing one compound while overdosing another.
This guide covers exactly how blend dosing works: what's in each popular blend, how to calculate per-peptide doses from a locked ratio, reconstitution math, and the tools that do it for you.
How Blend Dosing Differs from Single Peptides
With a single-peptide vial, you control everything: how much water to add, what concentration you want, and exactly how many mcg per injection. You pick your dose, then calculate the draw volume.
Blends flip this. The manufacturer has already locked the ratio between peptides. When you draw 0.1 mL, you're getting a fixed proportion of each compound. You can't increase one without increasing all of them.
This means your dosing target is whichever peptide in the blend has the narrowest effective range. You dose to that compound and accept whatever the others land at.
Key concept: Locked ratios
In a 70 mg GLOW vial with GHK-Cu (41.97 mg), TB-500 (18.68 mg), and BPC-157 (9.35 mg), the ratio is roughly 4.5 : 2 : 1. Every injection delivers that same proportion. You cannot adjust individual compounds without switching to separate vials.
Popular Blends: What's Inside Each Vial
GLOW (70 mg vial)
Focus: Skin, hair, and tissue regeneration
| Peptide | Amount | % of Total | Primary Role |
|---|---|---|---|
| GHK-Cu | 41.97 mg | 60% | Collagen synthesis, skin remodeling |
| TB-500 | 18.68 mg | 27% | Systemic tissue repair |
| BPC-157 | 9.35 mg | 13% | Localized healing, gut repair |
KLOW (80 mg vial)
Focus: Advanced tissue repair + inflammation reduction
| Peptide | Amount | % of Total | Primary Role |
|---|---|---|---|
| GHK-Cu | 30 mg | 37.5% | Collagen, anti-aging |
| BPC-157 | 20 mg | 25% | Targeted tissue repair |
| KPV | 15 mg | 18.75% | Anti-inflammatory |
| TB-500 | 15 mg | 18.75% | Systemic healing |
Wolverine Stack (BPC-157 + TB-500)
Focus: Injury recovery, joint/tendon healing
| Peptide | Common Amount | Typical Dose |
|---|---|---|
| BPC-157 | 5โ10 mg | 250โ500 mcg/day |
| TB-500 | 5โ10 mg | 750 mcgโ2 mg 2ร/week |
The Wolverine Stack is sometimes sold pre-mixed (locked ratio) and sometimes as separate vials. If you have separate vials, you have full control over each dose. If pre-mixed, the blend math below applies.
CJC-1295 / Ipamorelin Blend
Focus: Growth hormone release, recovery, body composition
| Peptide | Common Amount | Typical Dose |
|---|---|---|
| CJC-1295 (no DAC) | 2โ5 mg | 100โ300 mcg/day |
| Ipamorelin | 2โ5 mg | 100โ300 mcg/day |
This is one of the most popular GH-boosting blends. CJC-1295 (without DAC) extends the GH pulse while ipamorelin initiates a clean release without spiking cortisol or prolactin. Often sold pre-mixed in a 1:1 ratio.
โ ๏ธ Do not mix peptides yourself
The blends above are commercially manufactured with tested compatibility and stability. That does not mean you can combine random peptides in the same vial or syringe. As a general rule: if it doesn't come pre-blended from a reputable source, don't mix it.
Peptides can degrade each other, require different pH levels, or compete for the same receptors. Common examples of things you should never combine:
- Any two GLP-1 agonists (e.g., semaglutide + tirzepatide). They act on overlapping receptors and combining them without medical supervision is dangerous.
- CJC-1295 with DAC + CJC-1295 without DAC. The DAC version provides sustained release. Mixing both creates unpredictable GH elevation.
- Redundant GH secretagogues (e.g., GHRP-6 + Ipamorelin). Similar pathways, diminishing returns, more side effects.
- Peptides with incompatible pH. Some require acidic reconstitution and will degrade in neutral solutions.
If you're tempted to combine peptides to save injections, just don't. Use separate vials and inject separately. The convenience isn't worth the risk.
Reconstitution Math for Blends
Reconstituting a blend works the same as a single peptide โ you're just working with the total mg in the vial rather than a single compound.
