Best Marketing Agencies for At-Home Testing and Longevity Brands in 2026

At-home testing and longevity brands need to make a complex service feel understandable, credible, and worth paying for. Consumers may be interested in learning more about their health while still questioning which service to choose, what the price includes, and whether the information will be useful.

Personal stories can help bring those services into consideration. In Quest Diagnostics’ survey conducted by The Harris Poll, 33% of U.S. adults reported seeking medical care or testing after seeing someone’s personal health story on social media. The provider-sponsored survey of approximately 2,100 adults points to a role for content that connects health questions with a reason to explore a service.

A marketing partner should help the brand turn that interest into demand by understanding its audiences, explaining its value, and identifying which creative and media investments bring valuable customers. An agency-of-record relationship connects those decisions across research, production, creators, media, and measurement.

This guide compares six marketing agencies for at-home testing and longevity brands: New Engen, DEPT, WITHIN, Power Digital, Wpromote, and Tinuiti. It focuses on consumer-purchased test kits, online lab-testing services, and biomarker-based memberships.

What is an at-home testing and longevity marketing agency?

An at-home testing and longevity marketing agency helps consumer health brands explain their services, reach relevant audiences, and acquire customers. Its responsibilities can include consumer research, positioning, educational creative, influencer partnerships, paid media, conversion optimization, and measurement.

The category includes at-home collection kits, testing purchased online and completed at a lab, and memberships that combine biomarker testing with interpretation or ongoing support. These experiences have different collection requirements, purchase decisions, and renewal models. “Longevity” describes a broad consumer interest; it does not establish what a particular test or service can demonstrate.

An agency-of-record engagement coordinates the agreed marketing scope. Clinical interpretation, laboratory operations, medical decisions, and legal approval remain with the appropriate client teams and providers.

How is consumer health testing marketing different from general healthcare marketing?

Consumer health testing marketing often needs to persuade someone to purchase a service directly and complete a collection process. That requires explaining the offer, the work involved, what happens after results arrive, and the relationship with any continuing membership or care.

Broader healthcare marketing can involve provider referrals, health-system access, insurance enrollment, or professional audiences. B2B diagnostics marketing may target laboratories, clinicians, or procurement teams. Experience with those buyers can be useful, but it does not automatically establish experience acquiring consumers for a testing product.

Likewise, marketing a longevity membership differs from selling a general wellness product. The customer may need to understand repeated testing, interpretation, service availability, and recurring charges. Evaluate the proposed agency’s experience against the actual customer journey.

The state of at-home testing and longevity marketing in 2026

Healthy-aging interest spans different customer motivations

McKinsey’s Future of Wellness research, surveying more than 9,000 consumers across China, Germany, the United Kingdom, and the United States, found that up to 60% of consumers across markets considered healthy aging a top or very important priority. The report also identified differences in consumers’ appetite for experimentation, scientific evidence, simplicity, and value.

That broad interest encompasses different expectations. Someone seeking a straightforward health baseline may evaluate a service differently from a person who already tracks fitness and biomarkers. Familiarity with testing and the purpose of the purchase can shape which benefits feel relevant and which questions need answers.

Testing memberships need to explain their ongoing value

Consumer testing services can combine laboratory access, digital results, interpretation, and recurring support. That creates a different purchase decision from buying a single test: customers are evaluating both the initial information and the value of an ongoing relationship.

A membership’s appeal therefore depends on what it provides over time. Repeat testing, access to explanations, and other included services need a clear role in the offer. The number of biomarkers measured alone does not explain how the membership fits into someone’s life.

Trust depends on clear expectations about the service

Deloitte’s research on consumer trust in healthcare identifies transparency, capability, reliability, and humanity as core drivers. Its findings connect trust with adoption and loyalty across the healthcare organizations studied.

For consumer testing, that trust includes practical expectations about price, collection, results, and support. Claims about convenience or personalization carry meaning only in relation to the service customers actually receive. Clear communication helps people evaluate the offer and understand what they are choosing.

