Physician-Authored Content

The Science

A physician-authored reference for the compounds Dr. Garcia evaluates and may prescribe as part of her programs. Written for patients who want to understand the biology behind their care.

Dr. Nicole Garcia, MD  ·  Medical Director, La Vitality MD  ·  California-Licensed Physician
Cellular Energy & Longevity
01
NAD+
The Science Behind Cellular Energy
A coenzyme your cells depend on for energy production, DNA repair, and mitochondrial function – and one that declines significantly with age.
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Metabolic Reset
02
Semaglutide
What Patients Should Know
A GLP-1 receptor agonist that amplifies the body's natural satiety signals – one of the most extensively studied medications in metabolic health today.
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Metabolic Reset
03
Tirzepatide
Dual-Receptor GLP-1 Therapy
A dual GIP/GLP-1 receptor agonist that activates two complementary metabolic pathways – producing outcomes that exceed single-receptor therapies in clinical trials.
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Recovery & Repair
04
BPC-157
Recovery Research & Clinical Context
A peptide derived from a gastric protective protein, studied extensively in preclinical models for tissue repair, vascular health, and the gut-brain connection.
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Recovery & Repair
05
TB-500
Thymosin Beta-4 Fragment
A synthetic peptide derived from a protein found in virtually every cell – studied for its role in tissue repair, inflammation regulation, and cellular regeneration.
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Strength & Performance
06
MOTS-C
Mitochondrial Performance Science
A peptide encoded directly in mitochondrial DNA – a mitokine that communicates between your cells' energy centers and the rest of your body.
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Strength & Performance
07
CJC-1295 / Ipamorelin
Growth Hormone Peptide Combination
Two complementary peptides that work on the same physiological pathway from different angles – producing a more balanced growth hormone release than either alone.
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Strength & Performance
08
Tesamorelin / Ipamorelin
Growth Hormone Axis Optimization
A unique combination pairing an FDA-approved GHRH analogue with a selective growth hormone secretagogue – one of the more clinically supported approaches in longevity medicine.
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Recovery & Repair
09
DSIP
The Sleep Peptide – Research Overview
Delta Sleep-Inducing Peptide – a naturally occurring neuropeptide studied for its role in sleep architecture, stress response, and neuroendocrine function.
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Skin & Hair
10
GHK-Cu
Copper Peptide & Skin Vitality
A naturally occurring copper-binding peptide with one of the most extensive research profiles of any cosmetic compound – its science extends well beyond surface-level skin improvement.
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Skin & Hair
11
The Glow Stack
Physician Protocol for Skin Wellness
A physician-curated combination of peptides selected for their complementary effects on collagen synthesis, cellular protection, tissue remodeling, and inflammatory balance.
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