ANCIENT WISDOM. MODERN SCIENCE.
240
SUJECTS TESTED
EUROFINS CRL 2025
98.6%
NON- IRRITANT VIABILITY
OECD 439 STANDARD
12M
STABILITY CONFIRMED
12W ACCELERATED TESTING
0
ADVERSE EVENTS
PATCH TEST STUDY
Hirudin — Nature's Master Anticoagulant
Derived from medicinal leeches (Hirudo medicinalis) with 2,000 years of documented therapeutic use. 2% active concentration — independently verified safe for all Fitzpatrick skin types I–VI, including sensitive skin.
Precision Formulated
Two concentrations. One purpose — visibly calmer, clearer, more radiant skin. Every batch independently tested for purity, stability, and safety.
OUR COLLECTION
Not a Claim.
A Proven Result.
THE EVIDENCE
Repeated Insult Patch Test
Eurofins | CRL, Inc. · 240 subjects · ICH GCP
0 events
Skin Irritation Test — OECD 439
LifeNet Health LifeSciences · MatTek EpiDerm™
98.6%
12-Month Accelerated Cosmetic Stability Study
Eurofins | CRL, Inc. · Accelerated Aging
Stable
"
Under the conditions of this study, Hirudin Topical Serum did not demonstrate a potential for eliciting dermal irritation or inducing sensitization.
WINSTON MOY, MD · DIPLOMATE, AMERICAN BOARD OF DERMATOLOGY EUROFINS | CRL, INC. · STUDY ECRLNJ2025-0577
"Mean tissue viability of 98.6% — classified as No Category, Non-Irritant to Skin under the GHS standard."
— LifeNet Health LifeSciences, OECD 439 Study LNH-S-095-003
INDEPENDENTLY TESTED BY EUROFINS CRL · PISCATAWAY, NJ LIFENET HEALTH LIFESCIENCES · KALAMAZOO, MI
THREE CLINICAL REPORTS AVAILABLE FOR DOWNLOAD