About

Jessica St. Jean, NP-C, Owner of JSJ Aesthetics

Jessica is a Certified Family Nurse Practitioner. She began her career in 2004 at Brigham and Women's Hospital in Boston, caring for patients post Thoracic Surgery. Her experience as a nurse inspired her to begin a second career in aesthetic medicine, launching her own business in 2014, JSJ Aesthetics. At JSJ Aesthetics in Methuen, MA, and Salem, NH, Jessica performs in-demand cosmetic injectable services including Botox, Dysport and Restylane. She also offers Hydrafacial, Skinceuticals, CoolSculpting, CoolTone, Ultherapy, PDO Max thread lifts, microneedling, Natural Growth Factor Injections, sexual wellness, treatment for urinary incontinence, Bioidentical hormone replacement therapy, IV hydration, nutrition and much more. Jessica is also an expert trainer in the field of medical aesthetics. In 2018, Jessica was selected as a Faculty Member in the Galderma Aesthetic Injector Network (GAIN), a position that has allowed her to pursue her passion of teaching while continuing to advance her skill set. She has since begun offering private injectable training sessions to medical professionals. In 2020, Jessica was selected as a trainer for PDO Max where she teaches the art of thread lifting and collagen building. She prides herself on extending her love for teaching to her patients and peers. Jessica is a 2003 University of New Hampshire, Durham graduate with a Bachelor of Science in Nursing and received her Master of Science in Nursing from Rivier University in 2019. She is a member of the Massachusetts Nurses Association and Sigma Theta Tau.

Kaylie Croteau

Kaylie began her career at JSJ Aesthetics in 2017 and has since become an invaluable part of the team. Kaylie schedules clients, returns emails, answers the phones, processes rewards and is typically the first and last person each patient at JSJ sees during their visit. If you have been to JSJ you know Kay!

Kaylie graduated from Pelham High School in 2020 and is now pursuing an accelerated RN to BSN track at Mass College of Pharmacy in Boston, MA. She is hopeful to graduate in 2023 with a dream to work as a neonatal ICU nurse and of course with us also as a Nurse Injector.

Sarah Hanson

Sarah is a Registered Nurse holding her license in both Massachusetts and New Hampshire. She began her career in the medical field in 2015 as a Medical Assistant in Primary Care and Dermatology in Boston MA. She became an RN in 2019 and from there practiced in Urgent Care, Medical-Surgical, Oncology, and Psychiatric Nursing. Sarah has always had a passion for wellness and self care and also received her Aesthetician License in 2008 from Elizabeth Grady. Sarah began working in Medical Aesthetics in 2020 and joined the JSJ team in September 2021.

Danielle Ayotte

Medical Office Manager, Certified Medical Assistant, Medical Aesthetic Consultant, Team Leader.

Danielle has received her ABS in Medical Management and has been a certified Medical Assistant for over 20 years. She has a wealth of knowledge in medical aesthetic and regenerative medical procedures and has both assisted in and performed many procedures. Over the last two years Danielle has focused her career on Customized Consultation, educating and guiding clients on anti-aging procedures, options, and Creating a unique long-term plan for each individual client.

She is thrilled to join this incredible team as Medical Manager bringing her years of experience to JSJ Aesthetics and Wellness! Danielle resides in Pelham, NH with her three beautiful boys and fiancé Sean.

Maddie Leavitt 

Our stylist Maddie is a graduate of Continental Academy of Hair Design where she discovered her passion for the industry.
Over the past five years of her career she has polished and explored her passion for hair design. Maddie has interned with various stylists and completed various continuing education courses on upcoming trends and techniques. She continues to expand and grow her knowledge of the industry building up her craft and resume.
Maddie specializes in hand-tied weft extensions, natural color, fantasy color, and balayage technique and has impeccable reviews.
Maddie enjoys spending time with family and friends and brings great energy to the JSJ family.

Malazia Nassiff

Malazia is a graduate of Salem High school who has always loved everything beauty with her eye for detail. She then graduated Catherine Hinds Institute of Esthetics in 2015 as a Master Esthetician and Professional Makeup Artist, with doing over 100 weddings in the last 7 years.

She is knowledgeable in numerous of skincare lines like SkinCeuticals, Allastin, while also bringing a variety of services to JSJ.

Malazia specializes in skincare treatments like HydraFacials, while also servicing brow services such as brow waxing, threading, lamination, brow tint and henna. Her main love is bringing out the natural beauty in those doing makeup! On days she isn’t at JSJ, she is enjoying motherhood of her son and being around her loved ones.