Jennifer “Zen Jenn” Demers, PA-C, Master Injector in Sarasota and Venice.
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Jennifer “Zen Jenn” Demers, PA-C, is a Master Injector at Eternal MedSpa in Sarasota and Venice, Florida. She is a board-certified, Florida-licensed physician assistant, in aesthetics since 2017, with a background in orthopedic trauma surgery. Her experience spans many different wrinkle relaxer medications, a wide range of dermal fillers, submental (under-the-chin) treatments, PRP, wellness injections, IV therapy and ablative laser treatments, and she leads weight loss and hormone consultations. She works under Medical Director Reuben W. Holland III, MD, FACEP.
Choose Jenn when you book. Not sure what to book? Try the Eternal Plan Builder.
What Jenn treats.
Natural-looking injectable plans, with a calm, detail-driven approach. Prices are the same at both clinics.
Wrinkle relaxers
Frown lines, forehead lines and crow’s feet. Botox, Daxxify, Dysport and Xeomin are $12 per unit; Letybo is $10. Both clinics.
Dermal fillers and Kybella
Natural-looking lips, smile and marionette lines, and facial balancing, at $629 per syringe. Kybella, an FDA-approved prescription injection for fat under the chin, is $649 per vial. Dissolving for hyaluronic acid filler is offered too. Both clinics.
PRP
Platelet-rich plasma (PRP) is prepared from a small sample of your own blood and used in selected skin and scalp plans. Sarasota only.
Wellness injections and IV therapy
B12 $29, glutathione $39, NAD+ $69 and vitamin C $29 per injection, at both clinics. IV therapy is in Sarasota. Jenn reviews your health history first.
Weight loss and hormones
Medical weight loss and hormone restoration start with a consultation, at both clinics. Not everyone is a candidate. Your health history, labs when needed and a clinical review decide.
DualMode laser
An ablative and non-ablative laser for stronger resurfacing of wrinkles, scars, rough texture and sun-damaged skin. Downtime varies with intensity. Sarasota only.
Consultations
Complimentary, at both clinics. Jenn reviews your goals, health history and timing, explains which treatments may fit and maps a plan.
Prices as published September 2026 and subject to change.
Jenn’s results, shown with permission.
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AfterPhotos are cropped, resized, corrected for color and lighting, and in some cases enlarged, the same way in both images. Nothing is retouched. Individual results vary.
About Jenn. Calm, precise care creates confidence.
Her approach
Jenn is known for her calm presence, detailed consultations and measured approach to aesthetic medicine. She takes time to explain options clearly, so guests understand what is realistic, what should be staged and what may not be the right fit.
Why “Zen Jenn”
The name reflects the way she makes guests feel during care: comfortable, informed, unrushed and confident in the plan. She is an excellent fit for guests who want a gentle but clinically grounded provider, especially if injectables make them nervous.
“Eternal is a place where clinical judgment and genuine care matter. I love being part of a team that wants every guest to feel seen, supported, and confident.”
Jenn’s credentials and experience.
- Board-certified PA-C. A nationally board-certified Physician Assistant-Certified, licensed in Florida as a physician assistant.
- Master of Physician Assistant Studies, 2008. Massachusetts College of Pharmacy and Health Sciences.
- Clinical background. She moved to Florida and built a career in orthopedic trauma surgery. It informs her respect for anatomy, tissue handling, healing, precision, guest education and thoughtful aesthetic planning.
- In aesthetics since 2017. She then trained as an aesthetic injector. Her experience covers many different wrinkle relaxer medications, a wide range of dermal fillers, submental (under-the-chin) treatments, IV therapy administration, weight loss and hormone consultations, and ablative skin treatments, and it grows as new medications and products are added. She and Antje Dangel, PA-C, have completed tens of thousands of treatments and procedures between them.
- Physician oversight: Medical Director Reuben W. Holland III, MD, FACEP, a board-certified emergency physician.
Master Injector is a title earned after completing specialized training in injectable aesthetics. See Jenn’s work on Instagram: @injectorjenn_pac (opens in a new tab).
Also on our team: Antje Dangel, PA-C, Co-Founder and Clinical Director, and Alexa Martinez of our medical team for laser and skin. Meet the whole team
Where Jenn sees guests. Sarasota and Venice.
One number for both clinics: call 941-216-5221 or text 941-337-8461.
Eternal MedSpa Sarasota
4049 Clark Road, Sarasota, FL 34233
Every service Jenn performs is offered here. PRP, IV therapy and laser treatments are Sarasota only.
Eternal MedSpa Venice
555 S. Tamiami Trail, Suite 110, Venice, FL 34285
Antje Dangel, PA-C and Jennifer Demers, PA-C see guests in Venice every week. Book online for current times.
Wrinkle relaxers, dermal fillers, submental (under-the-chin) treatments, wellness injections, and weight loss and hormone consultations.
Serving Sarasota, Venice, Osprey, Nokomis, Siesta Key, Palmer Ranch, Lakewood Ranch, Bradenton, North Port and Englewood.
Questions about Jenn, answered.
Is Jennifer Demers board-certified?
Jennifer Demers, PA-C, is a nationally board-certified physician assistant, licensed in Florida. PA-C means Physician Assistant-Certified.
How long has Jennifer Demers worked in aesthetics?
Jennifer Demers, PA-C, has worked in aesthetics since 2017. Master Injector is a title earned after completing specialized training in injectable aesthetics.
What does Jennifer Demers treat?
Jennifer Demers, PA-C, performs wrinkle relaxer, dermal filler, submental (under-the-chin) and platelet-rich plasma (PRP) treatments, with a focus on natural-looking results and facial balancing. She gives wellness injections, places IVs for IV therapy and performs ablative laser resurfacing. She also leads medical weight loss and hormone restoration consultations.
Does Jennifer Demers see guests in Venice?
Jennifer Demers, PA-C, sees guests every week at Eternal MedSpa Venice, 555 S. Tamiami Trail, Suite 110, and also in Sarasota. Book online for current times. PRP, IV therapy and laser treatments are offered in Sarasota only; her other services are offered at both clinics.
Why is Jenn called “Zen Jenn”?
Jennifer Demers, PA-C, is called “Zen Jenn” for the way she makes guests feel during care: comfortable, informed, unrushed and confident in the plan. She is known for her calm presence and detailed consultations.
Does Jenn Demers have a surgical background?
Jennifer Demers, PA-C, has a clinical background that includes orthopedic trauma surgery. That experience supports her respect for anatomy, precision, tissue handling, healing, guest education and thoughtful injectable planning.
Who supervises Jennifer Demers?
Jennifer Demers, PA-C, works under Medical Director Reuben W. Holland III, MD, FACEP. Dr. Holland is a board-certified emergency physician with more than 35 years of clinical, academic and leadership experience.
Where did Jennifer Demers work before Eternal MedSpa?
Immediately before coming to Eternal MedSpa, Jennifer Demers, PA-C, practiced aesthetics at Elite MedSpa in Sarasota. Before aesthetics, she built a career in orthopedic trauma surgery after moving to Florida.
How do I book with Jennifer Demers?
Jennifer Demers, PA-C, can be booked online. Choose Reserve online, then choose Jenn when you book. You can also call 941-216-5221 or text 941-337-8461. Consultations are complimentary.
Treatment plans depend on your goals, health history and a provider’s assessment. Not everyone is a candidate for every treatment. Individual results vary.
Ask a provider first. No pressure.
Consultations are complimentary. Tell us what you are considering, and a member of our team will reach out soon by call, text or email.
Still deciding? Try the Eternal Plan Builder.
Please give 24 hours' notice to cancel or reschedule. Cancellation policy