INCI name NTMET Organic Colloid of Gold
CAS # 7440-57-5
Appearance Pink- red liquid soluble in water
Solvent Pure water
Concentration  50 ppm – 200 ppm
pH 4.5-5
Safety When applied externally, NTMET colloidal gold does not enter the bloodstream and is not transported to major organs.
NTMET Organic Colloid of Gold
Ingredients CAS# % by Mass
Gold (as colloid) 7440-57-5 0.005-0.02
Low molecular weight amino acid

as capping agent

0.005-0.02
Water 7732-18-5 >99

It is well known that gold colloids have strong antimicrobial, anti-inflammatory and wound-healing properties, which makes them, although expensive, highly effective in the treatment of wounds, burns, and ulcers.

  • Wound-healing products:

-The antimicrobial properties of gold nanoparticles (AuNPs) are especially effective against antibiotic-resistant bacterial strains.

-The anti-inflammatory properties of gold nanoparticles reduce inflammation at the wound site, minimize tissue damage, speed up the healing process, and also stimulate tissue regeneration, which makes them effective for chronic wounds, diabetic ulcers, and burns.

  • Cosmetic and cosmeceutical products:

Colloidal gold is registered in the INCI as an ingredient that imparts antimicrobial and skin conditioning properties. Gold colloids are widely used in cosmeceutical products, including high-quality creams, lotions, soaps, shampoos, toothpaste, decorative cosmetics, etc. Gold nanoparticles in the colloid give the final product a number of properties sought after by consumers, including:

-Anti-aging / anti-oxidant properties

-anti-inflammatory action

-improved skin regeneration

-improved product penetration

-antimicrobial benefits.

Novotech offers a technology that enables the production, at a fraction of the cost of existing manufacturing methods, of highly concentrated, stable NTMET Organic Colloid of Gold that:

-Have antioxidant properties that can help reduce signs of aging such as wrinkles and fine lines (by neutralizing free radicals, they can help protect the skin from oxidative stress).

-Have anti-inflammatory properties: can reduce inflammation and soothe irritated skin, making them potentially useful for those with sensitive skin or conditions such as eczema, rosacea or acne.

-Improve skin regeneration: stimulate collagen production, improve skin elasticity, helping to keep the skin firm and youthful, and ensure its regeneration and restoration.

-Improve product penetration: help other active ingredients penetrate the skin more effectively, thus increasing their effectiveness.

-Have antimicrobial properties: protect the skin from bacteria, including those associated with acne or other skin conditions.