Best For Skin Types
Dry, Sensitive, All
Addresses
Usage Frequency
Daily
What Is Mevalonolactone?
Mevalonolactone is a compound produced by the fermentation of Saccharomycopsis fibuligera, a microorganism used in traditional food production. In skincare, it functions as a humectant—a molecule that helps the skin retain moisture by drawing water into the epidermis.
The ingredient works by influencing the skin's lipid metabolism, particularly the transport of fatty acids within keratinocytes. This mechanism suggests a role in supporting the skin's barrier function beyond simple moisture binding.
How It Works
Mevalonolactone appears to work by promoting the expression of ABCA12, a transporter protein responsible for moving fatty acids into lamellar granules—the cellular structures that release lipids to form the skin barrier. By facilitating this lipid transport system, the ingredient may help the skin maintain its natural moisturising capacity and protective function.
As a humectant, mevalonolactone also draws moisture into the outer layers of skin, providing immediate hydration alongside its longer-term barrier-support mechanism.
Clinical Evidence & References
Research suggests mevalonolactone can accelerate lipid transport within epidermal cells and increase fatty acid availability in cultured keratinocytes and three-dimensional skin models. These findings indicate potential benefit for dry or compromised skin, though human clinical trials are limited.
Laboratory studies also indicate the ingredient may inhibit biofilm formation by commensal bacteria on the skin surface, though the significance of this for everyday skincare remains unclear. Further research in human subjects would help clarify its practical benefits.
Published Research
How to Use
Mevalonolactone is typically found in serums and moisturisers designed to support barrier function. It works well alongside other hydrating and barrier-supporting ingredients. Use it daily as part of your routine; there is no need to introduce it gradually for most skin types.
Safety & Precautions
Frequently Asked Questions
From the Clinic
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