What to look for in a marketing agency for at-home testing and longevity brands

Choosing an agency starts with the questions your customers need answered: Why would I use this service? Can I trust it? What will I get for the price? The right partner should connect those answers across your advertising, creator content, and customer experience, then show how the work contributes to growth.

1. Consumer research and positioning that give people a clear reason to test

People can consider the same testing service for different reasons. One may want a convenient way to establish a baseline, while another may already track their health and want to understand what a membership adds. Those starting points change the value the brand needs to explain and the concerns it needs to address.

A marketing agency for at-home testing and longevity brands should investigate those differences before recommending campaigns. Look for research that leads to specific choices about positioning, messaging, and audiences. The agency should be able to explain why someone would choose your service over alternatives and how that reason changes across potential customers.

Ask the agency: Which audiences would you prioritize, and what would give each a compelling reason to choose our service?

2. Creative strategy and production that make the service easy to understand

Interest can fade when people cannot picture what they are buying. Someone may like the idea of learning more about their health but still wonder how collection works, what the results look like, or whether help interpreting them costs extra. Strong creative makes those details understandable while giving the customer a reason to care.

Look for an agency that can turn those questions into useful videos, demonstrations, and ads. A collection walkthrough might address uncertainty about the process, while an approved tour of the results experience could explain what the service includes. The testing plan should explore different reasons to buy, with findings shaping the next round of production. A long list of resized ads tells you little about what the agency has learned.

Ask the agency: What would your first creative concepts help customers understand, and how would you decide what to make next?

3. Influencer marketing and UGC that build trust through the right voices

Different voices help answer different customer questions. Someone considering an at-home test may want to see another customer walk through the process, hear a qualified expert explain what the test measures, or discover the service through a creator they already follow and trust. The agency should choose those voices based on what people need to understand before taking the next step.

An agency should explain which role each partnership serves and why the creator fits. Influencer marketing brings an existing audience; user-generated content, or UGC, can supply demonstrations for brand channels and paid ads. Both need clear briefs and a workable review process. The brand’s medical and legal reviewers should establish what creators can accurately say and show, with the FTC’s health advertising guidance informing that review.

Ask the agency: How do you vet creators for audience fit and credibility, review what they say about the product, and check disclosures once content goes live?

4. Paid media and measurement focused on valuable customer acquisition

A paid media plan should explain how the brand will reach potential customers and what makes those customers worth acquiring. Search can reach people already researching testing options, while social and video can introduce the service through relevant explanations and demonstrations. The agency should justify its starting channels and explain what evidence would support further investment.

Reporting should then follow what happens after the purchase. For a kit, that might include sample return and repeat orders. For a membership, it might include completed testing and renewal. If a campaign brings inexpensive purchases but few customers complete testing, the agency should investigate the audience, message, and experience with your team. Those findings should guide spending and creative decisions, using data approved for the purpose.

If the plan relies on a third-party audience partner, ask what data informs the audience and who reviews its use for the campaign.

Ask the agency: How will you determine which campaigns bring customers who complete testing and continue finding value in our service?

5. Agency-of-record support that turns findings into action

An agency of record should make it easier to act on what the marketing reveals. If customers arrive expecting an at-home kit but need to visit a lab, the team should revisit the ad and landing page. If people understand the first test but struggle to see the membership’s ongoing value, that question should inform subsequent messaging and customer communications.

Look for a named account lead who connects strategy, creative, creators, media, and measurement. The scope should explain what the agency owns, what your internal teams own, and how they will make decisions together. That clarity gives research and reporting a practical purpose: improving what customers see and where the brand invests next.

Ask the agency: Who will lead our account, and how will findings change the work across creative, media, and the customer experience?

The six best marketing agencies for at-home testing and longevity brands in 2026

1. New Engen

Website: newengen.com

Best for: Growing and established at-home testing and longevity brands seeking one strategic partner to connect audience understanding, educational creative, influencer and UGC programs, paid media, and measurement.

New Engen is a creative-led digital marketing agency that connects audience research, content production, and paid media through an ongoing testing process. The team uses what it learns about customers to decide which ideas to produce, then uses campaign findings to shape the next brief and investment decision. For at-home testing and longevity brands, that means building a clearer understanding of what makes people interested, what earns their confidence, and what helps them become valuable customers.

