Phenoxyethyl PCA

Phenoxyethyl PCA is a humectant derived from pyroglutamic acid (PCA), an amino acid naturally present in skin. It functions as a moisture-binding agent, drawing water from the environment and deeper skin layers into the outer epidermis.In formulations, it works alongside other hydrating ingredients to support skin's natural moisturisation process. It is particularly valued in products designed to address dryness and dehydration without adding heaviness or occlusion.

Phenoxyethyl PCA is a humectant, meaning it has a chemical structure that allows it to attract water molecules. When applied to skin, it draws moisture from the air and from lower layers of the epidermis, helping to plump the outer skin layer and improve hydration.Because it is derived from naturally occurring compounds in skin, it integrates well into the skin's own hydration ecosystem, working in harmony with the skin barrier rather than disrupting it.

Phenoxyethyl PCA is typically found in serums, lightweight moisturisers, and hydrating essences. Apply to clean, slightly damp skin for optimal effect, as this helps the humectant draw moisture into the skin. Layer it under an occlusive moisturiser or facial oil if your skin is very dry, to seal in the hydration it provides. It can be used daily, morning and evening.

Phenoxyethyl PCA is generally well-tolerated across skin types and has a low sensitising potential. No major safety concerns are documented for topical use in cosmetics.