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Moumoujus

METHYL AMINOLEVULINATE HCL.

Avoid CAS 79416-27-6 / ANTIMICROBIAL, ANTIOXIDANT, SKIN PROTECTING

Methyl Aminolevulinate HCl is a potent photosensitizing prodrug primarily employed in photodynamic therapy (PDT). It targets and selectively eliminates abnormal skin cells, serving as a critical agent in the medical management of various precancerous and cancerous skin lesions. Furthermore, it demonstrates efficacy in addressing photoaged skin and reducing inflammatory acne lesions.

Summary

Targeted Cell Destruction Anti-Actinic Keratosis Anti-Basal Cell Carcinoma Anti-Bowen's Disease Skin Rejuvenation Anti-Acne

Science

Mechanism of Action

This compound acts as a prodrug that, upon topical application, is preferentially absorbed by dysfunctional skin cells. Within these cells, it undergoes intracellular conversion into photoactive porphyrins, predominantly protoporphyrin IX (PpIX). Subsequent exposure to specific red light wavelengths (570–670 nm) activates the accumulated porphyrins, initiating a photodynamic reaction. This process generates highly reactive oxygen species, such as singlet oxygen, superoxide, and hydroxyl radicals, which inflict free-radical-mediated DNA damage and localized cytotoxicity, thereby destroying the targeted abnormal cells.

Research

Clinical Evidence

High confidence
Effective range 8–16.8%
Optimal

16.8%

Key findings

  1. 01 Achieved complete response rates for actinic keratosis (AK) between 69% and 93% at 3 months, for superficial basal cell carcinoma (sBCC) between 85% and 93% at 3 months, and for Bowen's disease (BD) at 93% at 3 months and 68% at 2 years.
  2. 02 Utilized in clinical trials for actinic keratosis, involving two treatment sessions one week apart with approximately 3 hours of occluded application followed by 37 J/cm² red light illumination.
  3. 03 Improvements observed in aesthetic parameters of photoaged skin, including fine lines, skin roughness, and mottled pigmentation, alongside a reduction in inflammatory acne lesions.

Transparency

Dusting Analysis

Not commonly dusted

Methyl Aminolevulinate HCl is an FDA-approved prescription drug designated for medical photodynamic therapy, requiring strict medical oversight and light activation. It is not an ingredient utilized in over-the-counter cosmetic formulations, rendering the concept of 'dusting' inapplicable.

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Cream formulations containing Methyl Aminolevulinate HCl must be stored refrigerated (below 8°C, ideally 0-4°C) and protected from light and extreme cold. Once the tube is opened, the product should be discarded within one week to ensure potency and stability.

Synergies

  • Activation by specific red light wavelengths (570–670 nm) is essential for its therapeutic mechanism.

Conflicts

  • Porphyrins (due to potential for allergic reactions)
  • Peanut oil (due to potential for allergic reactions)
  • Almond oil (due to potential for allergic reactions)
  • Other photosensitizing agents (may intensify phototoxic reactions)
  • Vinyl and latex gloves (inadequate protection during application, nitrile gloves recommended)

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
16.8%
Sensitization risk High

Methyl Aminolevulinate HCl is an FDA-approved prescription drug necessitating stringent medical supervision. Its application induces significant cutaneous photosensitivity, mandating rigorous avoidance of direct sunlight and intense indoor light post-treatment. Common adverse effects include localized irritation, erythema, burning, stinging, swelling, blistering, scabbing, and peeling of the skin. It carries a high risk for contact sensitization. This ingredient is strictly contraindicated in individuals with known cutaneous photosensitivity, allergies to porphyrins, or sensitivities to any component, including peanut and almond oils. It is classified as Pregnancy Category C.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy High
Comedogenicity Unknown

Our Assessment

Verdict

Avoid

Methyl Aminolevulinate HCl is an indispensable, prescription-only photosensitizing agent for severe dermatological conditions, but its high irritancy, potent photosensitizing effects, and medical application requirements deem it entirely unsuitable for general cosmetic product formulation.

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