Tetrapeptide-26

Tetrapeptide-26 is a short-chain peptide—a fragment composed of four amino acids linked together. Peptides are naturally occurring building blocks found throughout the body, and in skincare formulations, they serve as skin conditioning agents that help maintain skin texture and resilience.This ingredient works at the surface level to support skin's appearance and feel, functioning as a humectant and conditioning agent that can help improve the overall softness and smoothness of the skin.

Tetrapeptide-26 conditions the skin by forming a lightweight film on the surface that helps lock in moisture and improve skin feel. Peptides are recognised by the skin as amino acid structures similar to those in naturally occurring proteins like collagen, which may encourage the skin to maintain its own structural integrity.The ingredient is small enough to interact meaningfully with the outer layers of skin, where it can hydrate and soften whilst supporting the skin's natural barrier function.

Tetrapeptide-26 is typically used in serums, moisturisers, and essences. It works well alongside other peptides and hydrating ingredients. For best results, apply to clean skin and allow the product to absorb before layering other treatments. It can be used daily as part of both morning and evening routines.

Tetrapeptide-26 is generally well-tolerated and suitable for most skin types. As with any new ingredient, patch testing is recommended if you have particularly sensitive skin.