How many units of PTD-DBM should I draw?

It depends on your vial size, BAC water, and dose. For a 5mg vial with 0mL BAC water, a beginner dose of 500mcg is typically 0 units on a U-100 syringe. Use the calculator above for your exact numbers.

How much BAC water should I add to PTD-DBM?

The standard amount is 0mL of bacteriostatic water for a 5mg vial. More water gives a more dilute solution — easier to measure small doses. Less water means fewer injections per vial. Adjust the BAC water slider in the calculator to see how it changes your syringe units.

How long does a PTD-DBM vial last?

At a beginner dose of 500mcg weekly, a 5mg vial lasts about 10 doses. The calculator shows exact doses per vial for your selected tier.

What syringe should I use for PTD-DBM?

Most people use a U-100 insulin syringe (1mL / 100 units). For very small doses, a U-50 or U-30 syringe gives better precision. The calculator adjusts units automatically for whichever syringe you pick.

PTD-DBM Dosage Calculator

Anti-AgingTopicalResearch~2-4 hours half-life

Activates Wnt/β-catenin pathway to promote hair follicle regenerationStimulates wound-induced hair neogenesis (WIHN)Counteracts DHT-induced hair loss mediated by PGD2 and CXXC5Non-invasive topical application — no injections required12 weeks on / 4 weeks off

Vial Size

BAC Water (mL)

Dosing Level

500mcg · Weekly

Custom Dose (mcg) — optional

Syringe Type

0.0 units

100 units (1mL)

Concentration

mcg/mL

Draw Volume

< 0.001

Syringe Units

< 0.1

units

Doses / Vial

doses

Summary: Add 0mL BAC water to your 5mg vial. Draw to < 0.1 units on a U-100 syringe for a 500mcg dose. This vial will last 0 doses.

Cycle Planner

Cycle Length (weeks)

Price Per Vial ($) — optional

Topical (scalp spray or serum). Typical beginner frequency: weekly.

PTD-DBM Pharmacokinetics

Pharmacokinetics — Active Dose Over Time

t½ = ~2-4 hours (estimated, topical peptide)

After 1 half-life (3h): 50% remainsAfter 2 half-lives (6h): 25% remainsAfter 3 half-lives (9h): 12.5% remains

At a 1mg dose: 50% = 500mcg remaining after 3h. Recommended frequency: Weekly.

Disclaimer: This curve is a simplified first-order exponential decay model. Actual pharmacokinetics vary based on injection site, individual metabolism, body composition, and other factors. Half-life values are approximate and based on available preclinical and clinical literature. Many research peptides lack formal human pharmacokinetic studies. This is for educational purposes only — not medical advice.

PTD-DBM Dosing Protocol

Level	Dose / Injection	Frequency
Beginner	500mcg	Weekly
Moderate	1mg	Weekly
Aggressive	1mg	2x/week

Note: Topical peptide targeting CXXC5-Dvl interaction. Applied as scalp spray or serum. Often combined with valproic acid and microneedling for synergistic effect. No injection required — topical application only.

About PTD-DBM

PTD-DBM (Protein Transduction Domain-fused Dishevelled Binding Motif) is a synthetic peptide developed at Yonsei University that activates the Wnt/β-catenin signaling pathway by competitively disrupting the binding between CXXC5 and Dishevelled (Dvl). CXXC5 is a zinc finger protein overexpressed in balding scalps that acts as a negative regulator of hair follicle regeneration. By blocking this interaction, PTD-DBM restores Wnt signaling, promoting hair regrowth and wound-induced hair follicle neogenesis. In animal studies, topical PTD-DBM combined with valproic acid produced significant new follicle formation within 28 days.

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