Best For Skin Types
All, Mature, Dry
Addresses
Usage Frequency
Daily
What Is Tetrapeptide-44?
Tetrapeptide-44 is a short-chain peptide — a fragment of amino acids — used in skincare formulations primarily for its skin conditioning properties. Peptides are considered to be signalling molecules that may communicate with skin cells to support various functions related to skin structure and appearance.
In cosmetic products, tetrapeptide-44 is typically included to help maintain skin condition and support the skin's natural barrier function. Like other peptides, it works at a molecular level to interact with the skin's outer layers.
How It Works
Tetrapeptide-44 functions as a skin conditioning agent by interacting with the skin's outer layers. Peptides are believed to signal to skin cells, potentially encouraging them to maintain or support structural proteins and moisture levels. This supports the overall condition and resilience of the skin.
The skin naturally loses structural proteins and becomes thinner with age, which can compromise both appearance and barrier function. By providing peptide signals, this ingredient may help reinforce the skin's natural maintenance mechanisms.
Clinical Evidence & References
Research into peptides in skincare suggests they play a role in supporting skin structure and barrier function. Studies indicate that the skin's loss of structural proteins — particularly collagen in the dermis — is a key feature of ageing skin, alongside thinning of both the epidermis and dermis. Peptides are thought to support the skin's ability to maintain these structures.
However, specific clinical evidence for tetrapeptide-44 in particular is limited in published literature. Most claims rest on the broader understanding of how peptides function as signalling molecules. Further research would help clarify the ingredient's specific efficacy at typical cosmetic concentrations.
How to Use
Tetrapeptide-44 is most effective when used consistently as part of a daily skincare routine. It works well in serums, moisturisers, and other leave-on products where it can remain in contact with the skin. For best results, layer it under a moisturiser or use it in a formulation that also supports barrier health with complementary ingredients.
Safety & Precautions
Frequently Asked Questions
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