It’s a message the company plans to magnify via a national advertising campaign encompassing radio, television, print and social media. A half-dozen years ago, around the time freezing technology had advanced to the point that the American Society for Reproductive Medicine (A.S.R.M.) no longer deemed the procedure experimental, clinics like Prelude, Pacific NW Fertility in Seattle, Shady Grove in Washington and Ova in Chicago began reminding their youngest target customers that fertility is finite and begins to wane as early as one’s 20s. Those clinics once catered almost exclusively to women at the older end of their childbearing years.

Their messaging, generally friendly and fact based but in some cases alarmist in tone, varies from Ova’s invitations to “freeze for your future,” to Extend’s more urgent “eggs are a nonrenewable resource.” The exhortations are underscored by cheery images variously showing gaggles of young women gathered over drinks or ambling arm in arm down a city street.

To provide intelligence to consumers, and presumably whip up business, some clinics are hosts to “lets chill” egg-freezing parties, inviting guests to take in facts and figures along with Champagne and canapés.

Others glamorize the procedure in Instagram posts that feature women like Kaitlyn Bristowe, a lead on “The Bachelorette,” who have tweeted independently about their own freezing experiences. Kindbody, a clinic in New York, takes an even more aggressive approach, inviting potential clients to hop aboard a pop-up van to have their hormone levels tested.

Clinics have further eased barriers with significant price drops. Once as high as $19,000 for the cost of a single cycle, fees today can vary from about $4,000 to $7,000 for a procedure that entails one to two weeks of birth control pills to turn off natural hormones, nine or 10 days of hormone injections to stimulate egg production, followed, once the eggs have matured, by retrieval and freezing. (Initial consultation and storage are not generally included.)