Malachite is a symbol of creativity and change, and was a sacred stone of ancient Egypt. Trace elements from Malachite including the most important one, copper carbonate, are free-radical scavengers which reduces oxidative stress and protects skin cells.

Mala’kite -the extract of Malachite formulated for use in This Works’ Fresh Skin, provides dual-action protection through direct cell detoxification and regeneration of the cell’s natural defence system. You could say it was a mineral source for stressed skins.
Research (including in-vitro and ex-vitro testing) on this extract has shown that Mala’kite enhances the activity of antioxidants in the skin.
To give you the science bit. Mala’kite has been seen to:-
The great Shamans of history attributed many benefits to Malachite including detoxification of the body, tissue healing and harmonisation of energy flows. In her book- “Healing with Gemstones”, Diane Stein accords Malachite numerous metaphysical properties. She says Malachite draws out deep feelings of hurt and resentment, breaks unwanted ties and outworn patterns of behaviour. It clears and activates chakras, clarifies emotions and releases negative experiences. It is credited for absorbing pollution and guarding against radiation as well as enhancing the nervous system.
Ancient Egyptians, Greeks and Romans used malachite for jewellery such as amulets to protect against the evil eye. Healers would place the stones on vital organs of the body to balance and harmonise the whole body. Great priestesses would ground the stone to powder, from which they made pastes used for make-up (eye shadow) and as care for the eyes, mouth and face. In the Middle Ages it was used to protect children from witches and other dangers.