A razor subscription is one of the few in this industry where the customer can work out exactly how much product they need. Shaves a week, shaves per cartridge, and the arithmetic is done. Almost nobody sets the cadence that way, which is why bathroom cabinets fill with unopened refills and subscribers cancel while telling you the blades were fine.
The money works the same way. The handle is usually given away or heavily discounted and recovered across refills, so a first order is not a sale, it is a loan. That makes months retained the only number worth optimising, and it makes a discount that buys a subscriber who leaves after two shipments actively expensive.
The category also has a compliance quirk. Blades sit close to policies written for weapons, so creative and feed work need more care here than in most grooming categories.
We work with shave subscriptions that already ship and want acquisition judged on refills delivered against the cost of the handle. The growth plan is free. The fee after it is flat and monthly.
The buyer is replacing a habit, not discovering a product. They already shave, they already know what irritates their skin, and they arrive with two questions: will this fit what I own, and how often will it turn up.
Compatibility is the first hurdle. Cartridge systems are proprietary, so a subscriber has to accept your handle to use your refills. Some shavers refuse on principle and go to double edge safety razors instead, where blades are a standard size and any blade fits any razor. Serving both is a real choice, and a site that quietly assumes cartridges loses the safety razor audience entirely.
Skin comes second. Men with coarse hair and men who get razor bumps are looking for blade count, pivot, and whether you sell a pre-shave and a balm alongside. This group has the highest tolerance for price and the lowest tolerance for a plan that only sells hardware.
Then there is the seasonality nobody plans for. Beards come and go, and November in particular takes a share of subscribers out of shaving for a month. Offering a pause in October keeps people who would otherwise cancel and never restart.
The cancel itself is almost always a cabinet with eight unopened cartridges in it. The plan sends more than the face uses.