/Companies

Citruslabs

Techstars '16

Santa Monica, US · Founded 2015 · 19 employees on LinkedIn · 5 known investors

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Citruslabs is a clinical research organization that designs and runs consumer perception studies, clinical trials, and randomized controlled trials for health and wellness brands including supplements, skincare, pet health, biotech, and functional foods. The company translates study results into marketing-ready, regulator-reviewed product claims for consumer health brands that traditionally lack access to affordable clinical evidence.

Also known as Citrus Labs

Founders & leadership

Citruslabs was founded in 2015 by Susanne Mitschke, Patrick Renner, and Roger Arellano.

SMSusanne Mitschke
Susanne MitschkeCEO & Co-FounderSusanne Mitschke holds an MPH from Harvard T.H. Chan School of Public Health with specialization in clinical trial design and biostatistics, and previously founded MindMate, an Alzheimer's disease app. She is a Certified Principal Investigator who founded Citruslabs in 2015, a contract research organization that conducts clinical studies and trials for consumer health brands.
PRPatrick Renner
Patrick RennerCOO & Co-FounderPatrick Renner holds a Bachelor's degree in Economics and Business from Vienna University of Business and Economics, and has completed graduate coursework in finance, health law, and clinical service operations at universities including the University of Glasgow, NYU Law, and Harvard Medical School. He co-founded Citruslabs, a contract research organization providing clinical trials and studies for health and wellness brands, and previously developed MindMate, a memory health application.
RA
Roger ArellanoCTO & Co-Founder

Investors · 5

Company profile

researched Sep 2026

Citruslabs is a contract research organization (CRO) serving consumer health brands. It designs and runs IRB-approved clinical trials, consumer perception studies, single-arm clinical studies, and randomized controlled trials across supplements, skincare and cosmetics, food and beverage, functional food and beverage, pet health, women's health, longevity, biotech and pharma, medical food, and consumer medical devices. The company handles the full study lifecycle — protocol design, IRB submission and approval, participant recruitment, data collection and compliance monitoring, statistical analysis, and the final report — and converts findings into product claims reviewed against FTC and FDA best practices for use on packaging, product detail pages, advertising, and retail pitch materials. Products completing a study can carry the Citruslabs Tested Seal, a mark the company positions for packaging, Amazon listings, retail shelf talkers, advertising, and investor decks.

Study capabilities include blood-based biomarkers (the company cites 50+ biomarkers, including inflammatory, hormonal, lipid and metabolic markers), microbiome and stool sampling, salivary cortisol, epigenetic age testing (Horvath, GrimAge, PhenoAge), continuous glucose monitoring, wearable data integration (Oura, Whoop, Fitbit, Apple Watch), validated cognitive and psychometric instruments, standardized photography and expert grading for dermatology endpoints, and both in-clinic and at-home mobile phlebotomy. Study designs offered include perception studies, single-group trials, RCTs, and crossover designs. Sponsor brands retain full ownership of the dataset, statistical analyses, report, and derived IP; the company states it does not retain or resell study data.

The company's own materials give inconsistent founding and location details: the homepage cites 10+ years of operation, while the About page states Citruslabs was "founded in 2018 by Susanne Mitschke and Patrick Renner" yet also lists 2015 as the year founded, describes a 2015 launch in Las Vegas by Mitschke, Renner and Roger Arellano, and gives New York as the headquarters. An investor-data profile lists the headquarters as Santa Monica, California (1639 11th Street) with 17 employees and a founding year of 2015.

Founding story

Before Citruslabs, the founding team built MindMate, an Alzheimer's and dementia app used by millions of patients and caregivers. Building that product exposed what the founders describe as a large gap between clinical research and consumer health: pharma companies had researchers, regulatory teams and multi-year budgets, while supplement, skincare and functional food brands made claims based on borrowed ingredient data, competitor studies, or nothing. The company's stated aim was to close the gap between expensive pharma-style trials consumer brands could not afford and ingredient research they did not run, by delivering clinical evidence on a brand's actual formulation at brand-appropriate prices and timelines.

Business model

Citruslabs sells fee-based clinical research services to consumer health brands, with published pricing tiers: consumer perception studies from about $15,000, single-arm clinical studies from about $40,000, and randomized controlled trials from about $80,000. Studies start in the low five figures, pricing is public with a price-match guarantee, and the company states there are no hidden fees or change orders. It positions study cost at 70–85% below traditional CROs. An optional Citruslabs Tested Seal is awarded to products whose data supports the claims.

Project-based fees per study, priced by study design (perception study, single-arm clinical study, randomized controlled trial, crossover study), with custom proposals returned within two business days.

Traction

Company-reported figures include 600+ completed clinical studies (300+ in supplements), a database of 250,000+ vetted participants, six industry verticals, work for brands in 20+ countries, 98% participant retention (against a cited ~72% industry average), and an average eight-week timeline from kickoff to marketing-ready claims for supplement studies. The first round of the Citruslabs Grant Program drew more applications than expected, leading the company to expand from a single planned grant to support for up to nine brands.

Latest developments

In 2025 Citruslabs launched the Citruslabs Tested Seal and introduced the Citruslabs Grant Program to subsidize research costs for health and wellness brands in underfunded areas such as women's health, mental health, sleep and longevity. Co-founder Susanne Mitschke discussed the program on the NutraIngredients-USA NutraCast podcast in May 2025, saying the spring round drew far more applications than expected and that the original plan of one grant covering 65% of research cost was replaced by three tiers (30%, 25% and 15%) supporting up to nine brands.

▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies

Market position

Citruslabs positions itself as a CRO purpose-built for consumer health brands rather than a pharma CRO with a consumer division, competing on speed (most studies launching within two weeks and delivering in 8–16 weeks versus a cited 9–18 or 12–24 month traditional CRO timeline) and price (70–85% below traditional CROs). It cites 600+ completed studies, including 300+ supplement studies, and work for brands across 20+ countries.

Stated differentiators are decentralized trial infrastructure and a 250,000+ participant database that shortens recruitment and removes site coordination; pricing designed for DTC brand budgets; a technology-first delivery stack with real-time dashboards, ePRO, digital consent and wearable integrations; full sponsor ownership of data, analyses and derived IP; in-house IRB handling described as several weeks faster than traditional CROs; and delivery of a marketing claims appendix reviewed for FTC and FDA best practices alongside the scientific report.

Technology

Citruslabs operates decentralized, technology-first trial infrastructure built in-house: a participant database of 250,000+ vetted testers, an ePRO system with automated data collection, digital consent, real-time study monitoring dashboards, wearable and CGM integrations, and Slack-based client communication. CTO and co-founder Roger Arellano architects the platform. The decentralized model lets participants join from home and, per the company, removes recruitment and site-coordination bottlenecks.

Go-to-market

The company markets directly to brands through category-specific landing pages (supplements, longevity, skincare, pet health and others), public pricing with a price-match guarantee, customer testimonials, and the Citruslabs Tested Seal used by clients on packaging and retail and e-commerce listings. It also runs the Citruslabs Grant Program, which subsidizes a portion of research costs for selected brands, and participates in industry media such as the NutraIngredients-USA NutraCast podcast. The About page lists Forbes, TechCrunch, Inc., Business Insider and Nasdaq as press placements.

Health and wellness consumer brands that lack access to traditional pharma-style clinical research, spanning supplements, skincare and cosmetics, food and beverage, functional food and beverage, pet health, women's health, longevity, biotech and pharma, medical food and consumer medical devices. Clients range from bootstrapped direct-to-consumer founders to publicly traded CPG companies.

Geography

Company materials list New York as headquarters while an investor-data profile lists the headquarters at 1639 11th Street, Santa Monica, California, with the 2015 launch described as taking place in Las Vegas. Studies have been run for brands across 20+ countries, and the decentralized model allows remote participation from home.

History

Company materials place the launch in 2015 in Las Vegas by Susanne Mitschke, Patrick Renner and Roger Arellano, alongside MindMate (the About page elsewhere states the company was founded in 2018 by Mitschke and Renner). In 2020 the team was named to Forbes 30 Under 30 for a second time and the company moved to fully decentralized clinical trials for consumer brands. In 2022 it expanded beyond CPG into biotech, medical devices and longevity brands with more complex study designs and biomarker endpoints. In 2025 it launched the Citruslabs Tested Seal and introduced the Citruslabs Grant Program.

Risks & controversies

Public company materials contain inconsistent foundational details: the About page simultaneously states a 2018 founding by two co-founders and a 2015 founding in Las Vegas by three co-founders, and names New York as headquarters while an investor-data profile lists Santa Monica, California. Traction figures such as study counts, participant database size, retention rates and cost savings versus traditional CROs are self-reported and not independently verified in the available material.

Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Average timeline from kickoff to marketing-ready claims (supplements)Jan 20268 weeks
Clinical studies completedJan 2026600 studies
Cost savings versus traditional CROsJan 202670-85% less
Countries with client brandsJan 202620+
EmployeesJun 202617 employees
HeadcountAug 202619
Industry verticals servedJan 20266 verticals
Participant retention rateJan 202698%
Starting price, consumer perception studyJan 2026$15K
Starting price, randomized controlled trialJan 2026$80K
Starting price, single-arm clinical studyJan 2026$40K
Supplement studies completedJan 2026300 studies
Vetted participants in databaseJan 2026250,000 participants

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Related companies · 1

Companies working in the same space as Citruslabs.

Timeline · 5

launches, deals, and filings
Jan 2025
Citruslabs Grant Program launched

Citruslabs introduced a grant program providing financial support and research services to health and wellness brands in underfunded areas such as longevity and women's health. After the spring round drew more applications than expected, the company expanded from one planned grant covering 65% of research cost to three tiers (30%, 25% and 15%) supporting up to nine brands.

source ↗

Jan 2025
Launch of the Citruslabs Tested Seal

Citruslabs launched the Citruslabs Tested Seal, a mark awarded to products that complete a clinical study with the company, used on packaging, e-commerce listings, advertising and investor materials.

source ↗

Jan 2022
Expansion into biotech and medical devices

The platform expanded beyond CPG to serve biotech startups, medical device companies and longevity brands with more complex study designs and biomarker endpoints.

source ↗

Jan 2020
Founding team named to Forbes 30 Under 30 a second time

The founding team was named to the Forbes 30 Under 30 list for the second time.

source ↗

Jan 2020
Moves to fully decentralized clinical trials for consumer brands

Citruslabs began running fully decentralized clinical trials, allowing participants to join studies from home.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

▸Research sources · 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Citruslabs do?
Contract research organization running clinical trials and consumer perception studies for consumer health and wellness brands.
Who founded Citruslabs?
Citruslabs was founded by Susanne Mitschke, Patrick Renner, Roger Arellano in 2015.
Who are Citruslabs's investors?
Citruslabs's investors include 2048 Ventures, Mucker Capital, One Way Ventures, PLG Ventures, Techstars.
Where is Citruslabs headquartered?
Citruslabs is headquartered in Santa Monica, US.