eNano Health Limited

What eNano Health Limited does

eNano Health Limited is a Hong Kong-based health technology company founded in 2010 and headquartered at the Hong Kong Science and Technology Park. The company develops saliva-based diagnostic solutions for at-home health monitoring and disease screening, built on a patented P4 (Predictive, Preventive, Personalized, Participatory) Test Platform that detects multiple biomarkers from a single saliva sample. Its portfolio spans the Kiss & Tell saliva-based glucose monitor (described as the first saliva-based glucose test on the market), the Health 360 comprehensive multi-system health risk assessment launched in 2025, and an extensive line of individual P4 specialty tests covering cortisol, amino acids, folic acid, cotinine, neopterin, TMAO, progesterone, insulin, and skin health. The product ecosystem is anchored by a cloud-connected mobile application that enables result upload, longitudinal trend tracking, and family sharing.

The company operates a direct-to-consumer and small-business go-to-market model through a multi-channel distribution network spanning Amazon (global), Watsons pharmacy retail stores across Hong Kong, niche online platforms (Happy Retired, health.ESDlife), and a regional distributor (Ascent International Limited). Revenue is generated through transactional unit sales of test kits and consumable strips at price points ranging from HK$25 (basic skin test) to HK$500 (Health 360), with tiered packaging (e.g., 7-test and 50-test Kiss & Tell bundles) creating a recurring consumable revenue component. Customers are individual health-conscious consumers, Type II and gestational diabetes patients, stress-management users, and smoking-cessation trackers — no enterprise or institutional accounts are disclosed.

The company is privately held, founder-led, and bootstrapped. Patrick Leung serves as Founder and Winnie Lun as CEO, supported by a small multidisciplinary team of 11–50 employees spanning physics, molecular biology, informatics, chemistry, and engineering. No external funding rounds, institutional investors, subsidiaries, or M&A activity are disclosed in the source data, indicating capital-efficient organic growth focused on the Hong Kong consumer health market with selective international reach via Amazon.

Name

eNano Health Limited

Legal name

eNano Health Limited

Website

https://enanohealth.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

1–10 employees

Short description

eNano Health Limited, a Hong Kong health technology company founded in 2010, develops patented saliva-based diagnostic kits for at-home health monitoring, including the Kiss & Tell glucose monitor and Health 360 multi-system assessment, sold direct-to-consumer through Amazon, Watsons, and online platforms serving health-conscious individuals and diabetes patients.

Ownership category

akta.pro rank

Product category

Home Diagnostic Devices

NAICS

In-Vitro Diagnostic Substance Manufacturing (325413)

SIC

In Vitro & In Vivo Diagnostic Substances (2835), Surgical & Medical Instruments & Apparatus (3841)

akta.pro primary industry

Remote Diagnostics & Point-of-Care (Connected Testing, Home Lab Devices) (HLACAPAK)

akta.pro secondary industries

Remote Diagnostics & Home Testing Devices (Connected POC/At-Home Diagnostic Readers) (HLAHACAL), SaMD – Digital Biomarkers & Algorithmic Endpoints (HLACANAF), SaMD – Monitoring, Triage & Risk Stratification Software (HLACANAE)

Keywords

• Saliva-based diagnostics
• Home medical devices
• Glucose monitoring kits
• Biomarker test kits
• Health screening tests

Headquarters

HQ city

New Territories

HQ country

Hong Kong SAR China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Operations, Marketing or Sales, Personnel, Infrastructure

Revenue model

1. Direct Product Sales: Sale of saliva-based test kits including Health 360, Kiss & Tell glucose monitors, amino acid tests, and specialty tests (cortisol, folic acid, cotinine, etc.) through e-commerce, retail, and distributor channels.
2. Consumable Test Kits: Recurring sales of consumable test kits and strips in various package sizes (7-test, 50-test packages) requiring ongoing repurchase for continuous monitoring.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels5 records

Core offering

eNano Health Limited manufactures a series of home-use saliva-based diagnostic test kits and medical devices for self-health management and disease screening. Its product portfolio centers on a patented P4 (Predictive, Preventive, Personalized, Participatory) platform that analyzes biomarkers in saliva to assess risks related to glucose, cardiovascular health, cancer, stress, smoking exposure, viral infection, hormones, amino acids, and other conditions. Core products include the Kiss & Tell saliva-based glucose monitor (first of its kind), the Health 360 multi-system health assessment, and a range of specialized P4 Tests supported by a cloud-connected mobile app.

