Meet the Team

Sarah Mirsini

Founder & CEO

Sarah's 20+ years of passion for wellness and plant medicine made her come up with the idea of MĀSK. After graduating from IWA as a Holistic Wellness Coach and getting certified in Herbalism, she dug deeper in the Cannabis world and discovered the healing powers of Cannabinoids. She believes in a holistic lifestyle where the inside counts just as much as the outside. Growing up on the islands of Greece and the mountains of Norway, she utilized the tools she was taught to form not just a lifestyle, but a brand.

Nick Finochio

Creative Director & Partner

Nick is a NYC based photographer who thrives on always being creative. Since moving to New York City, Nick has shot many campaigns for brands ranging from swimsuit, apparel and beauty. Nick has executed and directed all MĀSK campaigns and been evolving the brand since the beginning.

Valerie Rinaldi

Business Developer

Valerie loves the challenge of sales and discovering her customers' needs as well as establishing great partnerships and friendships. She is a strong believer in just being yourself and having great passion about our products. To her, her family comes first and she focuses on just surrounding herself with loving, genuine, positive people.

Chelsea Oostman

Business Developer

Chelsea has worked in the medical and aesthetic fields for over ten years. She has a Bachelor’s Degree in Science, and she enjoys educating herself on how procedures and products affect different skin types. When she’s not working, you can find her snuggling with her dog or outside appreciating nature. She believes in prioritizing client experience and the power of positivity. 

Brittany Blancato

Medical Aesthetician / Brand Ambassador

Brittany Blancato is a skin expert based out of New York City, and has been a V.I.P. & Celebrity Esthetician for more than 10 years.

Her trusted expertise and simple but effective methods using the best technologies and devices in the medical-grade esthetics world has made her one of the most sought-after experts in the industry.

Marco Larsen


Marco is the Founder of PUBLIC, NYC - a media strategy firm focusing on branding, PR, and communications. His methodology, PANIC, breaks down the abstract components of branding into measurable and actionable strategies.

He is on the Board of Trustees for The SETI Institute and co-founder of The Bedford Post Inn Restaurants in Bedford, NY. His book, "DON'T" The Essential Guide for Publicity in NYC (and any other city that matters) challenges Marketing and PR bad habits.

Ross Marchetta, MD

Chief Medical Officer & Partner

Ross Marchetta, MD is a Board
Certified Obstetrician/Gynecologist and an advocate of innovation in Women’s Health Care. He is an early innovator and physician leader in daVinci Robotic Surgery leveraging technology to achieve quality outcomes. His passions merged with the inception of The Spa at Yellow Creek which allowed him to provide a continuum of care from diagnosis to treatment to adjuvant alternative therapies.

Gisell Firpo

Content Creator

Gisell Firpo is a social media expert with experience in public relations, marketing, and content creation. Over the years she’s become fascinated with modeling, and has been featured in campaigns throughout fashion, skincare and music brands. 

Arleen West

Web Designer

Arleen believes the key to online success starts with a website that immediately tells the visitor who you are, what you do, and how to do business with you. Based in Minneapolis, she's been with MĀSK since 2019.