Skin Conditioning

Ketoglutaric Acid

INCI: KETOGLUTARIC ACID

Reviewed by Rosie · Last updated 14 Aug 2026

A metabolite that may support skin resilience and cellular renewal

Best For Skin Types

All

Addresses

Cellular renewal, Redness, Sensitivity

Usage Frequency

Daily

What Is Ketoglutaric Acid?

Ketoglutaric acid (alpha-ketoglutaric acid or AKG) is a naturally occurring organic compound derived from the tricarboxylic acid cycle—the central metabolic pathway that generates energy in cells. It functions as a metabolite and cofactor, meaning it supports various enzymatic processes within the body and skin.

In skincare, ketoglutaric acid is primarily used as a deodorant agent. Beyond this functional role, emerging research suggests it may play a role in cellular health and longevity pathways, though its direct application in cosmetic formulations for anti-ageing benefits is still being investigated.

How It Works

Ketoglutaric acid operates as a key metabolite in cellular respiration. It acts as a cofactor for enzymes that modify proteins—particularly those involved in ribosomal function and protein accuracy. By supporting these enzymatic processes, it may help cells maintain proper protein folding and synthesis.

At the deodorant level, ketoglutaric acid works through chemical neutralisation of odour compounds rather than by blocking sweat production, making it a chemical deodorant rather than an antiperspirant.

Clinical Evidence & References

Research in cellular and animal models suggests ketoglutaric acid may play a role in delaying cellular senescence (ageing) and supporting stem cell function. Studies indicate it helps maintain protein quality control within cells and supports regeneration pathways, though most evidence comes from laboratory and animal research rather than human clinical trials.

Evidence for direct anti-ageing or skin-specific benefits in human subjects remains limited. While the metabolic roles are well-characterised in basic research, translation to measurable cosmetic outcomes in living skin requires further investigation.

How to Use

If using a product containing ketoglutaric acid, apply as directed on the product label. As with most active ingredients, consistency matters more than frequency. Allow sufficient time to assess tolerance before combining with other potentially irritating actives.

Safety & Precautions

Ketoglutaric acid is generally well-tolerated in cosmetic concentrations. As with any ingredient, patch testing is advisable for those with sensitive skin or known sensitivities to organic acids.

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