Doctor's Best
Doctor's Best Inc. is a private, California-based dietary supplement company owned by Chinese conglomerate Xiamen Kingdomway Group, selling science-based vitamins, minerals, and specialty supplements to health-conscious consumers through its own e-commerce site, the iHerb marketplace, and U.S. retail channels expanded by the 2024 Viactiv acquisition.
- Company typePrivate
- Founded1990
- HeadquartersIrvine, United States
- Headcount51–100
- GTM typeB2C
- OfferingHardware or Manufacturing
What Doctor's Best does
Doctor's Best Inc. is a privately held nutritional supplement company headquartered in Tustin, California, founded in 1990 and wholly owned by Chinese conglomerate Xiamen Kingdomway Group. The company develops and markets science-based dietary supplements across categories including vitamins, minerals, herbs, amino acids, and specialty products, with core best-selling SKUs such as High Absorption CoQ10 with BioPerine, High Absorption Magnesium with Albion TRAACS chelates, PepZin GI (zinc-L-carnosine), Vitamin D3, Natural Vitamin K2 MK-7 with MenaQ7, and MSM with OptiMSM. The portfolio was expanded in June 2024 through the acquisition of the Viactiv calcium and magnesium chews brand, adding retail distribution and bone health products, and again in September 2025 with the High Absorption Hair & Skin Complex launched in partnership with Nutrition21's Lustriva ingredient. In January 2026 the company relaunched its NMN (beta-Nicotinamide Mononucleotide) line with three formulations following FDA New Dietary Ingredient authorization secured by parent Xiamen Kingdomway Group.
The company's differentiation rests on clinically validated branded ingredient partnerships (Albion TRAACS, BioPerine, OptiMSM, MenaQ7, Lustriva), cGMP manufacturing, third-party testing, "clinically proven" and "proven potency" quality badges, and a "Credible, Clear, Trustworthy" positioning reinforced by the 2026 Women's Choice Award for High Absorption Magnesium. Revenue is generated primarily through one-time direct-to-consumer purchases on doctorsbest.com, marketplace sales via a long-standing iHerb partnership that covers the United States, Hong Kong, South Korea, Singapore, China, and Taiwan, and U.S. retail channels unlocked through Viactiv. Best-selling items are priced between $7.99 and $22.99, with free shipping above $30, and the company does not disclose a subscription model.
In December 2025 Doctor's Best appointed Nate Challen, with prior experience at Sanofi and Johnson & Johnson, as President to lead digital innovation and market expansion. The company employs 51-100 people and continues to extend its geographic reach (notably through the iHerb partnership and the 9th Circuit trademark win in 2025 preserving its Nature's Day line sold in China, South Korea, and Taiwan), its product surface (NMN, beauty-from-within), and its channel mix (retail via Viactiv), while remaining entirely privately held with no public revenue disclosure.
Doctor's Best firmographics
Firmographics- Name
- Doctor's Best
- Legal name
- Doctor's Best Inc.
- Website
- https://drbvitamins.com
- Company type
- Private
- Founded year
- 1990
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Doctor's Best Inc. is a private, California-based dietary supplement company owned by Chinese conglomerate Xiamen Kingdomway Group, selling science-based vitamins, minerals, and specialty supplements to health-conscious consumers through its own e-commerce site, the iHerb marketplace, and U.S. retail channels expanded by the 2024 Viactiv acquisition.