Product overview

eNano Health Limited develops a portfolio of saliva-based diagnostic solutions for self-health management and disease screening, centered on its patented P4 (Predictive, Preventive, Personalized, Participatory) Test platform. The core flagship product is Kiss & Tell, the first-ever saliva-based glucose monitor for non-invasive blood glucose testing. The portfolio is anchored by Health 360, a comprehensive multi-system health risk assessment service analyzing multiple biomarkers from a single saliva sample covering brain, cancer, cardiac, diabetes, immune, kidney, liver, lung, nutrition, skin, stress, and stroke risks. Individual P4 Tests include specialized saliva tests for Cortisol (Stress), Essential Amino Acids, 20 individual amino acids (Alanine, Arginine, Asparagine, Aspartic Acid, GABA, Glutamic Acid, Glutamine, Glycine, Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Proline, Serine, Threonine, Tryptophan, Tyrosine, Valine), Skin Test (P4 Beauty), Folic acid/Folate, Cotinine (Smoking), Neopterin (Viral Infection), TMAO (Cardiac), Progesterone, and Insulin. The products are supported by a mobile application enabling result upload to cloud, family sharing, and historical data tracking. Tests are designed for home use with laboratory analysis available for comprehensive versions.

Differentiator

Problem solved

Functional benefit

Brands

• Kiss & Tell: Award-winning saliva-based glucose monitor for diabetes management and health screening.
• Health 360
• P4 Test Series

Products and services

• Health 360 Non-invasive saliva-based health risk assessment service that analyzes multiple biomarkers to identify potential issues related to brain health, cardiovascular function, cancer risks, diabetes, immune system, liver/kidney function, lung health, nutritional status, skin condition, stress levels, and stroke risk at early stages. Delivers comprehensive test reports with personalized lifestyle recommendations.
• Kiss & Tell Saliva Glucose Monitor First-ever saliva-based glucose monitor enabling non-invasive, painless blood glucose level testing without finger-pricking. Available in 7-test (HK$70) and 50-test (HK$350) consumable packages. Test results can be uploaded to cloud via mobile app and shared with family members. Ideal for Type II diabetic patients, pre-diabetics, and gestational diabetes patients.
• Cortisol (Stress) Test Saliva-based test measuring cortisol levels (steroid hormone regulating metabolism and immune response) to monitor stress levels and prevent health risks associated with high cortisol (cardiovascular disease, diabetes, osteoporosis) or low cortisol (fatigue, Addison's disease).
• Essential Amino Acids Test Saliva-based test measuring total level of nine essential amino acids (histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine) to reflect overall nutritional status and dietary protein adequacy.
• P4 Test – Alanine Individual saliva-based amino acid test measuring alanine level to monitor liver health and metabolic risk. Alanine plays roles in protein synthesis, glucose-alanine cycle, and energy metabolism via gluconeogenesis.
• P4 Test – Arginine Individual saliva-based amino acid test measuring arginine level for cardiovascular and metabolic health monitoring. Arginine supports protein synthesis, wound healing, immune defense, and nitric oxide production for blood vessel health.
• P4 Test – Asparagine Individual saliva-based amino acid test measuring asparagine level to monitor nervous system health and metabolic risk. Asparagine supports central nervous system function as a neurotransmitter precursor.
• P4 Test – Aspartic Acid Individual saliva-based amino acid test measuring aspartic acid level for neural health and metabolic balance monitoring. Aspartic acid functions as an excitatory neurotransmitter and precursor for nucleotides and neurotransmitters.
• P4 Test – Lysine Individual saliva-based amino acid test measuring lysine level for immune defense and metabolic balance monitoring. Lysine supports immune function, collagen synthesis, calcium absorption, and tissue repair.
• P4 Test – Methionine Individual saliva-based amino acid test measuring methionine level for protein synthesis capacity and metabolic balance monitoring. Methionine supports detoxification, methylation reactions, and antioxidant capacity via glutathione synthesis.
• P4 Test – Phenylalanine Individual saliva-based amino acid test measuring phenylalanine level for neurological function and metabolic balance monitoring. Phenylalanine serves as precursor for dopamine, norepinephrine, serotonin, thyroid hormone, and melanin.
• P4 Test – Proline Individual saliva-based amino acid test measuring proline level for protein quality and metabolic balance monitoring. Proline maintains connective tissue integrity in collagen and elastin, supporting wound healing.
• P4 Test – Serine Individual saliva-based amino acid test measuring serine level for neurological function and metabolic balance monitoring. Serine supports neurotransmitter synthesis, one-carbon metabolism, and phospholipid synthesis.
• P4 Test – Threonine Individual saliva-based amino acid test measuring threonine level for immune function and metabolic balance monitoring. Threonine supports antibody production, connective tissue integrity, and gut barrier function.
• P4 Test – Tryptophan Individual saliva-based amino acid test measuring tryptophan level. Tryptophan is precursor for serotonin, melatonin, and niacin synthesis, supporting neurological function and metabolic harmony.
• P4 Test – Tyrosine Individual saliva-based amino acid test measuring tyrosine level for neuroendocrine health and metabolic balance monitoring. Tyrosine serves as precursor for dopamine, norepinephrine, thyroid hormone, and melanin.
• P4 Test – Valine Individual saliva-based amino acid test measuring valine level for muscle health and metabolic balance monitoring. Valine is an essential branched-chain amino acid supporting muscle metabolism and glucose regulation.
• Skin Test (P4 Beauty) Saliva and Sebutape-based skin health test measuring pore pattern and sebum secretion. Basic version (HK$25) for home use compares tape with reference image; Comprehensive version (HK$250) includes laboratory analysis of amino acids and vitamins plus personalized cosmetics recommendations.
• Folic acid & Folate (Stroke) Test Saliva-based test measuring folic acid and folate levels to predict disease risks including stroke, dementia, pregnancy complications, cancer, and cardiovascular issues. Both deficiency and excess of folate/folic acid pose health risks.
• Cotinine (Smoking) Test Saliva-based test measuring cotinine levels (metabolite of nicotine) to evaluate exposure to firsthand and secondhand smoke. Cotinine half-life is approximately 19 hours and elevated levels increase risks of lung cancer, heart disease, and stroke.
• Neopterin (Viral Infection) Test Saliva-based innate immune system test for screening viral infections including COVID-19. Neopterin is an indicator of immune system activation. High levels indicate possible viral infection, recent vaccination, or injury. Provides early detection before antigen or antibody detection, with negative predictive value greater than 95% suitable for large-scale screening.
• TMAO (Cardiac) Test Saliva-based test measuring Trimethylamine N-oxide (TMAO) levels to predict heart disease and stroke risk. Elevated TMAO from red meat, eggs, and dairy consumption is associated with cardiovascular disease risk.
• Progesterone Test Saliva-based test measuring progesterone levels for monitoring ovulation and pregnancy health. Abnormal levels can cause menstrual irregularities and increase risk of miscarriage.
• Insulin Test Saliva-based test measuring insulin levels for early detection of pre-diabetes risk. High insulin levels can indicate Cushing's syndrome, obesity, insulin resistance (Type II diabetes); low levels may indicate diabetes or pancreatic disease.

