Unique Yarns Co.

Italian artisan yarns

Copper Oxide-dyed 100% Merino wool


Copper Oxide yarn on 100% Merino wool

Copper Oxide Yarn on 100% Merino wool.

This yarn has been dyed using natural and pure copper oxide.

This copper gives the yarn powerful anti-bacterial properties and a natural subtle pink-ish colour.

Make a shawl, cowl or mittens to let your skin benefit of the copper oxide beneficial properties!

Yarn dyed with copper oxide
Yarn weight: Light-fingering weight
Blend: 100% Merino wool
Yardage: 50 g (1.8 oz) / 162 m (177 yds)
Care: Hand wash with warm water and gentle soap
The copper oxide remains effective for the life of the garment and is unaffected by washing

Copper oxide is anti-fungal and anti-bacterial [1] and improves the appearance of skin [2]. Some skin creams contain copper. Copper is non-toxic, non-sensitising, and non-irritating to the skin. The risk of adverse effects because of copper exposure is extremely low [3, 4].

Copper has been used throughout human history:
– in ancient Egypt (2000 BC), copper was used to sterilize water and wounds
– the ancient Greeks prescribed copper for pulmonary diseases
– during the Roman Empire, copper cooking utensils were used to prevent the spread of disease
– the Aztecs used copper oxide to treat skin conditions
– in the Second World War, Japanese soldiers put pieces of copper in their water bottles to help prevent dysentery [5].

Today copper is used as a water purifier, to protect against bacteria, fungi and viruses [1], and is added to wound dressings and cosmetic products [6, 7, 2].

Socks containing copper oxide particles, such as socks designed to protect the feet of diabetic individuals, are commercially available in many countries. In 2012, copper oxide containing socks helped cure the trapped Chilean miners of skin infections while still trapped 700 meters underground [8].

References and further reading:

1 BORKOW, G. Using copper to fight microorganisms. Curr Chem Biol, 2012, vol. 6, no. 2, p. 93-103.

2 BORKOW, G., GABBAY, J., LYAKHOVITSKY, A. and HUSZAR, M. Improvement of facial skin characteristics using copper oxide containing pillowcases: a double-blind, placebo-controlled, parallel, randomized study. Int J Cosmet. Sci. 2009, vol. 31, no. 6, p. 437-443.

3 HOSTYNEK, JJ. and MAIBACH, HI. Copper hypersensitivity: dermatologic aspects – an overview.
Rev. Environ. Health, 2003, vol. 18, no. 3, p. 153-183.

4 GORTER, RW., BUTORAC, M. and COBIAN, EP. Examination of the cutaneous absorption of copper after the use of cop
per-containing ointments. Am J Ther., 2004, vol. 11, no. 6, p. 453-458.

5 DOLLWET, HHA. and SORENSON, JRJ. Historic uses of copper compounds in medicine. Trace Elements in Medicine, 2001, vol. 2, no. p. 80-87.

6 UAUY, R., OLIVARES, M. and GONZALEZ, M. Essentiality of copper in humans. Am. J Clin. Nutr., 1998, vol. 67, no. 5 Suppl., p. 952S-959S.

and MARIKOVSKY, M. Molecular mechanisms of enhanced wound healing by copper oxide-impregnated dressings.
Wound. Repair Regen., 2010, vol. 18, no. 2, p. 266-275.

8 BORKOW, G. and MELLIBOVSKY, JC. Resolution of skin maladies of the trapped Chilean miners: the unplanned underground
copper-impregnated antifungal socks “trial”. Arch. Dermatol, 2012, vol. 148, no. 1, p. 134-136.



Additional information

Weight 50 kg
Dimensions 8 x 6 x 5 cm