- Ownership category
- akta.pro rank
Doctor's Best industry classification
Industry- Product category
- Dietary Supplements
- NAICS
- Medicinal and Botanical Manufacturing (325411), Food (Health) Supplement Retailers (456191)
- SIC
- Medicinal Chemicals & Botanical Products (2833)
- akta.pro primary industry
- Functional Foods & Supplement Formats (Gummies, Chews, Powders, Shots) (CRADAGAI)
- akta.pro secondary industries
- Vitamins & Minerals (Single Nutrients) (CRADAGAB), Herbal & Botanical Supplements (CRADAGAD), Women’s Health Supplements (Prenatal, Menopause, Hormonal) (CRADAGAK), Specialty Condition Supplements (Sleep, Stress, Heart, Joint, Gut, Immunity) (CRADAGAE)
Keywords
Where Doctor's Best is headquartered
LocationHeadquarters
- HQ city
- Irvine
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Doctor's Best business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Marketing or Sales, Personnel, Technology or R&D, Others
Revenue model
- Direct Supplement Sales: Doctor's Best generates revenue through direct-to-consumer sales of nutritional supplements via their e-commerce website and through retail partnerships. Products are sold as one-time purchases with no subscription model mentioned. Revenue is driven by product sales across categories including vitamins, minerals, herbs, amino acids, and specialty supplements.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Best Sellers - Mid-range pricing |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels5 records
Doctor's Best product offering
Product offeringCore offering
Doctor's Best manufactures and sells science-based dietary supplements including vitamins, minerals, herbs, amino acids, and specialty formulations targeted at health-conscious consumers. Products are formulated with clinically validated ingredients (e.g., Albion TRAACS chelated minerals, BioPerine, OptiMSM, Lustriva, MenaQ7) and distributed primarily via direct-to-consumer e-commerce (doctorsbest.com), the iHerb marketplace, and retail channels through the acquired Viactiv brand.
Product overview
Doctor's Best is a nutritional supplement company offering science-based vitamins, minerals, and specialty supplements through retail and e-commerce channels. The portfolio includes best-selling core products such as High Absorption Magnesium, High Absorption CoQ10 with BioPerine, PepZin GI, Vitamin D3, Vitamin K2 MK-7 with MenaQ7, and MSM with OptiMSM. The company operates across multiple health categories including Antioxidant, Beauty, Bone Support, Brain Support, Digestive Support, Eye Support, Heart Support, Immune Support, Joint Support, Men's Health, Women's Health, Sports Nutrition, and Mood/Sleep. Following the June 2024 acquisition of Viactiv (calcium and magnesium chews brand), Doctor's Best expanded its bone health portfolio. The company also launched Hair & Skin Complex with Lustriva (September 2025) in partnership with Nutrition21 and relaunched its NMN supplement line (January 2026) after FDA NDI authorization. Products feature science-based formulations with clinically validated ingredients and are marketed under a science-based nutrition positioning with emphasis on transparency, third-party testing, and CGMP manufacturing standards.
Differentiator
Problem solved
Functional benefit
Products and services
- High Absorption Magnesium Magnesium supplement featuring lysinate and glycinate chelated with Albion TRAACS for enhanced absorption, available in 100mg tablets in 120 and 240 count sizes, supporting bone and muscle health for health-conscious consumers.
- High Absorption CoQ10 with BioPerine Coenzyme Q10 supplement at 100mg with BioPerine for enhanced bioavailability, supporting energy production and muscle function; available in 120 softgels.
- PepZin GI (Zinc-L-Carnosine Complex) Gut health supplement combining zinc and L-carnosine in a vegetarian capsule, supporting digestive function and gut barrier integrity.
- Natural Vitamin K2 MK-7 with MenaQ7 Vitamin K2 supplement featuring natural MenaQ7 (menaquinone-7) at 100mcg per veggie capsule, supporting bone and cardiovascular health.
- Vitamin D3 Vitamin D3 supplement available in 125mcg (5,000 IU) softgel format, supporting bone health, immune function, and calcium absorption.
- MSM with OptiMSM
Quantifiable outcome
- Over 85% of women who used High Absorption Magnesium would recommend the product
Companies that use Doctor's Best
Customer profileNamed customers1 record
Segments5 records
Ideal customer profiles3 records
Doctor's Best technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Doctor's Best partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- Xiamen Kingdomway GroupcoreXiamen Kingdomway Group is the parent company of Doctor's Best. The parent company received FDA NDI (New Dietary Ingredient) authorization for beta-NMN supplements, enabling Doctor's Best to relaunch its NMN product line.
- iHerbcoreiHerb is a long-standing marketplace partner for Doctor's Best, making supplements accessible to global consumers. The partnership includes promotional campaigns such as the annual 11.11 Wellness Mega Sale and ongoing product distribution across multiple regions.
- Nutrition21coreStrategic partnership with Nutrition21 to launch the High Absorption Hair & Skin Complex with Lustriva. This collaboration brings clinically validated ingredients to market for addressing hair loss and skin aging concerns.
