Through a decade of medical research, Endor Technologies successfully formulated the patented active ingredient, nano gold technology (Gold Thioethylamino Hyaluronic Acid (nano)), in order to create the Endor Technologies anti-aging skincare range. 

The active ingredient in Endor products is AuHATM, which is composed of gold coated with 200 and 500 oligomer HA fragments of 5,000 to 10,000 daltons in size. At 22-nm total size they are smaller than any other HA-delivery system and can easily penetrate the surface of skin into the epidermis. A low concentration of AuHA has a very powerful effect.

Once applied to the skin, the gold nanotechnology activates the skin’s cell receptor which increases the natural production of HA, collagen and elastin resulting in firmer, healthier skin. This is clinically proven and dermatologically tested.


Nanotechnology involves the use of Nanoparticles that are smaller than 40 nanometers (1/25000 millimetres), which is about 100,000 times thinner than a strand of hair. The micro-size of nanoparticles allows deeper & better penetration into the skin, facilitating a stronger and more pronounced impact on the CD44 cellular receptors of the skin, thereby stimulates the endogenous production of new elastin, hyaluronic acid, and collagen.


Endor had developed a patented method of bonding Hyaluronic Acid (HA) to 10 nm gold particles in a gold-HA complex called Gold Thioethylamino Hyaluronic Acid (AuHA™) .

The highly charged part of the HA molecule bonds to the gold, makes the aggregate cluster very stealthy and with only 22 nm in size, it can easily penetrate the surface of the skin. The extremely high density HA coating triggers multiple CD44 receptors thereby stimulates the endogenous production of new elastin, hyaluronic acid, and collagen. The gold is sloughed from skin within 24 hours.


Ultrasound imaging was used to evaluate the new collagen and hyaluronic acid production in the skin of 23 volunteers after 28 days of treatment. The picture shows AuHA has activated the production of new collagen and hyaluronic acid by 32% to 89% in the epidermis and 37% to 171% in the dermis.

The top picture is an ultrasound image showing the cross section of skin. The bottom picture shows the same skin after 28 days using Endor skincare products. There is an improvement of skin firmness up to 75% and skin appearing smoother and looking younger.

Non-retouched pictures.
Clinical study performed at the Instituto de Fotomedicina, Centro Medico Teknon, Barcelona-Spain.


All Endor products contain AuHA™ approved in EU as a cosmetic ingredient and registered with the FDA for topical applications. Ceretox, a toxicological research center safety assessment report showed the use of the gold safe for cosmetic applications, based on toxicological profile, effect on gene expression (in vitro text at CSIC, skin absorption: Franz-cell test (IQAC lab-CSIC), Irritant potential, and patch test for human skin compatibility (Eurofins).