The Lab

Deep-dive research breakdowns, compound profiles, and wellness guides — published since late 2025. Sol explains the science so you can make informed decisions about your health.

Featured Research

Lean Body14 min read

CagriSema: Why the Amylin + GLP-1 Combination Is the Next Frontier in Metabolic Medicine

How combining amylin and GLP-1 pathways produces weight loss beyond what either achieves alone — and what the REDEFINE trials mean for metabolic science.

Sol Rivera·April 6, 2026
Lean Body16 min read

Semaglutide: The GLP-1 Agonist That Changed Everything

Semaglutide research explained — STEP trial data, 16.9% weight loss, cardiovascular benefits, side effects, and how it compares to newer GLP-1 peptides.

Sol Rivera·April 4, 2026
The GLP-1 Revolution: What the Science Actually Shows — research article by Sol Rivera
Lean Body14 min read

The GLP-1 Revolution: What the Science Actually Shows

Tirzepatide, Retatrutide, and the new generation of metabolic peptides — how they work, what the trials found, and why this changes everything.

Sol Rivera·March 14, 2026
Recharge15 min read

NAD+: The Complete Guide to the Molecule at the Center of Aging Research

A comprehensive look at NAD+ biology — sirtuins, PARPs, CD38, delivery routes, the precursor debate, and an honest assessment of the human evidence.

Sol Rivera·February 11, 2026
Lean Body15 min read

Retatrutide: The Triple Agonist That May Redefine Obesity Treatment

A comprehensive look at the first triple-receptor agonist in obesity research — how glucagon activation changes everything and what Phase 2 data reveals.

Sol Rivera·February 7, 2026
Lean Body16 min read

Tirzepatide: Mounjaro, Zepbound, and the Dual Agonist Data

Everything the research shows about tirzepatide — SURMOUNT trial data, the GIP receptor debate, cardiovascular outcomes, and how it compares to semaglutide.

Sol Rivera·February 3, 2026
Glow16 min read

GHK-Cu: 4,000 Genes, Copper Biology, and Why This Peptide Keeps Surprising Researchers

GHK-Cu complete guide — from Loren Pickart's 1973 discovery to the 4,000-gene activation data. Collagen, wound healing, and hair growth research.

Sol Rivera·January 30, 2026
Recover18 min read

BPC-157: The Complete Guide to the Body Protection Compound

Everything researchers know about BPC-157 — mechanisms, the Zagreb studies, the Wolverine Stack, FDA reclassification, and where the science stands in 2026.

Sol Rivera·January 20, 2026

All Articles

Lean Body14 min read

CagriSema: Why the Amylin + GLP-1 Combination Is the Next Frontier in Metabolic Medicine

How combining amylin and GLP-1 pathways produces weight loss beyond what either achieves alone — and what the REDEFINE trials mean for metabolic science.

Sol Rivera·April 6, 2026
Lean Body16 min read

Semaglutide: The GLP-1 Agonist That Changed Everything

Semaglutide research explained — STEP trial data, 16.9% weight loss, cardiovascular benefits, side effects, and how it compares to newer GLP-1 peptides.

Sol Rivera·April 4, 2026
Recharge12 min read

SS-31: Targeting the Mitochondrial Membrane — A New Approach to Cellular Aging

How a mitochondria-targeted peptide stabilizes cardiolipin, protects electron transport, and opens a new front in longevity research.

Sol Rivera·March 31, 2026
Lean Body11 min read

5-Amino-1MQ: A Completely Different Approach to Fat Metabolism

How inhibiting the NNMT enzyme shifts fat cells from storage mode to energy expenditure — without suppressing appetite or requiring injection.

Sol Rivera·March 27, 2026
Vitality12 min read

PT-141: What the Research Shows About Melanocortin-Based Sexual Health

PT-141 (bremelanotide) works through the brain, not blood flow — a deep dive into the melanocortin receptor mechanism, clinical data, and what makes it unique.

Sol Rivera·March 23, 2026
Lean Body11 min read

AOD-9604: The HGH Fragment Approach to Fat Loss

AOD-9604 mimics the fat-burning fragment of growth hormone without the side effects — what the Australian trials showed and how it compares to GLP-1 agonists.

Sol Rivera·March 19, 2026
Renew13 min read

Epitalon: Telomerase Activation and the Science of Biological Aging

Epitalon activates telomerase to maintain telomere length — what decades of research show, where the gaps are, and why longevity researchers watch.

Sol Rivera·March 15, 2026
The GLP-1 Revolution: What the Science Actually Shows — research article by Sol Rivera
Lean Body14 min read

The GLP-1 Revolution: What the Science Actually Shows

Tirzepatide, Retatrutide, and the new generation of metabolic peptides — how they work, what the trials found, and why this changes everything.

Sol Rivera·March 14, 2026
Recharge12 min read

MOTS-c: The Mitochondrial Peptide Rewriting Metabolic Science

A mitochondrial-derived peptide that mimics exercise at the cellular level — the research behind MOTS-c, how it works, and what it means for metabolic health.

Sol Rivera·March 11, 2026
Mind12 min read

Selank: The Anxiolytic Peptide That Doesn't Sedate

How a synthetic tufsin fragment modulates GABA and BDNF to reduce anxiety without the sedation, tolerance, or dependence issues of traditional anxiolytics.

