A licensed esthetician since 2001. Kristina is passionate about helping clients achieve healthy, radiant skin while enhancing their natural beauty. After taking time away from her career to raise her family, she returned to the profession with the same passion for skincare and a renewed appreciation for the confidence that healthy skin can inspire.

As a proud member of the Powell community, Kristina enjoys building lasting relationships with her clients and providing personalized care tailored to each client’s unique skincare goals.

What she loves most about her work is being part of a team that is genuinely dedicated to making a difference. Seeing clients leave feeling refreshed, confident, and glowing is the most rewarding part of what she does.

A licensed esthetician since 2001. Kristina is passionate about helping clients achieve healthy, ... Read More

Anna Castellanos, MSN, APRN, C-NP: Anna is the co-founder and owner of The Confidence Lab. She received her Master of Science, Family Nurse Practitioner degree from the University of Cincinnati. During her years of direct patient care, she has held positions in areas such as Skilled Nursing, Neuro Step Down, Medical-Surgical/Ortho, Plastic/Cosmetic Surgery PACU, Family Practice, Acute Care, and Neuro Critical Care. Anna and her husband Luke live in Powell and have 5 children: four boys and one girl. During her downtime, she loves to spend time with her large immediate and extended family, vacation, and cook. She is also a huge sports fan. Her faith and passion drive her to make meaningful connections with each patient she encounters. She truly enjoys the connection she makes with each patient leading to a meaningful, trusting patient/provider relationship. Her specialties are GLP-1 prescribing and management, lip filler/full facial balancing, BBL/Moxi, and full face wrinkle relaxers. Through the Confidence Lab Anna looks forward to planning and customizing a beauty and/or wellness plan with your specific goals in mind!

“Some people are born with confidence and other gain confidence through resilience, hard work, and perseverance. No matter who you are, remember you are one of a kind. There is no one else like you. You possess God given gifts and abilities that are unique to you. Be confident in that. Confidence is one of your most beautiful and powerful assets.”

-Anna

Anna Castellanos, MSN, APRN, C-NP: Anna is the co-founder and owner of The Confidence Lab. She re... Read More

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Stefanie is a Head Spa Specialist at The Confidence Lab, passionate about creating relaxing, results-driven scalp and skincare experiences. She focuses on promoting healthy hair and total relaxation through personalized treatments that leave clients feeling refreshed and confident.

Stefanie is a Head Spa Specialist at The Confidence Lab, passionate about creating relaxing, resu... Read More

Hannah Kelly is an Advanced licensed esthetician passionate about helping clients feel confident, cared for, and comfortable in their skin. She takes a personalized approach to every treatment, focusing on healthy skin, visible results, and creating an experience that feels both relaxing and intentional.

With a love for skincare and beauty, she enjoys customizing treatments to each client’s individual skin goals and lifestyle. From advanced skincare treatments to brows and lashes, her goal is always the same: to enhance what makes each client feel like their best self.

She believes skincare is more than just a treatment: it’s a form of self-care, health, and an opportunity to take time for yourself. Building genuine relationships with her clients is one of her favorite parts of being an esthetician.

Outside of the treatment room, Hannah loves spending time with her family and friends, staying active and prioritizing fitness, traveling and experiencing new places, and most importantly, growing in her faith. Her faith plays an important role in how she lives her life and connects with the people around her.

Hannah Kelly is an Advanced licensed esthetician passionate about helping clients feel confident,... Read More

Ashley Williamson, MSN, APRN-CNP, is a board-certified Family Nurse Practitioner, Metabolic & Aesthetic Clinician, and co-founder of The Confidence Lab in Powell, Ohio.

Ashley specializes in GLP-1 metabolic care, advanced skin rejuvenation, customized skincare planning, full facial balancing, injectable treatments, wrinkle relaxers, and whole-body wellness.

Her approach is highly individualized. Ashley believes no two patients should receive the exact same treatment plan. Whether the goal is metabolic health, healthier skin, facial balancing, or overall rejuvenation, she creates a plan based on the patient’s goals, anatomy, skin concerns, lifestyle, and what will best support a natural, balanced result.

In metabolic care, Ashley focuses on more than the number on the scale. She helps patients understand how treatment works while supporting nutrition, muscle preservation, side-effect management, and long-term success.

In aesthetics, Ashley creates customized treatment plans that may include skin treatments, skincare, facial balancing, injectables, wrinkle relaxers, or a combination of approaches depending on the individual patient. Her goal is to improve skin quality, restore balance, preserve natural features, and create results that feel thoughtful and personalized.

She earned her Master of Science in Nursing from Chamberlain University and has a clinical background in Critical Care, Step-Down ICU, Urgent Care, and Family Practice. She has also served as a volunteer provider caring for uninsured and underserved patients.

Ashley’s faith, integrity, and commitment to continued learning guide the way she cares for her patients and the standards she brings to her practice. Her goal is for every patient to feel heard, educated, and confident in the plan created specifically for them.

Ashley is always happy to connect with patients, learn what matters most to them, and create a personalized plan that evolves with their goals, lifestyle, and needs over time.

Outside the practice, Ashley is a devoted mother and board member of a private equestrian nonprofit. Her passions include travel, art, nature, horses, continued education, and building a life and practice centered around purpose and meaningful patient care.

“True beauty and wellness are built from the inside out. I treat the whole person, the health, the weight, the face, the skin, and the story behind all of it.”

— Ashley Williamson, MSN, APRN-CNP

Ashley Williamson, MSN, APRN-CNP, is a board-certified Family Nurse Practitioner, Metabolic &... Read More