In the world of Longevity and Aesthetic Medicine, Nicotinamide adenine dinucleotide (NAD+) and Peptides are often mentioned together, but they are not the same. Think of them as complementary tools with different jobs. NAD+ is the gas fueling cellular energy and repair, while Peptides are the GPS directing the body where to go and what to do. They work together in synergy to support how the body functions and looks.
NAD+: The Gas
NAD+ is an enzyme found in every cell of the body. Its primary role is energy production, specifically driving mitochondrial function and ATP generation. As we age, NAD+ levels naturally decline, which is associated with fatigue, longer recovery, cognitive decline, and reduced cellular repair.
From a longevity perspective, NAD+ supports metabolic health, neurological function, DNA repair, and optimizes overall cellular resilience. From an aesthetic perspective, it supports improved cellular energy, which, in turn, can enhance skin and hair quality, promote better healing, and enhance vitality. This molecule can produce different outcomes, depending on the goal and protocol. As a naturally occurring compound in the body, NAD+ is not FDA-approved as a drug. Its role as a naturally occurring compound is widely used in clinical practice due to a growing body of positive clinical outcomes, safety data, and long-standing research. IV NAD+ is more effectively absorbed than oral NAD+ because it bypasses the digestive system and first-pass metabolism in the liver, allowing NAD+ to enter the bloodstream directly and reach cells at higher and more predictable levels. Oral NAD+ must be broken down in the gut and converted into precursor molecules before the body can use it, which significantly limits how much ultimately becomes available at the cellular level.
Peptides: The GPS
Peptides are short chains of amino acids that act as signaling molecules. Instead of fueling the system, they tell the body where to go to stimulate healing, regulate metabolism, reduce inflammation, trigger tissue repair, etc. Each peptide has a specific destination. From a longevity perspective, peptides support foundational processes such as cellular repair, metabolic efficiency,
inflammation modulation, gut integrity and musculoskeletal resilience, helping the body function better over time, and age more gracefully. From an aesthetic perspective, peptides act more locally and visibly, supporting collagen production, skin and hair quality, tissue healing, fat metabolism, and recovery after aesthetic procedures.
Researchers have found more than 7,000 unique peptides. Approximately 80 to 90 FDA-approved “peptide-based drugs” are available, whereas many natural peptide structures are currently being utilized within regenerative, longevity, and aesthetic medicine.
Some of the most widely used peptides in Aesthetic and Longevity Medicine are
• GLP-1’s
• GHK-Cu (Copper)
• TB- 500
• BPC-157
Why do they work better together? NAD+ improves the cell’s capacity to respond while peptides direct the response. Using the “Gas and GPS” analogy, think… fuel without direction is inefficient, while direction without fuel is limited. Together, they allow for more precise, effective outcomes, whether the goal is longevity or aesthetics.
Patient safety is paramount! Compounded peptides and NAD+ must be sourced through licensed, compliant pharmacies. Following FDA guidelines, adhering to rigorous quality control, conducting purity and sterility testing, and maintaining proper handling and storage ensure consistency, reliability, and patient trust. Always consult a reputable licensed provider to determine if you are a candidate for treatment. A thorough health history should be obtained, and any pre-treatment screening should be performed if indicated based on health history.
Schedule your consult with Lisa, NP, at Glo Medical Aesthetics by calling 901.552.3461 or by visiting Glomedmemphis.com.
Lisa Street, NP, at 53, brings over 32 years of nursing experience, with a background in ER/ICU/Nursing Education and 20 years in Medical Aesthetics. Passionate about Functional Medicine, she emphasizes mind-body balance and intentional self-care. Lisa believes in living the principles she teaches and loves partnering with patients on their journey to optimal health via what she calls “ Lifestyle Medicine.”
By Lisa Street, NP
