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Feel your best.
Pay 15% less.

Save 15% sitewide through Friday. Physician-reviewed peptides, compounded fresh for every order and shipped 2‑Day Air.

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Ends Friday at 11:59 PM ET.

Prescription Grade ✦ Compounded to Order ✦ Batch Tested

Clinical Peptides,
Compounded to Order.

Physician-reviewed peptide formulas, prepared fresh for every order in a licensed compounding pharmacy and delivered to your door in two days. Made for your protocol, never mass produced.

  • Compounded Fresh
  • Physician Reviewed
  • Ships in 2 Days
  • Free Shipping Over $200

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Compounded to Order
Made fresh for every order
Third-Party Tested
Independently verified for purity
Physician Reviewed
Checked by our MD before it ships
Licensed Pharmacy
U.S. based
2-Day Air Shipping
Ships Monday and Tuesday
Dr. Sasson E. Moulavi, MD
⚕️

The Physician Behind Every Formula

Dr. Sasson E. Moulavi

M.D. — Board-Certified Physician · Harvard-Trained · 30+ Years Clinical Experience

Every product on this site carries my name because I review every formulation before it reaches a patient. With over 30 years of clinical experience in longevity, bariatric, and anti-aging medicine, I designed these protocols to deliver the highest-quality peptides with maximum bioavailability.

I don't believe in anonymous supplement brands or unverified claims. Every formula reflects my evidence-based, patient-first approach to cellular health — prepared in a licensed compounding pharmacy under my direct supervision.

"Great health begins with putting the right nutrients into our bodies."

Harvard Obesity Certification 30+ Years Experience Anti-Aging Medicine Board Certified Licensed Dispensing Physician
The Lavi MD Difference

Made differently.
Tested every batch.

Two proprietary technologies shape how our peptides are prepared and delivered. Then every batch goes to an independent lab before it reaches you.

Stability system

CryoBuffer™

Peptides are fragile in liquid form. CryoBuffer™ is our cold-prepared formulation process, designed to protect peptide structure so your formula stays stable under refrigeration.

  • Prepared and filtered cold, at 0 to 4°C, to slow natural breakdown
  • Precision buffering to hold pH steady, plus trehalose to help reduce aggregation
  • Oxygen-reduced processing and sterile fine filtration before filling
  • Shipped ready to use, so there’s no powder to mix at home

Used in: Pen injectables

How CryoBuffer™ works →
Nasal delivery

Filtraphorix™

Taken by mouth, many peptides are broken down by digestion. Filtraphorix™ delivers them across the nasal lining instead, designed to support absorption without a needle.

  • Absorbed through the nasal lining, a tissue rich in blood vessels
  • Avoids the first pass through the gut and liver that breaks down oral compounds
  • Needle-free and simple to use at home
  • Prepared in a saline base with no preservatives, fillers, or artificial additives

Used in: Nasal sprays

How Filtraphorix™ works →
Batch testing

We check before it ships. Not everyone does.

Many peptides sold online are made overseas in unregulated facilities, and many sellers ship without testing each batch. We screen every batch for fentanyl contamination, so you don’t have to wonder, and we publish the results for your exact lot.

PotencyHow much active ingredient is present (HPLC)
IdentityMatched to a certified reference standard
Bacterial endotoxinsMeasured against accepted limits
Heavy metalsArsenic, cadmium, lead, and mercury
MicrobiologicalBacteria, yeast, mold, and harmful organisms
SterilityFor products that must be sterile
Fentanyl screenEvery batch screened for fentanyl contamination

Tested by an ISO/IEC 17025 accredited third-party lab

Lavi MDTypical online peptide seller
Prepared by✓Licensed compounding pharmacy✕Often sold “for research use only”
Physician review✓Every order✕Rarely
Third-party testing✓Every batch~Inconsistent or none
COA for your exact lot✓Look it up by lot number~Generic sample, if any
Screened for fentanyl contamination✓Every batch✕Rarely tested
Endotoxin & microbial testing✓Included✕Often skipped
Arrives✓Pre-mixed and ready to use~Powder you mix yourself

Comparison reflects common practices among online peptide sellers and is not a statement about any specific company.

Nasal Spray Delivery

Why Nasal Spray
Outperforms Oral

Active compounds absorb directly through the nasal mucosa — bypassing the digestive system and first-pass metabolism entirely. What you take is what reaches your bloodstream. Oral capsules lose a significant portion of potency before the compound ever enters circulation.

✓

Bypasses First-Pass Metabolism

No gut degradation — compounds enter the bloodstream intact at full concentration.

✓

Direct CNS Access

Olfactory pathways allow certain peptides to reach the brain directly — something no oral format can replicate.

✓

Faster Onset

Absorption begins within minutes of administration — significantly faster than capsules or oral drops.

3×
Faster Absorption
99%+
Purity Standard
~Min
Time to Onset
Shop Nasal Sprays →

Subcutaneous Pen Injection

Why Injection Delivers
Maximum Bioavailability

Subcutaneous delivery places the compound directly into tissue adjacent to circulation — no gut degradation, no enzymatic conversion required. The most direct non-IV route available. Precise dose control with every use.

✓

Near 100% Bioavailability

Compounds absorb directly from subcutaneous tissue into circulation — nothing lost to digestion or conversion.

✓

No Conversion Step Required

Unlike oral NMN or NR, subcutaneous NAD+ delivers the molecule directly — no enzymatic conversion, no potency lost.

✓

Precise Dose Control

Dial-a-dose pen injector delivers the exact prescribed volume every time — no guesswork, no inconsistency.

~100%
Bioavailability
0×
Conversion Steps
GMP
Certified Facility
Shop Pen Injectors →
Verified & Trusted

Memberships & Affiliations

We hold ourselves to the standards set by the bodies advancing peptide science, so you can have full confidence in every product you receive.

American Peptide Association American Peptide Association

American Peptide Association

The leading industry body advancing the science, safety, and standards of peptide research. Our membership reflects our commitment to purity, transparency, and responsible sourcing.

Official Member
Seeds Scientific Research and Performance (SSRP) Institute SSRP Institute

Seeds Scientific Research and Performance Institute

A physician led institute advancing the clinical standards of peptide therapy and cellular medicine. Our membership reflects our commitment to evidence based, physician guided care.

Official Member
Physician Led Evidence Based Protocols Quality Verified Trusted Sourcing
Verified Customers

Real People. Real Results.

✔ Verified
★★★★★

"Absolute game changer. Two weeks in and my focus is sharper than it's been in years. The nasal delivery is fast — I notice it within 20 minutes."

Jason M.
Verified · Semax + Selank Nasal Spray · 3 months
✔ Verified
★★★★★

"I was skeptical about the injectable but the doctor review process was smooth and professional. NAD+ results are real — energy is through the roof."

Linda R.
Verified · NAD+ Pen Injector · 6 months
✔ Verified
★★★★★

"Sleep has completely changed. Deep and consistent. DSIP spray is the combination I never knew I needed."

Tom B.
Verified · DSIP Nasal Spray · Ongoing