The ingredient, explained

Glutamine

A primary study examines this ingredient in the specified preparation and setting.

AntistaticHair conditioningSkin conditioning

Explore connections

Ingredient guide

What it is and what it does

-S--2‚5-Diamino-5-oxopentanoic acid

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Antistatic: Reduces the build-up of static electrical charge on surfaces.
Hair conditioning: Improves cosmetic hair properties such as softness, shine or combability.
Skin conditioning: A broad cosmetic role for maintaining skin condition. It does not identify a particular clinical benefit.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Human oral research

Four-week nutritional mixture improved self-reported skin-condition scores alongside reduced visceral adipose tissue.

What this does not tell us

Oral mixture in sedentary overweight/obese postmenopausal women. Skin endpoints self-reported and secondary; no isolated glutamine or topical effect. Sample size not in abstract.

Sources for this summary. PubMed 33802917 ↗

Research review checked Oct 1, 2026

Bounded review of local candidates, exact-name indexed primary journal/PubMed safety and topical searches; not a systematic review.

Ingredient research is not proof that a product containing this ingredient works.