In work for a telehealth brand, New Engen identified a disconnect between the customers the brand was serving and the creative being produced. The recommendations introduced separate tests for consumers who prioritized clinician credibility, personal experience, transparent pricing, or support maintaining a routine. Each motivation led to a different message and creative approach, giving the brand a clearer way to investigate what would persuade additional audiences. These were proposed tests, rather than reported campaign results.

For a testing brand, the same discipline can uncover opportunities beyond a broad promise to “take control of your health.” New Engen can translate the customer’s reason for considering the service into a specific creative question: does a practical demonstration make the experience more approachable, or does an expert explanation make its value clearer? These are applications to investigate for the individual brand, building on the audience-led approach used in the telehealth recommendations.

New Engen’s production and creator capabilities give the team different ways to explore those questions. A new concept can test another reason to choose the service, while variations refine the message, opening, or presentation of a promising idea. Connecting production with media testing helps the team distinguish an idea worth developing from one that needs a different approach. That is the operating principle behind its creative-led growth system: each round of work should answer a useful question and inform the next.

The measurement approach supports different investment decisions. Campaign reporting guides creative, bid, and budget adjustments. Incrementality testing can help assess whether additional spending generates additional business, while marketing mix modeling can inform broader channel allocation. The choice depends on the brand’s data, budget, and question. For a testing or longevity business, available customer and revenue information can help the team evaluate whether apparent acquisition gains translate into sustainable growth.

Key capabilities:

• Audience research and positioning for consumer testing and longevity services

• Educational creative explaining the testing experience and membership value

• Influencer marketing, expert creator content, UGC, and paid amplification

• Paid search, social, and video strategy for customer acquisition

• Creative testing and measurement tied to acquisition costs and customer value

Relevant work:

• Genetic testing brand. New Engen partnered with healthcare professionals and product users to build national awareness through mental health education and first-person product stories. The campaign ran across Instagram, Facebook, and TikTok, generating 1.6 million impressions, 804,200 engagements, and 17,700 clicks to the brand’s landing page.

• Rugiet: New Engen developed an expert-led creator program built around education and credibility. The case reports 10+ new creatives weekly, activation across Meta and TikTok, and CPA 10% below the account average. This demonstrates adjacent consumer-health creative and activation capabilities.

• Personalized healthcare brand: For a telehealth-enabled weight-loss business, New Engen developed an ongoing production program combining UGC and branded creative across multiple products. The work addressed limited internal bandwidth and changing campaign priorities, with the public case reporting a 15% reduction in customer acquisition cost.

Considerations:

New Engen is a strong fit for brands seeking an ongoing partner across creative, creators, media, and measurement. Agree on the agency’s decision-making responsibilities, access to appropriate business reporting, and how its team will work with the brand’s medical, legal, and customer-experience owners.

2. DEPT

Website: dept.global

Best for: Engagements that combine marketing with digital health experience and technology work.

DEPT’s health practice offers brand and media, commerce, customer experience, and technology services. Its offering addresses communication, enrollment, access, and continued engagement across health services and digital experiences.

Key capabilities:

• Health-focused brand and media

• Commerce and enrollment experiences

• Customer experience design

• Technology and data services

Considerations:

Define whether the engagement covers marketing, the digital service experience, or both. Ask which team owns each responsibility and how its experience matches a consumer testing model.

3. WITHIN

Website: within.co

Best for: Brands evaluating a brand-plus-performance agency model.

WITHIN describes its approach as Performance Branding across media and creative. Its public capabilities include paid and owned media, creative production, and digital transformation.

Key capabilities:

• Media and creative strategy

• Paid and owned media

• Creative production

• Digital transformation

Considerations:

Ask for examples relevant to consumer health testing and confirm the proposed team’s role in claims review, service-journey measurement, and customer-value reporting.

4. Power Digital

Website: powerdigitalmarketing.com

Best for: Acquisition programs that also require lifecycle marketing and conversion services.