Quantifiable outcome

• High percentage of accuracy in detection of normal to high glucose levels validated with thousands of laboratory and human samples
• +2 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature4 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Ascent International LimitedcoreChannel Partner/ Reseller/ DistributorHong Kong-based distributor for Kiss & Tell saliva glucose monitor products. Enables broader retail distribution of eNano Health products in the Hong Kong market through their distribution network.
• WatsonscoreChannel Partner/ Reseller/ DistributorMajor Hong Kong pharmacy chain retailer carrying eNano Health products including Kiss & Tell in-pharmacy stores throughout Hong Kong.
• AmazoncoreChannel Partner/ Reseller/ DistributorGlobal e-commerce marketplace listing for Kiss & Tell saliva glucose monitor enabling international sales and distribution.
• Happy RetiredminorChannel Partner/ Reseller/ DistributorHong Kong senior-focused online shopping platform distributing P4 test products and Kiss & Tell glucose monitors.
• health.ESDlifeminorChannel Partner/ Reseller/ DistributorHong Kong health-focused e-commerce platform for Kiss & Tell product sales.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Healthy.io: Smartphone-based at-home diagnostic testing company (urinalysis, wound care) leveraging consumer devices — comparable 'home-use connected diagnostic' approach and regulatory positioning.
• Thriva: UK-based at-home blood testing subscription service providing recurring wellness diagnostics to consumers — comparable recurring at-home diagnostic testing proposition.
• myLAB Box: Online retailer of at-home diagnostic test kits covering infectious disease, fertility, drugs and wellness — directly comparable e-commerce-led home diagnostic testing assortment.
• Everlywell: Direct-to-consumer at-home diagnostic testing brand offering a broad portfolio of saliva, blood and urine test kits sold online and through retail — closest direct competitor in business model and consumer positioning.
• Cue Health: At-home molecular diagnostic testing platform (COVID, respiratory, sexual health) with connected readers and consumable cartridges — directly comparable connected home lab device model.
• LetsGetChecked: At-home diagnostic testing platform covering hormones, sexual health, wellness and chronic conditions, with a mix of self-collect and lab-processed tests — directly comparable DTC diagnostics model.
• Viome Life Sciences: Saliva-based consumer diagnostics company focused on gut microbiome and oral microbiome testing with personalized nutrition recommendations — directly comparable saliva-first, AI-driven consumer testing model.

Emerging players

• 23andMe: Consumer saliva-based testing company with health, ancestry and trait reports — adjacent saliva-first consumer model with related (though genetically focused) biomarker positioning and DTC go-to-market.

Broad incumbents

• Dexcom: Global leader in continuous glucose monitoring hardware and software — broad incumbent whose CGM technology sets the accuracy, evidence and reimbursement benchmark that any saliva-based glucose entrant must beat.
• Abbott Diabetes Care: Owner of the FreeStyle Libre CGM franchise, dominant in glucose self-monitoring — broad incumbent with deep retail, payor and clinical relationships that constrain new entrants' go-to-market options.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/enano-health-limited

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about eNano Health Limited