Our Story

Moxie Med Spa is a full scale med spa located in Denver, CO. We specialize is services for men and women, head to toe. Our “about us story” is built from the passion, drive and ambition of Ronica Kirwin, owner, and the dedicated and talented women of the Moxie Team, who year after year continue to make Moxie Med Spa the #1 choice in multiple categories, from best med spa, to best hair removal, and more.


Moxie started as a small two room waxing studio located in a small 600sf space hidden off the beaten path in a small, quiet neighborhood. Since our conception in 2006 we have persevered and have accomplished so many achievements we are so proud of. We have quadrupled in size, moving to a larger location to better serve the hundreds of men and women we see each month.

Growing from a staff of 2, to a full time team of 12 dedicated and talented women who each day show up to work in a industry we love, meeting wonderful new people each day, and creating long lasting relationships with our Moxie guests who become like family to us.Expanding from only being open 4-5 days a week of mainly just waxing services, to being open 7 days a week for 12 hours a day with a robust menu.


We are: a small business that is owned by one woman who has a passion in her heart and the ambition to make her dream come true.

We are: a small business that is trusted by long standing team members who believe in the vision that Moxie is driven by, team members who love being a part of forward thinking small business that allows them to be who they are, and know that they are valued for who they are, what they offer and knowing their voice is heard.

We are: a small business that rely on the communities of people who surround us to be successful. We are beyond grateful and honored that each month, thousands of people allow us the opportunity to earn not only their initial business, but also repeat business month after month, year after year.


Humbly, we thank you for allowing us to continue to do what we love every day. We love our clients, the services we provide, and the community we live in. We know there are many options in this industry and we appreciate you choosing us, and allowing us the opportunity to earn your business.
From all of us at Team Moxie, we thank you.

Our Staff

Ronica Kirwin


Ronica is the owner of Moxie Med Spa and Moxie Sugar, and has over a decade of experience in the industry, holding a Master and Manager’s license in Cosmetology, specializing in skin care. Ronica also holds a BS degree in Computer Science, a BS in Holistic Health and a BA degree in Organizational Leadership and Communication. Ronica also has a Masters degree in Natural Medicine, and her Doctorate and PhD in Natural and Integrative Medicine. Ronica also holds over 200 certifications.

Starting small but with a big vision, Ronica has grown Moxie Med Spa from a simple two-room studio into a larger 5 room full-service med spa with a warm, relaxing environment for men and women. Her dedication to esthetic excellence is reflected in the winning reviews Moxie has garnered year after year in multiple categories, competing against corporate chains and large companies. Ronica is passionate about her business and that’s why you’ll find out in the community sharing Moxie with others or teaching new services to aspiring estheticians. She loves getting to know the clients and creating a bond with the amazing people who make Moxie what it is.

That dedication goes beyond service, as Ronica and her husband created the sugar wax lauded by Moxie clients and popular nationwide and is now manufactured locally in Colorado in the Moxie Sugar Factory employing local men and women and putting money back into the community. Moxie Sugar Wax is available in beauty supply stores, salons, spas and major retailers. Visit www.moxiesugar.com for more information.

Ronica has won many awards throughout her career most recently was named one of Colorado’s Top Ten Women to Watch by Colorado Biz Magazine for the second year in a row. Her recognition of strong leadership, ambition and building her two businesses has led her to become a well known name in Colorado and throughout the industry nationwide. Ronica is recruited often for public speaking engagements, training, educating at a variety of classes, seminars and events, and is a mentor for many aspiring entrepreneurs and small business owners. Her passion for helping others succeed is one of the many things she is admired for.

Ronica is married to her childhood sweetheart and enjoys traveling, board games, comedy shows and spending time outdoors with her husband and two kids.

Dr. Thomas Narsete MD


Thomas Narsete M.D. graduated from Loyola Stritch Medical School in 1974. He trained in general surgery at he University of Wisconsin Department of Surgery. During that time, he decided to become a plastic surgeon,and finished 2 years of residency in plastic and reconstructive surgery at the University of New Mexico. He continued his training with a fellowship in hand and microsurgery.

He has over thirty years of experience in the plastic surgery field, and has 20 publications. He specializes in cosmetic facial surgery, body contour surgery, and Brazilian Buttock Surgery. Dr.Narsete also donated his time to perform reconstructive surgery in deformed children in underdeveloped countries.

He had the honor of performing life altering surgery on over three hundred deformed children. He presently practices in Denver, and works as a medical director for medical spas.

Dr.Narsete has received several awards for having excellent internet reviews.

