welcome to
Longevity Lab & Aesthetics
At Longevity Lab & Aesthetics by Nurse Marni, we combine the science of regenerative medicine with the art of aesthetic refinement to help you look and feel your best inside and out.
Our practice delivers a personalized, science-driven approach to skin health, facial harmony, hormone optimization, and metabolic wellness. Every treatment is performed with precision and safety in mind, using advanced techniques such as ultrasound-guided vascular mapping to minimize risks and enhance outcomes.
Whether your goal is graceful aging, renewed vitality, or radiant skin confidence, we provide expert guidance and compassionate care to achieve sustainable, transformative results tailored uniquely to you.
Meet the Founder
Nurse Marni FNP-C
Founder & CEO, Longevity Lab & Aesthetics
Marni Smith is a board-certified Family Nurse Practitioner licensed in Massachusetts and Florida, with advanced training across multiple medical specialties, including Family Medicine, Dermatology, Gastrointestinal Health, Endocrinology, and Hormone Optimization. She takes an integrative, personalized approach to patient care, combining science-based methods with a focus on overall wellness.
Marni specializes in helping patients achieve optimal health through evidence-based treatments, including peptides, amino acids, regenerative therapies, and customized nutrition and lifestyle programs. She completed a fellowship in Anti-Aging and Metabolic Medicine (FAAMM) through the American Academy of Anti-Aging Medicine (A4M) and is certified by the American Board of Anti-Aging Health Practitioners (ABAAHP).
Dedicated to restoring balance and promoting longevity at the cellular level, Marni combines clinical expertise with compassionate care, empowering patients to feel vibrant, confident, and healthy throughout their lives.
Let’s connect
It can be challenging to start something new, but we are here to assist you. Feel free to contact us if you would like to learn more about a service, discuss treatment options, or get to know us better.
No pressure, no pushy sales, just kind, thoughtful guidance from a team that genuinely cares.