Sol Rivera·March 7, 2026
Mind13 min read

Semax: BDNF, Neuroplasticity, and the Science of Cognitive Enhancement

An ACTH fragment approved in Russia for stroke recovery is gaining attention as a nootropic. Here is what the research shows about BDNF, NGF, and cognition.

Sol Rivera·March 3, 2026
Amplify11 min read

CJC-1295 Without DAC: Why Pulsatile GH Release Matters

Modified GRF(1-29) preserves natural growth hormone pulsatility instead of sustained elevation. Here is why that distinction matters for researchers.

Sol Rivera·February 27, 2026
Vitality13 min read

Melanotan II: Melanin, Libido, and an Honest Look at the Risk Profile

Melanotan II activates multiple melanocortin receptors with effects on skin pigmentation, appetite, and libido. Here is a balanced look at the evidence.

Sol Rivera·February 23, 2026
Vitality14 min read

HCG: Fertility Preservation, Testosterone Support, and What the Evidence Shows

HCG mimics luteinizing hormone to maintain testicular function during TRT and support fertility. A research-grounded guide to the evidence and applications.

Sol Rivera·February 19, 2026
Recharge15 min read

NAD+: The Complete Guide to the Molecule at the Center of Aging Research

A comprehensive look at NAD+ biology — sirtuins, PARPs, CD38, delivery routes, the precursor debate, and an honest assessment of the human evidence.

Sol Rivera·February 11, 2026
Lean Body15 min read

Retatrutide: The Triple Agonist That May Redefine Obesity Treatment

A comprehensive look at the first triple-receptor agonist in obesity research — how glucagon activation changes everything and what Phase 2 data reveals.

Sol Rivera·February 7, 2026
Lean Body16 min read

Tirzepatide: Mounjaro, Zepbound, and the Dual Agonist Data

Everything the research shows about tirzepatide — SURMOUNT trial data, the GIP receptor debate, cardiovascular outcomes, and how it compares to semaglutide.

Sol Rivera·February 3, 2026
Glow16 min read

GHK-Cu: 4,000 Genes, Copper Biology, and Why This Peptide Keeps Surprising Researchers

GHK-Cu complete guide — from Loren Pickart's 1973 discovery to the 4,000-gene activation data. Collagen, wound healing, and hair growth research.

Sol Rivera·January 30, 2026
Recover14 min read

TB-500: Cell Migration, Tissue Repair, and the Science of Thymosin Beta-4

The complete guide to TB-500 — how Thymosin Beta-4 drives cell migration through actin biology, and what the research says about tissue repair.

Sol Rivera·January 25, 2026
Recover18 min read

BPC-157: The Complete Guide to the Body Protection Compound

Everything researchers know about BPC-157 — mechanisms, the Zagreb studies, the Wolverine Stack, FDA reclassification, and where the science stands in 2026.

Sol Rivera·January 20, 2026
GHK-CU: The Copper Peptide Your Skin Already Knows — research article by Sol Rivera
Glow9 min read

GHK-CU: The Copper Peptide Your Skin Already Knows

How a naturally occurring tripeptide activates 4,000+ genes for tissue repair, and why the skin science community is paying attention.

Sol Rivera·January 10, 2026
Glutathione: The Antioxidant Your Cells Actually Make — research article by Sol Rivera
Recharge8 min read

Glutathione: The Antioxidant Your Cells Actually Make

Glutathione is the body's primary antioxidant — produced in every cell, critical for detoxification. Why it declines with age and what the research shows.

Sol Rivera·January 3, 2026
Understanding Your Growth Hormone System — research article by Sol Rivera
Renew11 min read

Understanding Your Growth Hormone System

How the growth hormone axis works — pituitary signaling, GHRH, ghrelin receptors, and IGF-1 explained. Why GH declines 14% per decade and what that means.

Sol Rivera·November 22, 2025
Sermorelin vs. HGH: What the Research Actually Compares — research article by Sol Rivera
Renew10 min read

Sermorelin vs. HGH: What the Research Actually Compares

The pulsatile physiology of Sermorelin against direct HGH replacement — clinical differences, feedback loops, and what the evidence says about each approach.

Sol Rivera·November 5, 2025
The Science of Peptide Stacking — research article by Sol Rivera
Amplify8 min read

The Science of Peptide Stacking

Why combining compounds like CJC-1295 + Ipamorelin produces synergistic effects, and what the research says about multi-peptide protocols.

Sol Rivera·October 15, 2025
Collagen, Elastin, and Why Your Skin Forgets How to Repair — research article by Sol Rivera
Glow9 min read

Collagen, Elastin, and Why Your Skin Forgets How to Repair

The biology of skin aging: why collagen and elastin decline after 25, what fibroblast slowdown means, and what the research shows about reversing it.

Sol Rivera·September 18, 2025
What Are Peptides? A Science-First Primer — research article by Sol Rivera
Renew7 min read

What Are Peptides? A Science-First Primer

Amino acid chains, receptor signaling, and why peptides are among the most studied compound classes in modern biochemistry — explained clearly.

Sol Rivera·August 12, 2025