DosePeptide – Dual-mode peptide reconstitution calculator

A two-step calculator for peptide users that first answers how much water to add, then converts to U-100 syringe ticks

Problem

A developer who built a peptide calculator notes that although plenty of similar tools exist, reading real user feedback reveals the real blocker: many people are stuck on "how much water do I add for reconstitution," not on the tick conversion. Most existing tools are a single form that forces users to figure out which field to fill, a dead end for anyone who has not reconstituted yet.

Solution

A dual-mode calculator: reconstitution mode takes vial content and desired dose, then outputs suggested water volume, resulting concentration, draw volume and U-100 tick mark; ready-to-use mode takes known water volume or concentration and outputs draw volume and tick mark directly. Ship it as a static, no-login, mobile-friendly single page with a quick-reference chart for common vial weights and doses.

Users

People who self-reconstitute and self-inject peptides, plus small clinics and fitness communities

MVP

Dual-mode calculator: reconstitution mode takes total content and target dose and outputs water volume and ticks, ready mode takes water volume and target dose and outputs draw volume; quick-reference chart for common vial weights, water volumes and doses; mobile-first large buttons and shareable result image; no login, statically hosted.

Revenue

Free base calculator; paid one-time unlock ($4.99–9.99) for multiple vial storage, history, unit conversion and ad removal; affiliate links to syringe and supply vendors.

Why now

Peptide use is spreading from clinical settings to everyday consumers while mainstream tools solve only half the problem; this is a clear search demand with weak incumbents that one person can ship as a single page.