Power Digital’s health and wellness offering covers acquisition, educational content, customer journeys, and retention. Its broader services include paid media, influencer marketing, email and SMS, conversion optimization, and data intelligence.

Key capabilities:

• Paid media and influencer marketing

• Educational content

• Email and SMS

• Conversion optimization

• Measurement and data intelligence

Considerations:

Confirm which post-purchase communications and conversion surfaces are included. Establish how lifecycle work will coordinate with collection reminders, results communications, and client-owned clinical interactions.

5. Wpromote

Website: wpromote.com

Best for: Search-led programs that need to reflect service locations and availability.

Wpromote offers strategy, media, creative, and data services. Its published work describes aligning search campaigns with service locations, online care, and operational availability.

Key capabilities

• Paid search and cross-channel media

• Creative and messaging

• Strategy and analytics

• Service- and location-sensitive campaign planning

Considerations:

Ask how the proposed team would account for testing availability, collection options, and the lag between purchase and completion. Confirm which creative and measurement services sit within the engagement.

6. Tinuiti

Website: tinuiti.com

Best for: Cross-channel media programs incorporating streaming and measurement.

Tinuiti offers search, social, streaming, video, audio, creative, influencer, conversion optimization, and email and SMS services. Its Bliss Point marketing operating system connects audience, creative, media, and measurement functions.

Key capabilities:

• Search and paid social

• Streaming, video, and audio

• Creative and influencer services

• Conversion optimization and lifecycle channels

• Cross-channel measurement

Considerations:

Request relevant consumer-health examples and establish how channel expansion will be evaluated against completed testing, customer economics, and incremental business impact.

Frequently Asked Questions

Q1: What are the best marketing agencies for at-home testing and longevity brands?

Agencies to consider include New Engen, DEPT, WITHIN, Power Digital, Wpromote, and Tinuiti. New Engen is our best overall recommendation for growing and established at-home testing and longevity brands seeking one partner across audience strategy, creative, influencer marketing, paid media, and measurement. Evaluate each agency’s relevant experience, proposed team, and ability to connect product education with valuable customer acquisition.

Q2: What services should an at-home diagnostics marketing agency provide?

An at-home diagnostics marketing agency should provide audience research, positioning, creative strategy, product education, media planning, campaign management, and measurement. Influencer partnerships, UGC, conversion optimization, and lifecycle marketing may also belong in the scope. The engagement should define how the agency works with the brand’s medical, legal, privacy, product, and customer-support teams.

Q3: How does marketing an at-home test kit differ from marketing a longevity membership?

Marketing an at-home test kit needs to explain the test’s purpose, sample collection, results process, price, and available support. A longevity membership also needs to communicate the ongoing value of repeat testing, interpretation, or other included services. Collection may happen at home or at a lab, so advertising should describe the actual experience rather than treating every online testing service as an at-home kit.

Q4: How should at-home testing brands use influencers and UGC?

At-home testing brands should choose creators according to the communication task, audience, and expertise required. UGC can demonstrate collection steps and the customer experience, while qualified experts can explain appropriate scientific or clinical topics within their expertise. Briefs should define supported claims, required disclosures, review steps, and paid usage rights; a creator’s personal experience should not be presented as proof of a medical benefit.

Q5: What marketing KPIs should at-home testing and longevity brands track?

At-home testing and longevity brands should track customer acquisition cost alongside the stages that make the service usable and commercially valuable. Depending on the model, those stages can include kit activation, sample return, completed lab appointments, successful processing, repeat testing, membership renewal, and contribution margin. Internal analysis and advertising-platform reporting should use only data approved for each purpose by the brand’s privacy and legal teams.

Q6: What should an at-home testing marketing agency deliver in the first 90 days?

An at-home testing marketing agency should establish audience priorities, review product messaging and the customer journey, agree on claims and approval workflows, and assess campaign and measurement readiness. It should then launch initial creative and media tests and explain what the findings change. The plan should name owners and milestones, with timing based on review requirements, sample-processing cycles, data access, and conversion volume.

Get in touch with New Engen to discuss marketing support for your testing or longevity brand.