Plainspeak sends free samples to attract customers

Plainspeak, a new women’s supplement brand, is betting on mail-in samples to grow its customer base. Launched earlier this month, the company aims to bypass the crowded digital advertising market by sending physical products directly to consumers’ mailboxes. The brand’s debut product is Strength Water, an all-in-one supplement containing 15 grams of grass-fed protein and five grams of creatine. It also includes collagen, calcium, and vitamin D in a lemonade-flavored mix. The product promises to deliver all the macros in a lemonade-like format. The company deliberately started with an all-in-one hero product to solve the supplement fatigue that many women have come to face.

Co-founder Sara Brooks, a former CPG strategy consultant, knew that launching a wellness brand in a noisy climate would require a different approach than standard paid advertising. She co-founded the brand with Rachel Moore. Instead of buying ads, the team encourages potential customers to direct-message their address on Instagram. The brand places the prompt in its social media bios and calls it out throughout posts and videos. In return, the user receives a free single-serve sachet. This strategy of leveraging basic USPS services and social media has quickly become one of the cornerstones of Plainspeak’s launch phase.

Bypassing the Pay-to-Play Model

“We thought, ‘If we can mail a sample sachet directly to people’s mailboxes, we can build an acquisition channel with a different approach than the typical CPG paid media model,’” Brooks said. The method relies on organic word-of-mouth rather than paid influencers. Brooks noted that social platforms are currently saturated with advertisements for GLP-1 medications and red-light therapy, making it difficult for new brands to stand out through paid channels. The founders wanted to avoid getting sucked into the paid ads cycle early on.

This approach mirrors a pre-internet tactic known as “sampling,” which was used extensively by legacy consumer packaged goods companies before digital tracking took over. While modern brands often obsess over data metrics and attributed clicks, Plainspeak is effectively reversing that trend to prioritize physical product experience over digital impressions. In a direct-to-consumer setting that has become overly reliant on a digital marketing playbook, the company is looking for other nostalgic approaches to strip back customer acquisition.

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Strength Water was developed based on existing clinical studies with help from endocrinologist Dr. Gillian Goddard. The name aims to simplify health claims. “Our idea was: If the product is as good as we believe it is, women will tell other women it works,” Brooks said. The founders are putting their entire marketing budget into sampling rather than spending on Meta ads or influencer marketing.

The Math Behind the Mailers

The founders initially tested the concept with 500 contacts in the wellness industry, who were personal friends and colleagues of the founders. They wanted to see if they could acquire a customer for roughly $1, the cost of mailing a sachet, compared to the rising customer acquisition costs on paid platforms. The team places samples in branded envelopes and mails them via standard USPS. While many of the samples arrived in three to four days, some have been untrackable. When mailing hundreds of envelopes at once, USPS requires an upgrade to ground shipping, costing $9 per shipment. As such, the company stuck with using traditional postage and dropping the mailers in public collection boxes. Based on social media posts and customer feedback, Brooks estimates that about 80% of the initial batch arrived. The company is making modifications to address tracking issues in the future.

As part of going analog, the company is also starting a Facebook group, which the founders acknowledge feels antiquated. This group acts as a crowdsourcing community where women can ask niche questions about health and wellness. Users can join through friend invites, with the admins approving each request. Currently, the company is sending more than 100 samples a day to people who reach out with interest. Brooks noted that demand has been incredibly encouraging, and while conversion measurement is in the early stages, it has been high and exceeded expectations.

The one-by-one sampling strategy remains scalable and has allowed the team to go back to every person to discuss the product as they build the brand in public. The exercise has the founders pondering whether it is possible to build a $100 million brand without relying on traditional marketing levers. While the long-term viability of this strategy remains to be seen, early indicators suggest that when people try the product and love it, they convert to subscriptions for the full-size pack. The brand has already gone through over a third of its sample inventory, which is ahead of schedule. Qualitative signals reinforce the core thesis that getting the product into women’s hands is the most effective form of marketing, with users returning to say they loved the product and referring friends.