Meet Our Staff

Meet Our Staff

Kulani Mahikoa | President

Kulani Mahikoa is President of Purity Laboratories, Inc.  She has had successful careers both as a journalist and as an entrepreneur. 

After graduating from Lewis and Clark College, she worked for the Oregonian, KATU-TV and Community Press Newspapers in Portland, Oregon. 

Ms. Mahikoa also lived in Honolulu, Hawaii where she started Hawaiiana Products, that manufactured fragrances and bath products.  That company was sold to General Atlantic Corporation, a major stock holder of Duty Free International. 

She also founded Honolulu Premium Products, which became Maui Gold, Inc., the country's largest manufacturer of gemstone rings and also sold a range of products from country themed promotions to stuffed animals and luggage. Honolulu Premium Products won the distinction of being named one of the top companies in Hawaii by Hawaii Business magazine after only seven years in business and was also named by Inc. magazine to its list of 500 fastest growing companies in the nation for four consecutive years.  She served as President of Maui Gold, Inc., until she and her partner-husband David Humphrey sold the company to the international conglomerate, Jardine Matheson of Hong Kong.

Ms. Mahikoa and her husband also founded American Business Systems, Inc., a sales training organization and Winchester, Inc., a jewelry company, in Reno, NV. 

Contact: KMahikoa@gmail.com

David Humphrey | V.P. CEO

David Humphrey is Vice President and CEO of Purity Laboratories, Inc.

Humphrey is also an attorney and entrepreneur who founded several other large companies, including Maui Gold, Inc., formerly, Honolulu Premium Products that was named by Inc. Magazine to its Inc. 500 list of fastest growing companies in the nation for four consecutive years.  He also founded the Humphrey corporation that manufactured most of the frisbee type flying saucers in the world.

Humphrey graduated from Lewis and Clark College in Portland, Oregon and the

University of Washington Law School.  He became a member of MENSA International

during law school.  He also founded a public interest law firm called WashPIRG based in

Seattle, Washington. WashPIRG was initially funded by an annual contribution from over

250,000 college and university students in the State of Washington. It became the model

for Ralph Nader's PIRG organizations across the county. This year, WashPIRG is celebrating its 30th year of public service.  He also taught business and marketing at Hawaii Pacific University in Honolulu, Hawaii. 

Board and Affiliations
• Co-founder, MAPs (Medical Academy of Pediatric Special Needs)
• Co-founder, The Forum
• Former President, Made in Hawaii Association

• Board member, American Academy of Cannabinoid Medicine

Contact:  DKHumphrey@gmail.com 

Sonia Kapur | Laboratory Director

Dr. Sonia Kapur is a board-certified clinical chemist with over 20 years of experience in clinical laboratories and biologics. Dr. Kapur has extensive leadership training, having completed more than 1,000 hours in areas such as clinical development, quality system auditing, project management, inspection and compliance, regulatory agencies, strategic planning and business development. She is a global authority in novel laboratory testing technologies of the future, including dried blood and other body fluids in micro-sampling formats. As the COO and the Laboratory Director at AYUMETRIX, she leads the laboratory functions and all other operational logistics of the company.

Dr. Kapur spent the over 9 years of her career directing the laboratory testing services at ZRT Laboratory. At ZRT she was responsible for managing staff of 50+ and develop and help commercialize innovative, simple and convenient laboratory test methods. In addition to the commercial component, she also partnered with universities, government entities (such as NIH and CDC) and private health organizations on their IRB approved research studies. She was involved in driving collaborations among functions, stakeholders and partners across the business to optimize the total output of the organization for product development and business level projects. Sonia has been instrumental in leading multi-functional activities with accountability for complete service portfolio, budgetary and resource allocation.

Dr. Kapur holds a doctorate degree in molecular biochemistry. She is a highly sought clinical laboratory consultant, with dozens of peer-reviewed publications and abstracts, as well as numerous invited presentations.

Joshua Wyman | Lab Manager/QC/QA Manager

Joshua Wyman Lab Manager and Quality Control and Assurance Manager at Purity. He has more than 10 years of working experience in a laboratory environment and four years of experience in laboratory management with an extensive knowledge in regulatory compliance and cGMP requirements. He is skilled in method development and new instrument implementation with hands on experience with multiple analytical instruments including: HPLC, ICP-MS, UV-Vis, AA, TLC and IR. Detail oriented with expertise in analyzing, interpreting and solving problems using root cause analysis. 


He previously worked for Pacific Nutritional Inc as Quality Control Manager from 2004 until starting with Purity.

He earned a bachelor of science degree in chemistry from university of Oregon in Eugene, OR.