Formula
Concentration = Total mg in vial รท mL of BAC water added
Example: 70 mg GLOW vial + 2 mL BAC water = 35 mg/mL total concentration
The concentration tells you the total blend per mL. To find each individual peptide's concentration, multiply by its percentage:
- GHK-Cu: 35 mg/mL ร 60% = 21 mg/mL
- TB-500: 35 mg/mL ร 27% = 9.34 mg/mL
- BPC-157: 35 mg/mL ร 13% = 4.68 mg/mL
This is where a peptide blend calculator saves you from spreadsheet hell โ it handles the per-peptide breakdown automatically.
How to Calculate Per-Peptide Doses
Once you know each peptide's concentration, calculating your per-injection dose is straightforward:
Step-by-step
- Pick your target dose for the most sensitive peptide (e.g., BPC-157 at 250 mcg)
- Calculate draw volume: 250 mcg รท 4,680 mcg/mL = 0.053 mL
- Convert to syringe units: 0.053 mL ร 100 = ~5 units on a U-100 syringe
- Check what you're getting of the other peptides at that volume:
- GHK-Cu: 0.053 mL ร 21 mg/mL = 1,113 mcg โ
- TB-500: 0.053 mL ร 9.34 mg/mL = 495 mcg โ
- Verify all resulting doses fall within acceptable ranges
If any compound lands outside its effective range, you have two options: adjust your BAC water volume (changes concentration for all), or switch to separate vials for more control.
Skip the math โ use the Blend Calculator
- Enter your vial contents and BAC water volume
- Get per-peptide dose breakdowns instantly
- See exact syringe units for your target dose
Worked Examples: GLOW, KLOW, Wolverine
Example 1: GLOW 70 mg โ targeting 250 mcg BPC-157
| Parameter | Value |
|---|---|
| BAC water added | 2 mL |
| Total concentration | 35 mg/mL |
| Draw volume for 250 mcg BPC | 0.053 mL (~5 units) |
| GHK-Cu per injection | ~1,113 mcg |
| TB-500 per injection | ~495 mcg |
| Doses per vial | ~37 injections |
Example 2: KLOW 80 mg โ targeting 500 mcg BPC-157
| Parameter | Value |
|---|---|
| BAC water added | 2 mL |
| Total concentration | 40 mg/mL |
| Draw volume for 500 mcg BPC | 0.05 mL (5 units) |
| GHK-Cu per injection | ~750 mcg |
| KPV per injection | ~375 mcg |
| TB-500 per injection | ~375 mcg |
| Doses per vial | ~40 injections |
Example 3: Pre-mixed Wolverine (10 mg BPC + 10 mg TB-500)
| Parameter | Value |
|---|---|
| BAC water added | 2 mL |
| Total concentration | 10 mg/mL (5 mg/mL each) |
| Draw for 250 mcg BPC | 0.05 mL (5 units) |
| TB-500 per injection | 250 mcg (1:1 ratio) |
| Doses per vial | 40 injections |
Common Mistakes with Blend Dosing
โ Treating blend mg like single-peptide mg
A "70 mg vial" doesn't mean 70 mg of BPC-157. It's 70 mg total across all compounds. If you dose based on total mg, you'll wildly overshoot.
โ Adding too much or too little BAC water
More water = lower concentration = larger draw volumes (easier to measure accurately). Less water = higher concentration = tiny draws (harder to be precise with an insulin syringe). For most blends, 2 mL is the sweet spot.
โ Using a single-peptide calculator for blends
Standard reconstitution calculators don't account for ratios. Use a blend-specific calculator that breaks down per-peptide doses.
โ Not checking if individual doses make sense
Always verify each peptide's dose falls within published effective ranges. If the ratio forces one compound outside its range, separate vials may be better.
How to Track Blend Protocols
Tracking blends is more complex than single compounds because you need to log:
- Each peptide individually โ for accurate dose history per compound
- Reconstitution date โ blends have the same 28โ30 day refrigerated shelf life as single peptides
- Injection site rotation โ same importance as any SubQ protocol
- Side effects per compound โ if you get a reaction, you need to know which peptide might be responsible
Most spreadsheets break down quickly with multi-peptide tracking. Apps that support compound stacks let you log one injection and see the per-peptide breakdown automatically.
Track your blend protocol in Regimen
- Log multi-peptide stacks with per-compound doses
- Set reconstitution date reminders
- Rotate injection sites automatically
Frequently Asked Questions
Disclaimer
This content is for informational purposes only and does not constitute medical advice. Peptides are research chemicals and are not approved by the FDA for human use. Always consult with qualified healthcare providers before starting any new protocol. Individual results vary significantly.
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