For Research Use Only · COA-verified every batch
Track order
Leuphasyl — Pentapeptide-18 Enkephalin Analog
Leuphasyl — Pentapeptide-18 Enkephalin Analog
drag to compare
Aesthetics

Leuphasyl

Pentapeptide-18 Enkephalin Analog

Price
$65.00
Dosage
200 mg
Format
topical
COA on this batch
BTC · ETH · USDT · USDC
Discreet shipping
Holographic seal
About

Leuphasyl (Pentapeptide-18) is a synthetic enkephalin analog developed for cosmetic formulation research. It has been studied in preclinical models as a topical synergist to Argireline, with mechanism work examining its effect on presynaptic muscle contraction signaling pathways distinct from the SNARE-targeting class. For laboratory research use only.

Mechanism

Agonizes enkephalin-class opioid receptors on motor neurons, reducing cAMP and limiting calcium influx, which attenuates acetylcholine release at the neuromuscular junction.

For Research Use Only. Sold for in vitro laboratory research. Not for human or veterinary consumption. By purchasing, you confirm you are 21+ and a qualified research professional.

Molecular structure
Sequence
YTyr · TyrosineGGly · GlycineGGly · GlycineFPhe · PhenylalanineLLeu · Leucine
HydrophobicPolarBasic (+)Acidic (−)Aromatic

Pentapeptide-18 — synthetic enkephalin analog (Tyr-Gly-Gly-Phe-Leu).

Molecular weight
555.6 g/mol
LeuphasylDrag · Scroll to zoom
Specifications
Product
Leuphasyl
Subtitle
Pentapeptide-18 Enkephalin Analog
Dosage
200 mg
Form
Topical
Category
Aesthetics & Skin
Sku
leuphasyl-topical-200mg
Purity target
≥99% (HPLC-MS)
Storage
2-8°C lyophilized
Shelf life
24+ months refrigerated
Verification

Every batch of Leuphasyl ships with an independently conducted Certificate of Analysis by Janoshik Analytical or Bioviridian. The COA includes HPLC-MS chromatogram, mass spec confirmation, endotoxin levels, and heavy metals screening.

COA available per batch

Batch number is printed on the vial label and included in your order confirmation email. Look it up at pepidyn.com/coa.