Skin Conditioning

Gold Thioethylamino Hyaluronic Acid

INCI: GOLD THIOETHYLAMINO HYALURONIC ACID

Reviewed by Daisy · Last updated 2 Jun 2026

Also known as: Gold Thioethylamino Hyaluronic Acid

A modified hyaluronic acid designed to enhance skin hydration and conditioning

Best For Skin Types

All, Dry, Mature, Combination

Addresses

Dryness, Hydration, Fine lines

Usage Frequency

Daily

What Is Gold Thioethylamino Hyaluronic Acid?

Gold thioethylamino hyaluronic acid is a derivative of hyaluronic acid, a humectant naturally found in skin that draws moisture from the environment into the outer layers. This version has been chemically modified with a thioethylamino group, which alters how the molecule behaves on and within the skin compared to standard hyaluronic acid.

The ingredient functions primarily as a skin conditioning agent, working to improve the feel and hydration status of the skin's surface. The modification is intended to enhance penetration or binding properties, though the extent of these improvements remains an area of ongoing investigation in cosmetic chemistry.

How It Works

Like its parent molecule hyaluronic acid, this derivative is a humectant—it attracts water molecules and holds them in the skin. The thioethylamino modification may theoretically improve how the ingredient penetrates or adheres to skin, though the practical significance of this change is not yet firmly established.

Once applied, the ingredient sits primarily on the skin surface and in the outer stratum corneum, where it works to plump the skin and improve its hydration feel. This can temporarily reduce the appearance of fine lines and create a smoother, more supple texture.

Clinical Evidence & References

Hyaluronic acid itself has substantial evidence supporting its hydrating and skin-conditioning benefits. However, specific clinical studies on the thioethylamino derivative are limited in published literature, making it difficult to claim distinct advantages over standard hyaluronic acid with full confidence.

The modification suggests a cosmetic chemist's attempt to optimise the molecule, but independent clinical data demonstrating measurable superiority is not widely available. It is likely to function similarly to hyaluronic acid for practical purposes, though individual formulation and concentration will influence real-world performance.

How to Use

This ingredient is most effective when the skin is damp, as it relies on ambient moisture to work. Apply serums or products containing this ingredient to clean, slightly damp skin, then follow with an occlusive moisturiser to seal in hydration. It can be used twice daily, though once daily is sufficient for many people. Layer it before heavier creams or oils to maximise its hydrating effect.

Safety & Precautions

Gold thioethylamino hyaluronic acid is generally well-tolerated, with a low irritation profile similar to standard hyaluronic acid. Sensitivity is rare, though those with known sensitivities to hyaluronic acid should patch test first.

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