Corrin Knudson, General Manager


Corrin has a passion for driving businesses and creating a one-of-a-kind luxury experience for the guests at Moxie Med Spa. Striving for and exceeding to elevate the guests experience at Moxie, Corrin draws from her many years in spa management and her natural ability to culminate lasting relationships to do just that at Moxie.

A small glimpse into Corrin’s day to day include client relations, memberships, overseeing the spa and the day to day operations managing the entire staff and all of our guests. These are just a small snippet of the many hats Corrin wears to build upon Moxie Med Spa’s reputation as Denver’s #1 Med Spa. Corrin truly loves getting to know all of our Moxie clients who over the many visits with us become our Moxie family. Please take a moment to introduce yourself as Corrin has a passion and a dedication to ensuring every experience you have at Moxie meets your expectations and glow or grow, all feedback is appreciated.

When Corrin isn’t building Moxie towards greater success she can be found spending times outdoors with her dog. As a Colorado Native, Corrin spends as much time as she can outdoors enjoying all our great state has to offer. Fun Fact! Corrin is a triplet of a sister and a brother, and they share one younger sister to complete their family. Corrin’s dad was a baseball player for the Rockies!

Heidi A. Schneeveis, Paramedical Laser Specialist and Master Aesthetician

Heidi has 21 years of experience in the industry, and is an expert in laser hair removal and sugar waxing. She has a passion and enthusiasm for educating her clients in all areas of their skin care needs. She has been with Moxie Sugar and Laser studio for nearly 11 years.
She has vast knowledge of multiple lasers, always offers superior service, and is satisfied when the client is happy. She has a warm, friendly nature that instantly makes you feel welcome, and her confidence and attention to detail will ensure you trust Heidi right away. Your comfort and safety are absolutely paramount to her.
She grew up in Palo Alto California, and moved to Denver in 1990 right after high school. She has also worked in Chicago and Los Angeles, but couldn’t stay away from Denver for long.
Heidi loves hiking when its not too sunny out, old movie theaters, vintage spots on Broadway, and repurposing furniture. She also adores her growing collection of house plants.

Samantha, Master Esthetician 

Samantha is an expert in sugar waxing and laser hair removal and has a passion for skin services. She is great at educating and guiding you in the right direction for your individual skin needs. She has an outgoing easy nature, and positive energy about her, and you are sure to feel comfortable right away with Samantha. Samantha loves the outdoors, the Broncos, and is always looking for ideas for new adventures!

Sarah B., Esthetician 

Sarah has been with Moxie for over a year now. Sarah has a passion for waxing and laser hair removal, along with working with clients on their skin care needs. Sarah is detailed, and thorough, and her easy demeanor and calming nature puts you at ease instantly. Sarah comes to us from Florida, and while misses the sandy beaches, loves learning what Colorado has to offer. Previous to Florida, Sarah lived in Pennsylvania and is ready for a white winter again after the sunny holidays in Florida.

Demi-Medical Esthetician

Demi is our newest team member at Moxie! She has been with us for a few months now and has already built up quite a following! Demi is certified in chemical peels, dermaplanes, microdermabrasion, teeth whitening and lash/brow tints. She is currently training to become certified in microneedling, laser hair removal, and electrolysis and will soon obtain certification in injectables. She aspires to do Dysport/Botox, filler, kybella, and more and her goals are to learn as much as possible and advance in medical aesthetics. Originally from Santa Barbara, California Demi moved here to be closer to family. In her spare time she enjoys yoga, tennis, and trying new restaurants with friends. We are so excited to have Demi as part of the Moxie family. Join us in welcoming her next time you’re in.

Haven, Esthetician

Haven is a Montana native who moved to Colorado to pursue her dreams of working in Esthetics. Haven joined the Moxie team after graduating from the College of International Esthetics with advanced certifications in laser hair removal, dermaplaning, injectables, chemical peels and micro-needling. Haven aspires to educate people on optimal skin health and cater to all clients skin care needs individually.In her free time she enjoys exploring the outdoors, cheering on The Colorado Rockies or working out.


Sarah is our client care advocate at Moxie Med Spa and the first voice you’ll hear on the phone, or the first voice you’ll see when you walk in the door. Sarah has a natural ability to create a calming environment to those around her, and through her many years in the spa industry has brought her expertise to enhance the customer relationships to Moxie Med Spa. Sarah is passionate about creating a positive atmosphere for everyone who walks in our doors, whether it be a question with a service or booking an appointment, Sarah is your go-to guru.

Outside of work Sarah enjoys traveling with her boyfriend, spending times with her friends and family and spoiling her dog. As you can tell, all of us at Moxie love our fur babies!