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Calculator · Botox and injectables

Med spa membership calculator: a year with it, and without

A membership lowers the price per unit and adds a fee. This sets the two years side by side and finds the units a year at which they cost the same. It is arithmetic on the numbers you give it: it does not say whether to join, or how many units anyone uses.

The calculator

A membership as Rénove Medical Spa (Kingwood, TX) prints it. The fee is banked as credit toward treatment. An example of the sum, not a suggestion. Every printed example

The fee is charged

Pre-filled: $125 — Rénove Medical Spa’s published price (opens in a new tab), seen Oct 11, 2026. Type over it to use your own.

Pre-filled: $10 — Rénove Medical Spa’s published price (opens in a new tab), seen Oct 11, 2026. Type over it to use your own.

Pre-filled: $11 — Rénove Medical Spa’s published price (opens in a new tab), seen Oct 11, 2026. Type over it to use your own.

Pre-filled: 20 units, the dose Botox Cosmetic’s label gives for frown lines — FDA-approved label for Botox Cosmetic (DailyMed) (opens in a new tab), label revised 10/2024; checked October 11, 2026. Type over it with your own number. It is the label’s dose, not a statement of what anyone uses.

Worked out in your browser. Nothing you choose or type here is sent or saved.

A year costs the same either way at

137 units a year

$1,500 ÷ $11 = 137 units a year, rounded up. Below that the year without the membership costs less; above it, the year with it does.

A year of fees: 12 × $125 = $1,500. The fee is taken as credited toward treatment.

A year each way, at 20 units a visit
Visits a yearWithout the membershipWith it
120 units$22020 × $11 = $220$1,500the greater of $1,500 and 20 × $10 = $200: $1,500$1,300 of credit not spent$1,280 more
240 units$44040 × $11 = $440$1,500the greater of $1,500 and 40 × $10 = $400: $1,500$1,100 of credit not spent$1,060 more
360 units$66060 × $11 = $660$1,500the greater of $1,500 and 60 × $10 = $600: $1,500$900 of credit not spent$840 more
480 units$88080 × $11 = $880$1,500the greater of $1,500 and 80 × $10 = $800: $1,500$700 of credit not spent$620 more

One to four visits are listed and none is chosen. The table stops at four: The label says dosing more often than every 3 months has not been clinically evaluated, and states a duration of effect for frown lines of approximately 3 to 4 months. (FDA-approved label for Botox Cosmetic (DailyMed) (opens in a new tab), label revised 10/2024; checked October 11, 2026.)

Where these numbers come from

A sign-up fee, a minimum term, a charge for leaving early and anything else a membership includes are not in this sum. This is arithmetic on published prices: an estimate, not a quote, and not advice about any treatment or dose. Prices change; each seller’s own page is the authority.

The prices behind it

Not medical advice. This page is about what things cost. Prices change: the newest here was seen on its source page on October 11, 2026.

What that means, and how we check prices

Not medical advice

This page is about what things cost. It does not say what anyone should take or have done; that is a decision for you and a licensed clinician. Statements from labels and agencies are quoted from the sources linked beside them and have not been clinically reviewed.

Prices change

Every price here is a published price as it was seen on its source page — the newest on October 11, 2026. Sellers change prices and end offers; the seller’s page is the authority.

How we check prices

Each price is read from the seller’s own page and checked against its source before it appears, with the unit it is quoted in and the conditions printed beside it. Published prices are re-checked monthly. How we estimate · How this site works