Scale indicators2 records
Recent moves6 records
Expansion highlights5 records
Doctor's Best competitors and assessment
Company assessmentDirect peers
- Nature's Way: Herbal and botanical-focused supplement brand with mass-market retail presence. Comparable on category overlap (herbal/botanical supplements, vitamins) and was specifically the trademark counterpart in Doctor's Best's 9th Circuit case.
- Jarrow Formulas: Science-based supplement brand with broad catalog (vitamins, minerals, probiotics, specialty). Comparable on ingredient-quality positioning, D2C and specialty retail distribution, and breadth of categories.
- Garden of Life: Premium, certified-organic and sport-certified supplement brand with broad category coverage and retail distribution. Comparable on premium positioning, broad catalog, and emphasis on ingredient quality.
- NOW Foods: Large, broad-catalog supplement manufacturer with GMP-certified production and wide retail and online distribution. Comparable on multi-category breadth, value-to-mid pricing, and D2C plus third-party retail mix.
- Life Extension: Long-standing science-based supplement brand with a broad multi-category catalog (vitamins, minerals, hormones, longevity). Most directly comparable to Doctor's Best on premium science positioning and D2C-led sales.
- Thorne: Premium, science-backed supplement brand with practitioner and D2C channels. Closely comparable on clinical validation, high-quality ingredients, and mid-to-premium price points across multiple health categories.
- Pure Encapsulations: Practitioner-grade, hypoallergenic supplement brand emphasizing purity and clinical evidence. Directly comparable on science-based, doctor-formulated positioning and quality certifications.
- Solaray: Herbal-and-nutrient supplement brand with broad category coverage and D2C plus retail distribution. Comparable on multi-category supplements portfolio and ingredient-quality positioning.
Emerging players
- Ritual: D2C-first, subscription-based essential vitamins brand with transparent sourcing and premium positioning. Comparable on science/transparency narrative and D2C channel, but contrasts with Doctor's Best on subscription mechanics and younger brand.
Broad incumbents
- Nature Made (Pharmavite): Mass-market vitamin and supplement brand owned by Pharmavite (雀巢 Nestlé). A larger incumbent with broader retail distribution and bigger marketing budget; overlaps on vitamins/minerals but operates at much greater scale.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Doctor's Best social profiles
Digital presenceDoctor's Best compliance and trust
Trust signalCompliance4 records
Doctor's Best financial estimates
Financial estimateRevenue estimate
Valuation estimate
Doctor's Best leadership team
Management profileNumber of profiles
Profiles3 records
Doctor's Best subsidiaries and ownership
Company hierarchySubsidiaries1 record
Doctor's Best funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Doctor's Best M&A and investment
M&A and investmentM&A1 record
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Doctor's Best
What does Doctor's Best do?
Doctor's Best manufactures and sells science-based dietary supplements including vitamins, minerals, herbs, amino acids, and specialty formulations targeted at health-conscious consumers. Products are formulated with clinically validated ingredients (e.g., Albion TRAACS chelated minerals, BioPerine, OptiMSM, Lustriva, MenaQ7) and distributed primarily via direct-to-consumer e-commerce (doctorsbest.com), the iHerb marketplace, and retail channels through the acquired Viactiv brand.
Is Doctor's Best a public or private company?
Doctor's Best is a private company. It is classified as corporate owned and is currently operating.
When was Doctor's Best founded?
Doctor's Best was founded in 1990. It employs 51 to 100 people.
Where is Doctor's Best based?
Doctor's Best is headquartered in Irvine, United States, in the North America region.
How does Doctor's Best make money?
One revenue line is on record: direct Supplement Sales.
Who are Doctor's Best's main competitors?
Direct peers on record are Nature's Way, Jarrow Formulas, Garden of Life, NOW Foods, Life Extension, Thorne, Pure Encapsulations and Solaray. Ritual is listed as an emerging player. Nature Made (Pharmavite) is listed as a broad incumbent.
Does Doctor's Best have an API?
No public API is recorded for Doctor's Best.
What industry is Doctor's Best in?
Doctor's Best's product category is Dietary Supplements. Its primary akta.pro industry code is CRADAGAI, Functional Foods & Supplement Formats (Gummies, Chews, Powders, Shots), with a secondary code of CRADAGAB, Vitamins & Minerals (Single Nutrients). Its NAICS code is 325411 and its SIC code is 2833.