Two guides on what a med spa actually earns, and what it costs to keep the doors open.
Med spa economics on their own terms: memberships, injectables, and the unit maths that decides whether the month works.
The two guides
Most med spa business plan templates nail the structure and hand-wave the money. Here's the numbers section that decides whether you survive: per-treatment margin, a real break-even formula, and the prepaid-membership trap — with honest AmSpa data.
A membership and a prepaid package look like the same sale, but they are two different revenue models — one recognized evenly whether she shows up or not, one drawn down with breakage you can't book when it expires. The math, sourced to the standard itself.