Soluble Elastin
INCI: SOLUBLE ELASTIN
Reviewed by Daisy · Last updated 2 Jun 2026
A protein-based humectant derived from elastin that supports skin hydration and elasticity
Best For Skin Types
All, Dry, Mature, Sensitive
Addresses
Usage Frequency
Daily
What Is Soluble Elastin?
Soluble elastin is a water-soluble protein derived from elastin, a key structural component of skin's extracellular matrix. It is typically extracted from animal sources (such as pig aorta or poultry by-products) using chemical processing methods that break down the protein into smaller, water-soluble fragments. These fragments retain many of elastin's functional properties whilst dissolving readily in skincare formulations.
In cosmetic products, soluble elastin functions as a humectant and skin conditioning agent. Its high content of hydrophobic amino acids allows it to form a film on the skin's surface whilst simultaneously drawing moisture into the outer layers, supporting both hydration and the skin's natural elasticity.
How It Works
Soluble elastin works through two complementary mechanisms. As a humectant, its hydrophilic (water-loving) structure draws moisture from the environment and deeper skin layers into the epidermis. Simultaneously, the protein deposits a thin, occlusive film on the skin's surface, which helps seal in that moisture and reduce water loss.
The protein's amino acid composition—particularly its high proportion of glycine, alanine and valine—gives it conditioning properties that smooth and soften the skin. Additionally, preliminary research indicates that elastin may interact with enzymes involved in melanin synthesis, though the clinical significance of this effect requires further investigation.
Clinical Evidence & References
Research into water-soluble elastin as a cosmetic ingredient remains limited. Published studies suggest that elastin preparations demonstrate meaningful moisturising effects comparable to other protein-based humectants, and early in vitro data indicate potential tyrosinase inhibition (relevant to hyperpigmentation concerns). However, most evidence comes from small-scale or laboratory studies rather than large-scale human trials.
Safety assessments of elastin derived from various sources (poultry, pig aorta) have generally shown it to be well-tolerated with low toxicity risk. Broader clinical confirmation of its skin benefits in real-world formulations would strengthen current understanding of its efficacy.
Published Research
How to Use
Soluble elastin is typically found in serums, hydrating essences and moisturisers. For best results, apply to damp skin—this allows the humectant properties to work most effectively by drawing moisture into the skin. Layer it under an occlusive moisturiser or facial oil to seal in hydration, particularly if you have dry or mature skin. It can be used daily as part of your morning and evening routine.
Safety & Precautions
Frequently Asked Questions
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