Description

L-Glutamine is an amino acid commonly used in skincare-inspired handmade formulations for its skin-conditioning and moisture-support properties. It is typically included in creams, lotions, serums, and masks designed to support a smooth, hydrated skin feel.

In cosmetic and handmade skincare products, L-Glutamine is mainly used as a water-phase active ingredient rather than a colorant or structural additive. It helps support product positioning focused on skin conditioning and barrier-friendly formulations.

Typical usage rates in skincare formulations:• Leave-on products (creams, lotions, serums): 0.5–2%• Wash-off products (face masks, cleansers): 1–3%• Hydrating toners or mists: 0.5–1%

Method of Use:Add L-Glutamine into the water phase of your formulation and mix until fully dissolved before combining with oils or emulsifiers. It is heat-sensitive, so it is best added during the cool-down phase (below 40°C) to help preserve stability and performance.

For best results, store finished products in a cool, dry place and maintain proper preservation systems in all water-based formulations.